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Difference From:

[9aa9ba8b] Version 2.7 (user: drh tags: trunk, release, version-2.7, date: 2018-09-22 17:40:11)

To:

[d3f454fa] Update the built-in SQLite to the latest 3.26.0 beta. This is beta-testing for SQLite. (user: drh tags: trunk, date: 2018-11-13 16:20:59)

Changes to Makefile.classic.

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#### We sometimes add the -static option here so that we can build a
#    static executable that will run in a chroot jail.
#LIB = -static
TCC += -DFOSSIL_DYNAMIC_BUILD=1

TCCFLAGS = $(CFLAGS)








#### Extra arguments for linking the finished binary.  Fossil needs
#    to link against the Z-Lib compression library unless the miniz
#    library in the source tree is being used.  There are no other
#    required dependencies.
ZLIB_LIB.0 = -lz
ZLIB_LIB.1 =
................................................................................
ZLIB_LIB.  = $(ZLIB_LIB.0)

# If using zlib:
LIB += $(ZLIB_LIB.$(FOSSIL_ENABLE_MINIZ)) $(LDFLAGS)

# If using HTTPS:
LIB += -lcrypto -lssl






#### Tcl shell for use in running the fossil testsuite.  If you do not
#    care about testing the end result, this can be blank.
#
TCLSH = tclsh

# You should not need to change anything below this line







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#### We sometimes add the -static option here so that we can build a
#    static executable that will run in a chroot jail.
#LIB = -static
TCC += -DFOSSIL_DYNAMIC_BUILD=1

TCCFLAGS = $(CFLAGS)

# We don't attempt to use libedit or libreadline in this simplified
# build system (contrast auto.def and Makefile.in) so use the included
# copy of linenoise.  MinGW can't make use of this, but linenoise is
# ifdef'd out elsewhere for that platform.  Note that this is a make
# flag handled in src/main.mk, not a C preprocessor flag.
USE_LINENOISE := 1

#### Extra arguments for linking the finished binary.  Fossil needs
#    to link against the Z-Lib compression library unless the miniz
#    library in the source tree is being used.  There are no other
#    required dependencies.
ZLIB_LIB.0 = -lz
ZLIB_LIB.1 =
................................................................................
ZLIB_LIB.  = $(ZLIB_LIB.0)

# If using zlib:
LIB += $(ZLIB_LIB.$(FOSSIL_ENABLE_MINIZ)) $(LDFLAGS)

# If using HTTPS:
LIB += -lcrypto -lssl

# Many platforms put cos() needed by src/piechart.c in libm, rather than
# in libc.  We cannot enable this by default because libm doesn't exist
# everywhere.
#LIB += -lm

#### Tcl shell for use in running the fossil testsuite.  If you do not
#    care about testing the end result, this can be blank.
#
TCLSH = tclsh

# You should not need to change anything below this line

Changes to auto.def.

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cc-check-function-in-lib gethostbyname nsl
if {![cc-check-function-in-lib socket {socket network}]} {
    # Last resort, may be Windows
    if {[is_mingw]} {
        define-append LIBS -lwsock32
    }
}
















cc-check-function-in-lib ns_name_uncompress resolv


cc-check-functions utime
cc-check-functions usleep
cc-check-functions strchrnul
cc-check-functions pledge
cc-check-functions backtrace

# Check for getloadavg(), and if it doesn't exist, define FOSSIL_OMIT_LOAD_AVERAGE







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cc-check-function-in-lib gethostbyname nsl
if {![cc-check-function-in-lib socket {socket network}]} {
    # Last resort, may be Windows
    if {[is_mingw]} {
        define-append LIBS -lwsock32
    }
}

# The SMTP module requires special libraries and headers for MX DNS
# record lookups and such.
cc-check-includes arpa/nameser.h
cc-include-needs bind/resolv.h netinet/in.h
cc-check-includes bind/resolv.h
cc-check-includes resolv.h
if {    !(([cc-check-function-in-lib dn_expand resolv] ||
           [cc-check-function-in-lib   ns_name_uncompress {bind resolv}] ||
           [cc-check-function-in-lib __ns_name_uncompress {bind resolv}]) &&
          ([cc-check-function-in-lib   ns_parserr {bind resolv}] ||
           [cc-check-function-in-lib __ns_parserr {bind resolv}]) &&
          ([cc-check-function-in-lib   res_query {bind resolv}] ||
           [cc-check-function-in-lib __res_query {bind resolv}]))} {
    msg-result "WARNING: SMTP feature will not be able to look up local MX."
}
cc-check-function-in-lib res_9_ns_initparse resolv

# Other nonstandard function checks
cc-check-functions utime
cc-check-functions usleep
cc-check-functions strchrnul
cc-check-functions pledge
cc-check-functions backtrace

# Check for getloadavg(), and if it doesn't exist, define FOSSIL_OMIT_LOAD_AVERAGE

Changes to fossil.1.

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.TH FOSSIL "1" "February 2015" "http://fossil-scm.org" "User Commands"
.SH NAME
fossil \- Distributed Version Control System
.SH SYNOPSIS
.B fossil
\fIhelp\fR
.br
.B fossil
\fIhelp COMMAND\fR
.br
.B fossil
\fICOMMAND [OPTIONS]\fR
.SH DESCRIPTION
Fossil is a distributed version control system (DVCS) with built-in
wiki, ticket tracker, CGI/http interface, and http server.

.SH Common COMMANDs:

add            changes        gdiff          publish        status
.br
addremove      clean          help           pull           sync
.br
all            clone          import         push           tag
.br
amend          commit         info           rebuild        timeline
.br
annotate       delete         init           remote-url     ui
.br
bisect         diff           ls             revert         undo
.br
blame          export         merge          rm             unpublished
.br
branch         extras         mv             settings       unversioned
.br
bundle         finfo          open           sqlite3        update
.br
cat            fusefs         praise         stash          version





.SH FEATURES

Features as described on the fossil home page.

.HP
1.
.B Integrated Bug Tracking, Wiki, & Technotes
- In addition to doing distributed version control like Git and
Mercurial, Fossil also supports bug tracking, wiki, and technotes.


.HP
2.
.B Built-in Web Interface
- Fossil has a built-in and intuitive web interface that promotes
project situational awareness. Type "fossil ui" and Fossil automatically
opens a web browser to a page that shows detailed graphical history and
................................................................................

.HP
4.
.B Simple Networking
- No custom protocols or TCP ports. Fossil uses plain old HTTP (or HTTPS
or SSH) for all network communications, so it works fine from behind
restrictive firewalls, including proxies. The protocol is bandwidth
efficient to the point that Fossil can be used comfortably over dial-up.


.HP
5.
.B CGI/SCGI Enabled
- No server is required, but if you want to set one up, Fossil supports
four simple server configurations.

.HP
6.
.B Autosync
- Fossil supports "autosync" mode which helps to keep projects moving
forward by reducing the amount of needless forking and merging often
associated with distributed projects.
................................................................................

.HP
7.
.B Robust & Reliable
- Fossil stores content using an enduring file format in an SQLite
database so that transactions are atomic even if interrupted by a
power loss or system crash. Automatic self-checks verify that all
aspects of the repository are consistent prior to each commit. In
over seven years of operation, no work has ever been lost after

having been committed to a Fossil repository.




.SH DOCUMENTATION
http://www.fossil-scm.org/
.br
.B fossil
\fIui\fR
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.TH FOSSIL "1" "September 2018" "http://fossil-scm.org" "User Commands"
.SH NAME
fossil \- Distributed Version Control System
.SH SYNOPSIS
.B fossil
\fIhelp\fR
.br
.B fossil
\fIhelp COMMAND\fR
.br
.B fossil
\fICOMMAND [OPTIONS]\fR
.SH DESCRIPTION
Fossil is a distributed version control system (DVCS) with built-in
forum, wiki, ticket tracker, CGI/HTTP interface, and HTTP server.

.SH Common COMMANDs:



add            clean          help           push           timeline
.br
addremove      clone          import         rebuild        ui
.br
all            commit         info           remote-url     undo
.br
amend          delete         init           revert         unpublished
.br
annotate       diff           ls             rm             unversioned
.br
bisect         export         merge          settings       update
.br
blame          extras         mv             sql            version
.br
branch         finfo          open           stash
.br
bundle         fusefs         praise         status
.br
cat            gdiff          publish        sync
.br
changes        grep           pull           tag

.SH FEATURES

Features as described on the fossil home page.

.HP
1.
.B Integrated Bug Tracking, Wiki, Forum, and Technotes
- In addition to doing distributed version control like Git and
Mercurial, Fossil also supports bug tracking, wiki, forum, and
technotes.

.HP
2.
.B Built-in Web Interface
- Fossil has a built-in and intuitive web interface that promotes
project situational awareness. Type "fossil ui" and Fossil automatically
opens a web browser to a page that shows detailed graphical history and
................................................................................

.HP
4.
.B Simple Networking
- No custom protocols or TCP ports. Fossil uses plain old HTTP (or HTTPS
or SSH) for all network communications, so it works fine from behind
restrictive firewalls, including proxies. The protocol is bandwidth
efficient to the point that Fossil can be used comfortably over dial-up
or over the exceedingly slow Wifi on airliners.

.HP
5.
.B CGI/SCGI Enabled
- No server is required, but if you want to set one up, Fossil supports
four easy server configurations.

.HP
6.
.B Autosync
- Fossil supports "autosync" mode which helps to keep projects moving
forward by reducing the amount of needless forking and merging often
associated with distributed projects.
................................................................................

.HP
7.
.B Robust & Reliable
- Fossil stores content using an enduring file format in an SQLite
database so that transactions are atomic even if interrupted by a
power loss or system crash. Automatic self-checks verify that all
aspects of the repository are consistent prior to each commit.


.HP
8.
.B Free and Open-Source
- Uses the 2-clause BSD license.

.SH DOCUMENTATION
http://www.fossil-scm.org/
.br
.B fossil
\fIui\fR

Changes to skins/bootstrap/header.txt.

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<html lang="en">
<head>
  <meta charset="utf-8">
  <base href="$baseurl/$current_page" />
  <title>$<project_name>: $<title></title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <link rel="alternate" type="application/rss+xml" title="RSS Feed" href="$home/timeline.rss" />
    <link rel="stylesheet" href="$home/style.css?default" type="text/css" media="screen" />
    <script>
    function gebi(x){
      if(/^#/.test(x)) x = x.substr(1);
      var e = document.getElementById(x);
      if(!e) throw new Error("Expecting element with ID "+x);
................................................................................
          </div><!--/.nav-collapse -->
        </div>
      </div>
      <div class="content">
        <th1>
          html "<div class='container'>"
            html "<ul class='breadcrumb'>"
              html "<li><a href='$index_page'>Home</a></li>"
              html "<li><a href='$home/$current_page'>$title</a></li>"
              html "</ul>"
            </th1>






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<html lang="en">
<head>
  <meta charset="utf-8">
  <base href="$baseurl/$current_page" />
  <title>$<project_name>: $<title></title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="Content-Security-Policy" content="default-src 'self' data:; script-src 'self' 'nonce-$<nonce>'; style-src 'self' 'unsafe-inline'"/>
    <link rel="alternate" type="application/rss+xml" title="RSS Feed" href="$home/timeline.rss" />
    <link rel="stylesheet" href="$home/style.css?default" type="text/css" media="screen" />
    <script>
    function gebi(x){
      if(/^#/.test(x)) x = x.substr(1);
      var e = document.getElementById(x);
      if(!e) throw new Error("Expecting element with ID "+x);
................................................................................
          </div><!--/.nav-collapse -->
        </div>
      </div>
      <div class="content">
        <th1>
          html "<div class='container'>"
            html "<ul class='breadcrumb'>"
              html "<li><a href='$home$index_page'>Home</a></li>"
              html "<li><a href='$home/$current_page'>[htmlize $title]</a></li>"
              html "</ul>"
            </th1>

Changes to src/alerts.c.

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** are sent when email-send-method is "relay".  There should be an
** SMTP server configured as a Mail Submission Agent listening on the
** designated host and port and all times.
*/


/*
** COMMAND: alerts
** 
** Usage: %fossil alerts SUBCOMMAND ARGS...
**
** Subcommands:
**
**    pending                 Show all pending alerts.  Useful for debugging.
**
................................................................................
    const char *zEmail = db_column_text(&q, 1);
    const char *zCap = db_column_text(&q, 3);
    int nHit = 0;
    for(p=pEvents; p; p=p->pNext){
      if( strchr(zSub,p->type)==0 ) continue;
      if( p->needMod ){
        /* For events that require moderator approval, only send an alert
        ** if the recipient is a moderator for that type of event */

        char xType = '*';

        switch( p->type ){
          case 'f':  xType = '5';  break;
          case 't':  xType = 'q';  break;
          case 'w':  xType = 'l';  break;
        }
        if( strchr(zCap,xType)==0 ) continue;

      }else if( strchr(zCap,'s')!=0 || strchr(zCap,'a')!=0 ){
        /* Setup and admin users can get any notification that does not
        ** require moderation */
      }else{
        /* Other users only see the alert if they have sufficient
        ** privilege to view the event itself */
        char xType = '*';
................................................................................
    return;
  }
  if( fossil_strcmp(P("name"),"test1")==0 ){
    /* Visit the /announce/test1 page to see the CGI variables */
    @ <p style='border: 1px solid black; padding: 1ex;'>
    cgi_print_all(0, 0);
    @ </p>
  }else
  if( P("submit")!=0 && cgi_csrf_safe(1) ){
    char *zErr = alert_send_announcement();
    style_header("Announcement Sent");
    if( zErr ){
      @ <h1>Internal Error</h1>
      @ <p>The following error was reported by the system:
      @ <blockquote><pre>
      @ %h(zErr)
      @ </pre></blockquote>
    }else{
      @ <p>The announcement has been sent.</p>
    }
    style_footer();    
    return;






  }

  style_header("Send Announcement");
  @ <form method="POST">
  @ <table class="subscribe">
  if( g.perm.Admin ){
    int aa = PB("aa");
    int all = PB("all");
    const char *aack = aa ? "checked" : "";







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** are sent when email-send-method is "relay".  There should be an
** SMTP server configured as a Mail Submission Agent listening on the
** designated host and port and all times.
*/


/*
** COMMAND: alerts*
** 
** Usage: %fossil alerts SUBCOMMAND ARGS...
**
** Subcommands:
**
**    pending                 Show all pending alerts.  Useful for debugging.
**
................................................................................
    const char *zEmail = db_column_text(&q, 1);
    const char *zCap = db_column_text(&q, 3);
    int nHit = 0;
    for(p=pEvents; p; p=p->pNext){
      if( strchr(zSub,p->type)==0 ) continue;
      if( p->needMod ){
        /* For events that require moderator approval, only send an alert
        ** if the recipient is a moderator for that type of event.  Setup
        ** and Admin users always get notified. */
        char xType = '*';
        if( strpbrk(zCap,"as")==0 ){
          switch( p->type ){
            case 'f':  xType = '5';  break;
            case 't':  xType = 'q';  break;
            case 'w':  xType = 'l';  break;
          }
          if( strchr(zCap,xType)==0 ) continue;
        }
      }else if( strchr(zCap,'s')!=0 || strchr(zCap,'a')!=0 ){
        /* Setup and admin users can get any notification that does not
        ** require moderation */
      }else{
        /* Other users only see the alert if they have sufficient
        ** privilege to view the event itself */
        char xType = '*';
................................................................................
    return;
  }
  if( fossil_strcmp(P("name"),"test1")==0 ){
    /* Visit the /announce/test1 page to see the CGI variables */
    @ <p style='border: 1px solid black; padding: 1ex;'>
    cgi_print_all(0, 0);
    @ </p>

  }else if( P("submit")!=0 && cgi_csrf_safe(1) ){
    char *zErr = alert_send_announcement();
    style_header("Announcement Sent");
    if( zErr ){
      @ <h1>Internal Error</h1>
      @ <p>The following error was reported by the system:
      @ <blockquote><pre>
      @ %h(zErr)
      @ </pre></blockquote>
    }else{
      @ <p>The announcement has been sent.</p>
    }
    style_footer();    
    return;
  } else if( !alert_enabled() ){
    style_header("Cannot Send Announcement");
    @ <p>Either you have no subscribers yet, or email alerts are not yet
    @ <a href="https://fossil-scm.org/fossil/doc/trunk/www/alerts.md">set up</a>
    @ for this repository.</p>
    return;
  }

  style_header("Send Announcement");
  @ <form method="POST">
  @ <table class="subscribe">
  if( g.perm.Admin ){
    int aa = PB("aa");
    int all = PB("all");
    const char *aack = aa ? "checked" : "";

Changes to src/backoffice.c.

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    ** process does not need to do any backoffice work. */
    return;
  }else{
    /* We need to run backup to be (at a minimum) on-deck */
    backofficeDb = fossil_strdup(g.zRepositoryName);
  }
}








/*
** Check for errors prior to running backoffice_thread() or backoffice_run().
*/
static void backoffice_error_check_one(int *pOnce){
  if( *pOnce ){
    fossil_panic("multiple calls to backoffice()");
................................................................................
  Lease x;
  sqlite3_uint64 tmNow;
  sqlite3_uint64 idSelf;
  int lastWarning = 0;
  int warningDelay = 30;
  static int once = 0;


  backoffice_error_check_one(&once);
  idSelf = backofficeProcessId();
  while(1){
    tmNow = time(0);
    db_begin_write();
    backofficeReadLease(&x);
    if( x.tmNext>=tmNow
................................................................................

  /* Here is where the actual work of the backoffice happens */
  alert_backoffice(0);
  smtp_cleanup();
}

/*
** COMMAND: backoffice
**
** Usage: backoffice [-R repository]
**
** Run backoffice processing.  This might be done by a cron job or
** similar to make sure backoffice processing happens periodically.
*/
void backoffice_command(void){







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    ** process does not need to do any backoffice work. */
    return;
  }else{
    /* We need to run backup to be (at a minimum) on-deck */
    backofficeDb = fossil_strdup(g.zRepositoryName);
  }
}

/*
** Call this routine to disable backoffice
*/
void backoffice_disable(void){
  backofficeDb = "x";
}

/*
** Check for errors prior to running backoffice_thread() or backoffice_run().
*/
static void backoffice_error_check_one(int *pOnce){
  if( *pOnce ){
    fossil_panic("multiple calls to backoffice()");
................................................................................
  Lease x;
  sqlite3_uint64 tmNow;
  sqlite3_uint64 idSelf;
  int lastWarning = 0;
  int warningDelay = 30;
  static int once = 0;

  if( sqlite3_db_readonly(g.db, 0) ) return;
  backoffice_error_check_one(&once);
  idSelf = backofficeProcessId();
  while(1){
    tmNow = time(0);
    db_begin_write();
    backofficeReadLease(&x);
    if( x.tmNext>=tmNow
................................................................................

  /* Here is where the actual work of the backoffice happens */
  alert_backoffice(0);
  smtp_cleanup();
}

/*
** COMMAND: backoffice*
**
** Usage: backoffice [-R repository]
**
** Run backoffice processing.  This might be done by a cron job or
** similar to make sure backoffice processing happens periodically.
*/
void backoffice_command(void){

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    char *zDisplay = db_lget("bisect-display","chart");
    int m = (int)strlen(zDisplay);
    bisect_path();
    pMid = path_midpoint();
    if( pMid==0 ){
      fossil_print("bisect complete\n");
    }else{


      g.argv[1] = "update";
      g.argv[2] = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", pMid->rid);
      g.argc = 3;
      g.fNoSync = 1;
      update_cmd();

    }

    if( strncmp(zDisplay,"chart",m)==0 ){
      bisect_chart(1);
    }else if( strncmp(zDisplay, "log", m)==0 ){
      bisect_chart(0);
    }else if( strncmp(zDisplay, "status", m)==0 ){







>
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    char *zDisplay = db_lget("bisect-display","chart");
    int m = (int)strlen(zDisplay);
    bisect_path();
    pMid = path_midpoint();
    if( pMid==0 ){
      fossil_print("bisect complete\n");
    }else{
      int nSpan = path_length();
      int nStep = path_search_depth();
      g.argv[1] = "update";
      g.argv[2] = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", pMid->rid);
      g.argc = 3;
      g.fNoSync = 1;
      update_cmd();
      fossil_print("span: %d  steps-remaining: %d\n", nSpan, nStep);
    }

    if( strncmp(zDisplay,"chart",m)==0 ){
      bisect_chart(1);
    }else if( strncmp(zDisplay, "log", m)==0 ){
      bisect_chart(0);
    }else if( strncmp(zDisplay, "status", m)==0 ){

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  /* Commit */
  db_end_transaction(0);

  /* Do an autosync push, if requested */
  if( !isPrivate ) autosync_loop(SYNC_PUSH, db_get_int("autosync-tries",1),0);
}












































#if INTERFACE
/*
** Allows bits in the mBplqFlags parameter to branch_prepare_list_query().
*/
#define BRL_CLOSED_ONLY      0x001 /* Show only closed branches */
#define BRL_OPEN_ONLY        0x002 /* Show only open branches */
#define BRL_BOTH             0x003 /* Show both open and closed branches */
#define BRL_OPEN_CLOSED_MASK 0x003
#define BRL_MTIME            0x004 /* Include lastest check-in time */
#define BRL_ORDERBY_MTIME    0x008 /* Sort by MTIME. (otherwise sort by name)*/

#endif /* INTERFACE */

/*
** Prepare a query that will list branches.
**
** If (which<0) then the query pulls only closed branches. If
** (which>0) then the query pulls all (closed and opened)
** branches. Else the query pulls currently-opened branches.
*/
void branch_prepare_list_query(Stmt *pQuery, int brFlags){



  switch( brFlags & BRL_OPEN_CLOSED_MASK ){
    case BRL_CLOSED_ONLY: {
      db_prepare(pQuery,
        "SELECT value FROM tagxref"
        " WHERE tagid=%d AND value NOT NULL "
        "EXCEPT "

        "SELECT value FROM tagxref"
        " WHERE tagid=%d"
        "   AND rid IN leaf"
        "   AND NOT %z"
        " ORDER BY value COLLATE nocase /*sort*/",
        TAG_BRANCH, TAG_BRANCH, leaf_is_closed_sql("tagxref.rid")
      );
      break;
    }
    case BRL_BOTH: {
      db_prepare(pQuery,
        "SELECT DISTINCT value FROM tagxref"
        " WHERE tagid=%d AND value NOT NULL"
        "   AND rid IN leaf"
        " ORDER BY value COLLATE nocase /*sort*/",
        TAG_BRANCH
      );
      break;
    }
    case BRL_OPEN_ONLY: {
      db_prepare(pQuery,
        "SELECT DISTINCT value FROM tagxref"
        " WHERE tagid=%d AND value NOT NULL"
        "   AND rid IN leaf"
        "   AND NOT %z"
        " ORDER BY value COLLATE nocase /*sort*/",
        TAG_BRANCH, leaf_is_closed_sql("tagxref.rid")
      );
      break;
    }
  }










}

/*
** If the branch named in the argument is open, return a RID for one of
** the open leaves of that branch.  If the branch does not exists or is
** closed, return 0.
*/
................................................................................
**
**        Print the name of the branch for the current check-out
**
**    fossil branch info BRANCH-NAME
**
**        Print information about a branch
**
**    fossil branch list|ls ?-a|--all|-c|--closed?
**
**        List all branches.  Use -a or --all to list all branches and
**        -c or --closed to list all closed branches.  The default is to
**        show only open branches.


**
**    fossil branch new BRANCH-NAME BASIS ?OPTIONS?
**
**        Create a new branch BRANCH-NAME off of check-in BASIS.
**        Supported options for this subcommand include:
**        --private             branch is private (i.e., remains local)
**        --bgcolor COLOR       use COLOR instead of automatic background
................................................................................
  }else if( (strncmp(zCmd,"list",n)==0)||(strncmp(zCmd, "ls", n)==0) ){
    Stmt q;
    int vid;
    char *zCurrent = 0;
    int brFlags = BRL_OPEN_ONLY;
    if( find_option("all","a",0)!=0 ) brFlags = BRL_BOTH;
    if( find_option("closed","c",0)!=0 ) brFlags = BRL_CLOSED_ONLY;



    if( g.localOpen ){
      vid = db_lget_int("checkout", 0);
      zCurrent = db_text(0, "SELECT value FROM tagxref"
                            " WHERE rid=%d AND tagid=%d", vid, TAG_BRANCH);
    }
    branch_prepare_list_query(&q, brFlags);
................................................................................
    branch_new();
  }else{
    fossil_fatal("branch subcommand should be one of: "
                 "current info list ls new");
  }
}

static const char brlistQuery[] =
@ SELECT
@   tagxref.value,
@   max(event.mtime),
@   EXISTS(SELECT 1 FROM tagxref AS tx
@           WHERE tx.rid=tagxref.rid
@             AND tx.tagid=(SELECT tagid FROM tag WHERE tagname='closed')
@             AND tx.tagtype>0),
@   (SELECT tagxref.value
@      FROM plink CROSS JOIN tagxref
@    WHERE plink.pid=event.objid
@       AND tagxref.rid=plink.cid
@      AND tagxref.tagid=(SELECT tagid FROM tag WHERE tagname='branch')
@      AND tagtype>0),
@   count(*),
@   (SELECT uuid FROM blob WHERE rid=tagxref.rid),
@   event.bgcolor
@  FROM tagxref, tag, event
@ WHERE tagxref.tagid=tag.tagid
@   AND tagxref.tagtype>0
@   AND tag.tagname='branch'
@   AND event.objid=tagxref.rid
@ GROUP BY 1
@ ORDER BY 2 DESC;
;

/*
** This is the new-style branch-list page that shows the branch names
** together with their ages (time of last check-in) and whether or not
** they are closed or merged to another branch.
**
** Control jumps to this routine from brlist_page() (the /brlist handler)
** if there are no query parameters.
................................................................................
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(g.anon.Read); return; }
  style_header("Branches");
  style_adunit_config(ADUNIT_RIGHT_OK);
  style_submenu_checkbox("colors", "Use Branch Colors", 0, 0);
  login_anonymous_available();

  db_prepare(&q, brlistQuery/*works-like:""*/);

  rNow = db_double(0.0, "SELECT julianday('now')");
  @ <div class="brlist">
  @ <table class='sortable' data-column-types='tkNtt' data-init-sort='2'>
  @ <thead><tr>
  @ <th>Branch Name</th>
  @ <th>Age</th>
  @ <th>Check-ins</th>
................................................................................
    }
    if( zBgClr && zBgClr[0] && show_colors ){
      @ <tr style="background-color:%s(zBgClr)">
    }else{
      @ <tr>
    }
    @ <td>%z(href("%R/timeline?n=100&r=%T",zBranch))%h(zBranch)</a></td>
    @ <td data-sortkey="%016llx(-iMtime)">%s(zAge)</td>
    @ <td>%d(nCkin)</td>
    fossil_free(zAge);
    @ <td>%s(isClosed?"closed":"")</td>
    if( zMergeTo ){
      @ <td>merged into
      @ %z(href("%R/timeline?f=%!S",zLastCkin))%h(zMergeTo)</a></td>
    }else{







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  /* Commit */
  db_end_transaction(0);

  /* Do an autosync push, if requested */
  if( !isPrivate ) autosync_loop(SYNC_PUSH, db_get_int("autosync-tries",1),0);
}

/*
** Create a TEMP table named "tmp_brlist" with 7 columns:
**
**      name           Name of the branch
**      mtime          Time of last checkin on this branch
**      isclosed       True if the branch is closed
**      mergeto        Another branch this branch was merged into
**      nckin          Number of checkins on this branch
**      ckin           Hash of the last checkin on this branch
**      bgclr          Background color for this branch
*/
static const char createBrlistQuery[] =
@ CREATE TEMP TABLE IF NOT EXISTS tmp_brlist AS
@ SELECT
@   tagxref.value AS name,
@   max(event.mtime) AS mtime,
@   EXISTS(SELECT 1 FROM tagxref AS tx
@           WHERE tx.rid=tagxref.rid
@             AND tx.tagid=(SELECT tagid FROM tag WHERE tagname='closed')
@             AND tx.tagtype>0) AS isclosed,
@   (SELECT tagxref.value
@      FROM plink CROSS JOIN tagxref
@    WHERE plink.pid=event.objid
@       AND tagxref.rid=plink.cid
@      AND tagxref.tagid=(SELECT tagid FROM tag WHERE tagname='branch')
@      AND tagtype>0) AS mergeto,
@   count(*) AS nckin,
@   (SELECT uuid FROM blob WHERE rid=tagxref.rid) AS ckin,
@   event.bgcolor AS bgclr
@  FROM tagxref, tag, event
@ WHERE tagxref.tagid=tag.tagid
@   AND tagxref.tagtype>0
@   AND tag.tagname='branch'
@   AND event.objid=tagxref.rid
@ GROUP BY 1;
;

/* Call this routine to create the TEMP table */
static void brlist_create_temp_table(void){
  db_multi_exec(createBrlistQuery/*works-like:""*/);
}


#if INTERFACE
/*
** Allows bits in the mBplqFlags parameter to branch_prepare_list_query().
*/
#define BRL_CLOSED_ONLY      0x001 /* Show only closed branches */
#define BRL_OPEN_ONLY        0x002 /* Show only open branches */
#define BRL_BOTH             0x003 /* Show both open and closed branches */
#define BRL_OPEN_CLOSED_MASK 0x003
#define BRL_ORDERBY_MTIME    0x004 /* Sort by MTIME. (otherwise sort by name)*/
#define BRL_REVERSE          0x008 /* Reverse the sort order */

#endif /* INTERFACE */

/*
** Prepare a query that will list branches.
**
** If (which<0) then the query pulls only closed branches. If
** (which>0) then the query pulls all (closed and opened)
** branches. Else the query pulls currently-opened branches.
*/
void branch_prepare_list_query(Stmt *pQuery, int brFlags){
  Blob sql;
  blob_init(&sql, 0, 0);
  brlist_create_temp_table();
  switch( brFlags & BRL_OPEN_CLOSED_MASK ){
    case BRL_CLOSED_ONLY: {




      blob_append_sql(&sql,
        "SELECT name FROM tmp_brlist WHERE isclosed"





      );
      break;
    }
    case BRL_BOTH: {
      blob_append_sql(&sql,
        "SELECT name FROM tmp_brlist"




      );
      break;
    }
    case BRL_OPEN_ONLY: {
      blob_append_sql(&sql,
        "SELECT name FROM tmp_brlist WHERE NOT isclosed"





      );
      break;
    }
  }
  if( brFlags & BRL_ORDERBY_MTIME ){
    blob_append_sql(&sql, " ORDER BY -mtime");
  }else{
    blob_append_sql(&sql, " ORDER BY name COLLATE nocase");
  }
  if( brFlags & BRL_REVERSE ){
    blob_append_sql(&sql," DESC");
  }
  db_prepare_blob(pQuery, &sql);
  blob_reset(&sql);
}

/*
** If the branch named in the argument is open, return a RID for one of
** the open leaves of that branch.  If the branch does not exists or is
** closed, return 0.
*/
................................................................................
**
**        Print the name of the branch for the current check-out
**
**    fossil branch info BRANCH-NAME
**
**        Print information about a branch
**
**    fossil branch list|ls ?OPTIONS?
**
**        List all branches. Options:
**          -a|--all      List all branches.  Default show only open branches
**          -c|--closed   List closed branches.
**          -r            Reverse the sort order
**          -t            Show recently changed branches first
**
**    fossil branch new BRANCH-NAME BASIS ?OPTIONS?
**
**        Create a new branch BRANCH-NAME off of check-in BASIS.
**        Supported options for this subcommand include:
**        --private             branch is private (i.e., remains local)
**        --bgcolor COLOR       use COLOR instead of automatic background
................................................................................
  }else if( (strncmp(zCmd,"list",n)==0)||(strncmp(zCmd, "ls", n)==0) ){
    Stmt q;
    int vid;
    char *zCurrent = 0;
    int brFlags = BRL_OPEN_ONLY;
    if( find_option("all","a",0)!=0 ) brFlags = BRL_BOTH;
    if( find_option("closed","c",0)!=0 ) brFlags = BRL_CLOSED_ONLY;
    if( find_option("t",0,0)!=0 ) brFlags |= BRL_ORDERBY_MTIME;
    if( find_option("r",0,0)!=0 ) brFlags |= BRL_REVERSE;

    if( g.localOpen ){
      vid = db_lget_int("checkout", 0);
      zCurrent = db_text(0, "SELECT value FROM tagxref"
                            " WHERE rid=%d AND tagid=%d", vid, TAG_BRANCH);
    }
    branch_prepare_list_query(&q, brFlags);
................................................................................
    branch_new();
  }else{
    fossil_fatal("branch subcommand should be one of: "
                 "current info list ls new");
  }
}



























/*
** This is the new-style branch-list page that shows the branch names
** together with their ages (time of last check-in) and whether or not
** they are closed or merged to another branch.
**
** Control jumps to this routine from brlist_page() (the /brlist handler)
** if there are no query parameters.
................................................................................
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(g.anon.Read); return; }
  style_header("Branches");
  style_adunit_config(ADUNIT_RIGHT_OK);
  style_submenu_checkbox("colors", "Use Branch Colors", 0, 0);
  login_anonymous_available();

  brlist_create_temp_table();
  db_prepare(&q, "SELECT * FROM tmp_brlist ORDER BY mtime DESC");
  rNow = db_double(0.0, "SELECT julianday('now')");
  @ <div class="brlist">
  @ <table class='sortable' data-column-types='tkNtt' data-init-sort='2'>
  @ <thead><tr>
  @ <th>Branch Name</th>
  @ <th>Age</th>
  @ <th>Check-ins</th>
................................................................................
    }
    if( zBgClr && zBgClr[0] && show_colors ){
      @ <tr style="background-color:%s(zBgClr)">
    }else{
      @ <tr>
    }
    @ <td>%z(href("%R/timeline?n=100&r=%T",zBranch))%h(zBranch)</a></td>
    @ <td data-sortkey="%016llx(iMtime)">%s(zAge)</td>
    @ <td>%d(nCkin)</td>
    fossil_free(zAge);
    @ <td>%s(isClosed?"closed":"")</td>
    if( zMergeTo ){
      @ <td>merged into
      @ %z(href("%R/timeline?f=%!S",zLastCkin))%h(zMergeTo)</a></td>
    }else{

Changes to src/browse.c.

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  }else if( rAge*1440.0<90 ){
    return mprintf("%.1f minutes", rAge*1440.0);
  }else if( rAge*24.0<36 ){
    return mprintf("%.1f hours", rAge*24.0);
  }else if( rAge<365.0 ){
    return mprintf("%.1f days", rAge);
  }else{
    return mprintf("%.2f years", rAge/365.0);
  }
}

/*
** COMMAND: test-fileage
**
** Usage: %fossil test-fileage CHECKIN







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  }else if( rAge*1440.0<90 ){
    return mprintf("%.1f minutes", rAge*1440.0);
  }else if( rAge*24.0<36 ){
    return mprintf("%.1f hours", rAge*24.0);
  }else if( rAge<365.0 ){
    return mprintf("%.1f days", rAge);
  }else{
    return mprintf("%.2f years", rAge/365.2425);
  }
}

/*
** COMMAND: test-fileage
**
** Usage: %fossil test-fileage CHECKIN

Changes to src/capabilities.c.

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/*
** The following structure holds descriptions of the various capabilities.
*/
static struct Caps {
  char cCap;              /* The capability letter */
  unsigned short eClass;  /* The "class" for this capability */

  char *zAbbrev;          /* Abbreviated mnemonic name */
  char *zOneLiner;        /* One-line summary */
} aCap[] = {
  { 'a', CAPCLASS_SUPER,
    "Admin", "Create and delete users" },
  { 'b', CAPCLASS_WIKI|CAPCLASS_TKT,
    "Attach", "Add attchments to wiki or tickets" },
  { 'c', CAPCLASS_TKT,
    "Append-Tkt", "Append to existing tickets" },
  { 'd', CAPCLASS_WIKI|CAPCLASS_TKT,
    "Delete", "Delete wiki or tickets" },
  { 'e', CAPCLASS_DATA,
    "View-PII", "View sensitive info such as email addresses" },
  { 'f', CAPCLASS_WIKI,
    "New-Wiki", "Create new wiki pages" },
  { 'g', CAPCLASS_DATA,
    "Clone", "Clone the repository" },
  { 'h', CAPCLASS_OTHER,
    "Hyperlinks", "Show hyperlinks to detailed repository history" },
  { 'i', CAPCLASS_CODE,
    "Check-In", "Check-in code changes" },
  { 'j', CAPCLASS_WIKI,
    "Read-Wiki", "View wiki pages" },
  { 'k', CAPCLASS_WIKI,
    "Write-Wiki", "Edit wiki pages" },
  { 'l', CAPCLASS_WIKI|CAPCLASS_SUPER,
    "Mod-Wiki", "Moderator for wiki pages" },
  { 'm', CAPCLASS_WIKI,
    "Append-Wiki", "Append to wiki pages" },
  { 'n', CAPCLASS_TKT,
    "New-Tkt", "Create new tickets" },
  { 'o', CAPCLASS_CODE,
    "Check-Out", "Check out code" },
  { 'p', CAPCLASS_OTHER,
    "Password", "Change your own password" },
  { 'q', CAPCLASS_TKT|CAPCLASS_SUPER,
    "Mod-Tkt", "Moderate tickets" },
  { 'r', CAPCLASS_TKT,
    "Read-Tkt", "View tickets" },
  { 's', CAPCLASS_SUPER,
    "Superuser", "Setup and configure the respository" },
  { 't', CAPCLASS_TKT,
    "Reports", "Create new ticket report formats" },
  { 'u', CAPCLASS_OTHER,
    "Reader", "Inherit all the capabilities of the \"reader\" user" },
  { 'v', CAPCLASS_OTHER,
    "Developer", "Inherit all capabilities of the \"developer\" user" },
  { 'w', CAPCLASS_TKT,
    "Write-Tkt", "Edit tickets" },
  { 'x', CAPCLASS_DATA,
    "Private", "Push and/or pull private branches" },
  { 'y', CAPCLASS_SUPER,
    "Write-UV", "Push unversioned content" },
  { 'z', CAPCLASS_CODE,
    "Zip-Download", "Download a ZIP archive, tarball, or SQL archive" },
  { '2', CAPCLASS_FORUM,
    "Forum-Read", "Read forum posts by others" },
  { '3', CAPCLASS_FORUM,
    "Forum-Write", "Create new forum messages" },
  { '4', CAPCLASS_FORUM,
    "Forum-Trusted", "Create forum messages that bypass moderation" },
  { '5', CAPCLASS_FORUM|CAPCLASS_SUPER,
    "Forum-Mod", "Moderator for forum messages" },
  { '6', CAPCLASS_FORUM|CAPCLASS_SUPER,
    "Forum-Admin", "Set or remove capability '4' from other users" },
  { '7', CAPCLASS_ALERT,
    "Alerts", "Sign up for email alerts" },
  { 'A', CAPCLASS_ALERT|CAPCLASS_SUPER,
    "Announce", "Send announcements to all subscribers" },
  { 'D', CAPCLASS_OTHER,
    "Debug", "Enable debugging features" },
};























/*
** Generate HTML that lists all of the capability letters together with
** a brief summary of what each letter means.
*/
void capabilities_table(unsigned mClass){
  int i;

  @ <table>

  for(i=0; i<sizeof(aCap)/sizeof(aCap[0]); i++){

    if( (aCap[i].eClass & mClass)==0 ) continue;
    @ <tr><th valign="top">%c(aCap[i].cCap)</th>
    @  <td><i>%h(aCap[i].zAbbrev):</i> %h(aCap[i].zOneLiner)</td></tr>





  }



  @ </table>
}

/*
** Generate a "capability summary table" that shows the major capabilities
** against the various user categories.
*/







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/*
** The following structure holds descriptions of the various capabilities.
*/
static struct Caps {
  char cCap;              /* The capability letter */
  unsigned short eClass;  /* The "class" for this capability */
  unsigned nUser;         /* Number of users with this capability */
  char *zAbbrev;          /* Abbreviated mnemonic name */
  char *zOneLiner;        /* One-line summary */
} aCap[] = {
  { 'a', CAPCLASS_SUPER, 0,
    "Admin", "Create and delete users" },
  { 'b', CAPCLASS_WIKI|CAPCLASS_TKT, 0,
    "Attach", "Add attchments to wiki or tickets" },
  { 'c', CAPCLASS_TKT, 0,
    "Append-Tkt", "Append to existing tickets" },
  { 'd', CAPCLASS_WIKI|CAPCLASS_TKT, 0,
    "Delete", "Delete wiki or tickets" },
  { 'e', CAPCLASS_DATA, 0,
    "View-PII", "View sensitive info such as email addresses" },
  { 'f', CAPCLASS_WIKI, 0,
    "New-Wiki", "Create new wiki pages" },
  { 'g', CAPCLASS_DATA, 0,
    "Clone", "Clone the repository" },
  { 'h', CAPCLASS_OTHER, 0,
    "Hyperlinks", "Show hyperlinks to detailed repository history" },
  { 'i', CAPCLASS_CODE, 0,
    "Check-In", "Check-in code changes" },
  { 'j', CAPCLASS_WIKI, 0,
    "Read-Wiki", "View wiki pages" },
  { 'k', CAPCLASS_WIKI, 0,
    "Write-Wiki", "Edit wiki pages" },
  { 'l', CAPCLASS_WIKI|CAPCLASS_SUPER, 0,
    "Mod-Wiki", "Moderator for wiki pages" },
  { 'm', CAPCLASS_WIKI, 0,
    "Append-Wiki", "Append to wiki pages" },
  { 'n', CAPCLASS_TKT, 0,
    "New-Tkt", "Create new tickets" },
  { 'o', CAPCLASS_CODE, 0,
    "Check-Out", "Check out code" },
  { 'p', CAPCLASS_OTHER, 0,
    "Password", "Change your own password" },
  { 'q', CAPCLASS_TKT|CAPCLASS_SUPER, 0,
    "Mod-Tkt", "Moderate tickets" },
  { 'r', CAPCLASS_TKT, 0,
    "Read-Tkt", "View tickets" },
  { 's', CAPCLASS_SUPER, 0,
    "Superuser", "Setup and configure the respository" },
  { 't', CAPCLASS_TKT, 0,
    "Reports", "Create new ticket report formats" },
  { 'u', CAPCLASS_OTHER, 0,
    "Reader", "Inherit all the capabilities of the \"reader\" user" },
  { 'v', CAPCLASS_OTHER, 0,
    "Developer", "Inherit all capabilities of the \"developer\" user" },
  { 'w', CAPCLASS_TKT, 0,
    "Write-Tkt", "Edit tickets" },
  { 'x', CAPCLASS_DATA, 0,
    "Private", "Push and/or pull private branches" },
  { 'y', CAPCLASS_SUPER, 0,
    "Write-UV", "Push unversioned content" },
  { 'z', CAPCLASS_CODE, 0,
    "Zip-Download", "Download a ZIP archive, tarball, or SQL archive" },
  { '2', CAPCLASS_FORUM, 0,
    "Forum-Read", "Read forum posts by others" },
  { '3', CAPCLASS_FORUM, 0,
    "Forum-Write", "Create new forum messages" },
  { '4', CAPCLASS_FORUM, 0,
    "Forum-Trusted", "Create forum messages that bypass moderation" },
  { '5', CAPCLASS_FORUM|CAPCLASS_SUPER, 0,
    "Forum-Mod", "Moderator for forum messages" },
  { '6', CAPCLASS_FORUM|CAPCLASS_SUPER, 0,
    "Forum-Admin", "Set or remove capability '4' from other users" },
  { '7', CAPCLASS_ALERT, 0,
    "Alerts", "Sign up for email alerts" },
  { 'A', CAPCLASS_ALERT|CAPCLASS_SUPER, 0,
    "Announce", "Send announcements to all subscribers" },
  { 'D', CAPCLASS_OTHER, 0,
    "Debug", "Enable debugging features" },
};

/*
** Populate the aCap[].nUser values based on the current content
** of the USER table.
*/
void capabilities_count(void){
  int i;
  static int done = 0;
  Stmt q;
  if( done ) return;
  db_prepare(&q, "SELECT fullcap(cap) FROM user");
  while( db_step(&q)==SQLITE_ROW ){
    const char *zCap = db_column_text(&q, 0);
    if( zCap==0 || zCap[0]==0 ) continue;
    for(i=0; i<sizeof(aCap)/sizeof(aCap[0]); i++){
      if( strchr(zCap, aCap[i].cCap) ) aCap[i].nUser++;
    }
  }
  db_finalize(&q);
  done = 1;
}


/*
** Generate HTML that lists all of the capability letters together with
** a brief summary of what each letter means.
*/
void capabilities_table(unsigned mClass){
  int i;
  if( g.perm.Admin ) capabilities_count();
  @ <table>
  @ <tbody>
  for(i=0; i<sizeof(aCap)/sizeof(aCap[0]); i++){
    int n;
    if( (aCap[i].eClass & mClass)==0 ) continue;
    @ <tr><th valign="top">%c(aCap[i].cCap)</th>

    @  <td>%h(aCap[i].zAbbrev)</td><td>%h(aCap[i].zOneLiner)</td>\
    n = aCap[i].nUser;
    if( n && g.perm.Admin ){
      @ <td><a href="%R/setup_ulist?with=%c(aCap[i].cCap)">\
      @ %d(n) user%s(n>1?"s":"")</a></td>\
    }
    @ </tr>
  }
  @ </tbody>
  @ </table>
}

/*
** Generate a "capability summary table" that shows the major capabilities
** against the various user categories.
*/

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** Return true if information is coming from the loopback network.
*/
int cgi_is_loopback(const char *zIpAddr){
  return fossil_strcmp(zIpAddr, "127.0.0.1")==0 ||
         fossil_strcmp(zIpAddr, "::ffff:127.0.0.1")==0 ||
         fossil_strcmp(zIpAddr, "::1")==0;
}




















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** Return true if information is coming from the loopback network.
*/
int cgi_is_loopback(const char *zIpAddr){
  return fossil_strcmp(zIpAddr, "127.0.0.1")==0 ||
         fossil_strcmp(zIpAddr, "::ffff:127.0.0.1")==0 ||
         fossil_strcmp(zIpAddr, "::1")==0;
}

/*
** Return true if the HTTP request is likely to be from a small-screen
** mobile device.
**
** The returned value is a guess.  Use it only for setting up defaults.
*/
int cgi_from_mobile(void){
  const char *zAgent = P("HTTP_USER_AGENT");
  if( zAgent==0 ) return 0;
  if( sqlite3_strglob("*iPad*", zAgent)==0 ) return 0;
  return sqlite3_strlike("%mobile%", zAgent, 0)==0;
}

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      const char *z = aCommand[i].zName;
      const char *zBoldOn  = aCommand[i].eCmdFlags&CMDFLAG_1ST_TIER?"<b>" :"";
      const char *zBoldOff = aCommand[i].eCmdFlags&CMDFLAG_1ST_TIER?"</b>":"";
      if( '/'==*z || strncmp(z,"test",4)==0 ) continue;
      if( (aCommand[i].eCmdFlags & CMDFLAG_SETTING)!=0 ) continue;
      @ <li><a href="%R/help?cmd=%s(z)">%s(zBoldOn)%s(z)%s(zBoldOff)</a></li>
    }
    @ </ui></div>

    @ <a name='webpages'></a>
    @ <h1>Available web UI pages:</h1>
    @ <div class="columns" style="column-width: 18ex;">
    @ <ul>
    for(i=0; i<MX_COMMAND; i++){
      const char *z = aCommand[i].zName;
................................................................................
    const char *z = aCommand[i].zName;
    if( (aCommand[i].eCmdFlags & cmdMask)==0 ) continue;
    if( zPrefix && memcmp(zPrefix, z, nPrefix)!=0 ) continue;
    aCmd[nCmd++] = aCommand[i].zName;
  }
  multi_column_list(aCmd, nCmd);
}



























/*
** COMMAND: help
**
** Usage: %fossil help TOPIC
**    or: %fossil TOPIC --help
**
** Display information on how to use TOPIC, which may be a command, webpage, or
** setting.  Webpage names begin with "/".  To display a list of available
** topics, use one of:
**
**    %fossil help                Show common commands
**    %fossil help -a|--all       Show both common and auxiliary commands

**    %fossil help -s|--setting   Show setting names
**    %fossil help -t|--test      Show test commands only
**    %fossil help -x|--aux       Show auxiliary commands only
**    %fossil help -w|--www       Show list of webpages
*/
void help_cmd(void){
  int rc;
................................................................................
  const char *zCmdOrPage;
  const char *zCmdOrPagePlural;
  const CmdOrPage *pCmd = 0;
  if( g.argc<3 ){
    z = g.argv[0];
    fossil_print(
      "Usage: %s help TOPIC\n"
      "Common commands:  (use \"%s help -a|--all\" for a complete list)\n",
      z, z);
    command_list(0, CMDFLAG_1ST_TIER);
    version_cmd();
    return;




  }
  if( find_option("all","a",0) ){
    command_list(0, CMDFLAG_1ST_TIER | CMDFLAG_2ND_TIER);
    return;
  }
  else if( find_option("www","w",0) ){
    command_list(0, CMDFLAG_WEBPAGE);







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      const char *z = aCommand[i].zName;
      const char *zBoldOn  = aCommand[i].eCmdFlags&CMDFLAG_1ST_TIER?"<b>" :"";
      const char *zBoldOff = aCommand[i].eCmdFlags&CMDFLAG_1ST_TIER?"</b>":"";
      if( '/'==*z || strncmp(z,"test",4)==0 ) continue;
      if( (aCommand[i].eCmdFlags & CMDFLAG_SETTING)!=0 ) continue;
      @ <li><a href="%R/help?cmd=%s(z)">%s(zBoldOn)%s(z)%s(zBoldOff)</a></li>
    }
    @ </ul></div>

    @ <a name='webpages'></a>
    @ <h1>Available web UI pages:</h1>
    @ <div class="columns" style="column-width: 18ex;">
    @ <ul>
    for(i=0; i<MX_COMMAND; i++){
      const char *z = aCommand[i].zName;
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    const char *z = aCommand[i].zName;
    if( (aCommand[i].eCmdFlags & cmdMask)==0 ) continue;
    if( zPrefix && memcmp(zPrefix, z, nPrefix)!=0 ) continue;
    aCmd[nCmd++] = aCommand[i].zName;
  }
  multi_column_list(aCmd, nCmd);
}

/*
** Documentation on universal command-line options.
*/
/* @-comment: # */
static const char zOptions[] =
@ Command-line options common to all commands:
@ 
@   --args FILENAME         Read additional arguments and options from FILENAME
@   --cgitrace              Active CGI tracing
@   --comfmtflags VALUE     Set comment formatting flags to VALUE
@   --errorlog FILENAME     Log errors to FILENAME 
@   --help                  Show help on the command rather than running it
@   --httptrace             Trace outbound HTTP requests
@   --localtime             Display times using the local timezone
@   --no-th-hook            Do not run TH1 hooks
@   --quiet                 Reduce the amount of output
@   --sqlstats              Show SQL usage statistics when done
@   --sqltrace              Trace all SQL commands
@   --sshtrace              Trace SSH activity
@   --ssl-identity NAME     Set the SSL identity to NAME
@   --systemtrace           Trace calls to system()
@   --user|-U USER          Make the default user be USER
@   --utc                   Display times using UTC
@   --vfs NAME              Cause SQLite to use the NAME VFS
;

/*
** COMMAND: help
**
** Usage: %fossil help TOPIC
**    or: %fossil TOPIC --help
**
** Display information on how to use TOPIC, which may be a command, webpage, or
** setting.  Webpage names begin with "/".  To display a list of available
** topics, use one of:
**
**    %fossil help                Show common commands
**    %fossil help -a|--all       Show both common and auxiliary commands
**    %fossil help -o|--options   Show command-line options common to all cmds
**    %fossil help -s|--setting   Show setting names
**    %fossil help -t|--test      Show test commands only
**    %fossil help -x|--aux       Show auxiliary commands only
**    %fossil help -w|--www       Show list of webpages
*/
void help_cmd(void){
  int rc;
................................................................................
  const char *zCmdOrPage;
  const char *zCmdOrPagePlural;
  const CmdOrPage *pCmd = 0;
  if( g.argc<3 ){
    z = g.argv[0];
    fossil_print(
      "Usage: %s help TOPIC\n"
      "Common commands:  (use \"%s help help\" for more options)\n",
      z, z);
    command_list(0, CMDFLAG_1ST_TIER);
    version_cmd();
    return;
  }
  if( find_option("options","o",0) ){
    fossil_print("%s", zOptions);
    return;
  }
  if( find_option("all","a",0) ){
    command_list(0, CMDFLAG_1ST_TIER | CMDFLAG_2ND_TIER);
    return;
  }
  else if( find_option("www","w",0) ){
    command_list(0, CMDFLAG_WEBPAGE);

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  }else{
    @ <i>Deleted</i>
  }
  if( zClass ){
    @ </div>
  }
}



















/*
** Display all posts in a forum thread in chronological order
*/
static void forum_display_chronological(int froot, int target){
  ForumThread *pThread = forumthread_create(froot, 0);
  ForumEntry *p;
................................................................................
    if( pPost->zThreadTitle ){
      @ <h1>%h(pPost->zThreadTitle)</h1>
    }
    zDate = db_text(0, "SELECT datetime(%.17g)", pPost->rDate);
    @ <p>By %h(pPost->zUser) on %h(zDate) (%d(p->fpid))
    fossil_free(zDate);
    if( p->pEdit ){
      @ edit of %z(href("%R/forumpost/%S?t",p->pEdit->zUuid))%d(p->fprev)</a>
    }
    if( p->firt ){
      ForumEntry *pIrt = p->pPrev;
      while( pIrt && pIrt->fpid!=p->firt ) pIrt = pIrt->pPrev;
      if( pIrt ){
        @ reply to %z(href("%R/forumpost/%S?t",pIrt->zUuid))%d(p->firt)</a>
      }
    }
    if( p->pLeaf ){
      @ updated by %z(href("%R/forumpost/%S?t",p->pLeaf->zUuid))\
      @ %d(p->pLeaf->fpid)</a>
    }
    if( g.perm.Debug ){
      @ <span class="debug">\
      @ <a href="%R/artifact/%h(p->zUuid)">artifact</a></span>
    }
    if( p->fpid!=target ){
      @ %z(href("%R/forumpost/%S?t",p->zUuid))[link]</a>
    }
    isPrivate = content_is_private(p->fpid);
    sameUser = notAnon && fossil_strcmp(pPost->zUser, g.zLogin)==0;
    if( isPrivate && !g.perm.ModForum && !sameUser ){
      @ <p><span class="modpending">Awaiting Moderator Approval</span></p>
    }else{
      forum_render(0, pPost->zMimetype, pPost->zWiki, 0);
................................................................................
          @ <input type="submit" name="nullout" value="Delete">
        }
      }else if( g.perm.ModForum ){
        /* Provide moderators with moderation buttons for posts that
        ** are pending moderation */
        @ <input type="submit" name="approve" value="Approve">
        @ <input type="submit" name="reject" value="Reject">

      }else if( sameUser ){
        /* A post that is pending moderation can be deleted by the
        ** person who originally submitted the post */
        @ <input type="submit" name="reject" value="Delete">
      }
      @ </form></p>
    }
................................................................................
          @ <input type="submit" name="nullout" value="Delete">
        }
      }else if( g.perm.ModForum ){
        /* Provide moderators with moderation buttons for posts that
        ** are pending moderation */
        @ <input type="submit" name="approve" value="Approve">
        @ <input type="submit" name="reject" value="Reject">

      }else if( sameUser ){
        /* A post that is pending moderation can be deleted by the
        ** person who originally submitted the post */
        @ <input type="submit" name="reject" value="Delete">
      }
      @ </form></p>
    }
................................................................................
** it's entire thread.  The selected posting is enclosed within
** <div class='forumSel'>...</div>.  Javascript is used to move the
** selected posting into view after the page loads.
**
** Query parameters:
**
**   name=X        REQUIRED.  The hash of the post to display
**   t             Show a chronologic listing instead of hierarchical

*/
void forumpost_page(void){
  forumthread_page();
}

/*
** WEBPAGE: forumthread
................................................................................
** Show all forum messages associated with a particular message thread.
** The result is basically the same as /forumpost except that none of
** the postings in the thread are selected.
**
** Query parameters:
**
**   name=X        REQUIRED.  The hash of any post of the thread.
**   t             Show a chronologic listing instead of hierarchical

*/
void forumthread_page(void){
  int fpid;
  int froot;
  const char *zName = P("name");

  login_check_credentials();
  if( !g.perm.RdForum ){
    login_needed(g.anon.RdForum);
    return;
  }
  if( zName==0 ){
    webpage_error("Missing \"name=\" query parameter");
................................................................................
  }
  style_header("Forum");
  froot = db_int(0, "SELECT froot FROM forumpost WHERE fpid=%d", fpid);
  if( froot==0 ){
    webpage_error("Not a forum post: \"%s\"", zName);
  }
  if( fossil_strcmp(g.zPath,"forumthread")==0 ) fpid = 0;
  if( P("t") ){
    if( g.perm.Debug ){
      style_submenu_element("Hierarchical", "%R/%s/%s", g.zPath, zName);


    }                          



    forum_display_chronological(froot, fpid);
  }else{
    if( g.perm.Debug ){
      style_submenu_element("Chronological", "%R/%s/%s?t", g.zPath, zName);
    }                          
    forum_display_hierarchical(froot, fpid);
  }
  style_load_js("forum.js");
  style_footer();
}

/*
................................................................................
  }
  if( P("preview") ){
    @ <h1>Preview:</h1>
    forum_render(zTitle, zMimetype, zContent, "forumEdit");
  }
  style_header("New Forum Thread");
  @ <form action="%R/forume1" method="POST">
  @ <h1>New Message:</h1>
  forum_from_line();
  forum_entry_widget(zTitle, zMimetype, zContent);
  @ <input type="submit" name="preview" value="Preview">
  if( P("preview") ){
    @ <input type="submit" name="submit" value="Submit">
  }else{
    @ <input type="submit" name="submit" value="Submit" disabled>
................................................................................
  if( P("cancel") ){
    cgi_redirectf("%R/forumpost/%S",P("fpid"));
    return;
  }
  isCsrfSafe = cgi_csrf_safe(1);
  if( g.perm.ModForum && isCsrfSafe ){
    if( P("approve") ){

      moderation_approve(fpid);








      cgi_redirectf("%R/forumpost/%S",P("fpid"));
      return;
    }
    if( P("reject") ){
      char *zParent = 
        db_text(0,
          "SELECT uuid FROM forumpost, blob"
................................................................................
  srchFlags = search_restrict(SRCH_FORUM);
  if( !g.perm.RdForum ){
    login_needed(g.anon.RdForum);
    return;
  }
  style_header("Forum");
  if( g.perm.WrForum ){






    style_submenu_element("New Message","%R/forumnew");
  }
  if( g.perm.ModForum && moderation_needed() ){
    style_submenu_element("Moderation Requests", "%R/modreq");
  }
  if( (srchFlags & SRCH_FORUM)!=0 ){
    if( search_screen(SRCH_FORUM, 0) ){
      style_submenu_element("Recent Threads","%R/forum");







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  }else{
    @ <i>Deleted</i>
  }
  if( zClass ){
    @ </div>
  }
}

/*
** Generate the buttons in the display that allow a forum supervisor to
** mark a user as trusted.  Only do this if:
**
**   (1)  The poster is an individual, not a special user like "anonymous"
**   (2)  The current user has Forum Supervisor privilege
*/
static void generateTrustControls(Manifest *pPost){
  if( !g.perm.AdminForum ) return;
  if( login_is_special(pPost->zUser) ) return;
  @ <br>
  @ <label><input type="checkbox" name="trust">
  @ Trust user "%h(pPost->zUser)"
  @ so that future posts by "%h(pPost->zUser)" do not require moderation.
  @ </label>
  @ <input type="hidden" name="trustuser" value="%h(pPost->zUser)">
}

/*
** Display all posts in a forum thread in chronological order
*/
static void forum_display_chronological(int froot, int target){
  ForumThread *pThread = forumthread_create(froot, 0);
  ForumEntry *p;
................................................................................
    if( pPost->zThreadTitle ){
      @ <h1>%h(pPost->zThreadTitle)</h1>
    }
    zDate = db_text(0, "SELECT datetime(%.17g)", pPost->rDate);
    @ <p>By %h(pPost->zUser) on %h(zDate) (%d(p->fpid))
    fossil_free(zDate);
    if( p->pEdit ){
      @ edit of %z(href("%R/forumpost/%S?t=c",p->pEdit->zUuid))%d(p->fprev)</a>
    }
    if( p->firt ){
      ForumEntry *pIrt = p->pPrev;
      while( pIrt && pIrt->fpid!=p->firt ) pIrt = pIrt->pPrev;
      if( pIrt ){
        @ reply to %z(href("%R/forumpost/%S?t=c",pIrt->zUuid))%d(p->firt)</a>
      }
    }
    if( p->pLeaf ){
      @ updated by %z(href("%R/forumpost/%S?t=c",p->pLeaf->zUuid))\
      @ %d(p->pLeaf->fpid)</a>
    }
    if( g.perm.Debug ){
      @ <span class="debug">\
      @ <a href="%R/artifact/%h(p->zUuid)">artifact</a></span>
    }
    if( p->fpid!=target ){
      @ %z(href("%R/forumpost/%S?t=c",p->zUuid))[link]</a>
    }
    isPrivate = content_is_private(p->fpid);
    sameUser = notAnon && fossil_strcmp(pPost->zUser, g.zLogin)==0;
    if( isPrivate && !g.perm.ModForum && !sameUser ){
      @ <p><span class="modpending">Awaiting Moderator Approval</span></p>
    }else{
      forum_render(0, pPost->zMimetype, pPost->zWiki, 0);
................................................................................
          @ <input type="submit" name="nullout" value="Delete">
        }
      }else if( g.perm.ModForum ){
        /* Provide moderators with moderation buttons for posts that
        ** are pending moderation */
        @ <input type="submit" name="approve" value="Approve">
        @ <input type="submit" name="reject" value="Reject">
        generateTrustControls(pPost);
      }else if( sameUser ){
        /* A post that is pending moderation can be deleted by the
        ** person who originally submitted the post */
        @ <input type="submit" name="reject" value="Delete">
      }
      @ </form></p>
    }
................................................................................
          @ <input type="submit" name="nullout" value="Delete">
        }
      }else if( g.perm.ModForum ){
        /* Provide moderators with moderation buttons for posts that
        ** are pending moderation */
        @ <input type="submit" name="approve" value="Approve">
        @ <input type="submit" name="reject" value="Reject">
        generateTrustControls(pPost);
      }else if( sameUser ){
        /* A post that is pending moderation can be deleted by the
        ** person who originally submitted the post */
        @ <input type="submit" name="reject" value="Delete">
      }
      @ </form></p>
    }
................................................................................
** it's entire thread.  The selected posting is enclosed within
** <div class='forumSel'>...</div>.  Javascript is used to move the
** selected posting into view after the page loads.
**
** Query parameters:
**
**   name=X        REQUIRED.  The hash of the post to display
**   t=MODE        Display mode. MODE is 'c' for chronological or
**                   'h' for hierarchical, or 'a' for automatic.
*/
void forumpost_page(void){
  forumthread_page();
}

/*
** WEBPAGE: forumthread
................................................................................
** Show all forum messages associated with a particular message thread.
** The result is basically the same as /forumpost except that none of
** the postings in the thread are selected.
**
** Query parameters:
**
**   name=X        REQUIRED.  The hash of any post of the thread.
**   t=MODE        Display mode. MODE is 'c' for chronological or
**                   'h' for hierarchical, or 'a' for automatic.
*/
void forumthread_page(void){
  int fpid;
  int froot;
  const char *zName = P("name");
  const char *zMode = PD("t","a");
  login_check_credentials();
  if( !g.perm.RdForum ){
    login_needed(g.anon.RdForum);
    return;
  }
  if( zName==0 ){
    webpage_error("Missing \"name=\" query parameter");
................................................................................
  }
  style_header("Forum");
  froot = db_int(0, "SELECT froot FROM forumpost WHERE fpid=%d", fpid);
  if( froot==0 ){
    webpage_error("Not a forum post: \"%s\"", zName);
  }
  if( fossil_strcmp(g.zPath,"forumthread")==0 ) fpid = 0;
  if( zMode[0]=='a' ){
    if( cgi_from_mobile() ){
      zMode = "c";  /* Default to chronological on mobile */
    }else{
      zMode = "h";
    }
  }
  if( zMode[0]=='c' ){
    style_submenu_element("Hierarchical", "%R/%s/%s?t=h", g.zPath, zName);
    forum_display_chronological(froot, fpid);
  }else{

    style_submenu_element("Chronological", "%R/%s/%s?t=c", g.zPath, zName);

    forum_display_hierarchical(froot, fpid);
  }
  style_load_js("forum.js");
  style_footer();
}

/*
................................................................................
  }
  if( P("preview") ){
    @ <h1>Preview:</h1>
    forum_render(zTitle, zMimetype, zContent, "forumEdit");
  }
  style_header("New Forum Thread");
  @ <form action="%R/forume1" method="POST">
  @ <h1>New Thread:</h1>
  forum_from_line();
  forum_entry_widget(zTitle, zMimetype, zContent);
  @ <input type="submit" name="preview" value="Preview">
  if( P("preview") ){
    @ <input type="submit" name="submit" value="Submit">
  }else{
    @ <input type="submit" name="submit" value="Submit" disabled>
................................................................................
  if( P("cancel") ){
    cgi_redirectf("%R/forumpost/%S",P("fpid"));
    return;
  }
  isCsrfSafe = cgi_csrf_safe(1);
  if( g.perm.ModForum && isCsrfSafe ){
    if( P("approve") ){
      const char *zUserToTrust;
      moderation_approve(fpid);
      if( g.perm.AdminForum
       && PB("trust")
       && (zUserToTrust = P("trustuser"))!=0
      ){
        db_multi_exec("UPDATE user SET cap=cap||'4' "
                      "WHERE login=%Q AND cap NOT GLOB '*4*'",
                      zUserToTrust);
      }
      cgi_redirectf("%R/forumpost/%S",P("fpid"));
      return;
    }
    if( P("reject") ){
      char *zParent = 
        db_text(0,
          "SELECT uuid FROM forumpost, blob"
................................................................................
  srchFlags = search_restrict(SRCH_FORUM);
  if( !g.perm.RdForum ){
    login_needed(g.anon.RdForum);
    return;
  }
  style_header("Forum");
  if( g.perm.WrForum ){
    style_submenu_element("New Thread","%R/forumnew");
  }else{
    /* Can't combine this with previous case using the ternary operator
     * because that causes an error yelling about "non-constant format"
     * with some compilers.  I can't see it, since both expressions have
     * the same format, but I'm no C spec lawyer. */
    style_submenu_element("New Thread","%R/login");
  }
  if( g.perm.ModForum && moderation_needed() ){
    style_submenu_element("Moderation Requests", "%R/modreq");
  }
  if( (srchFlags & SRCH_FORUM)!=0 ){
    if( search_screen(SRCH_FORUM, 0) ){
      style_submenu_element("Recent Threads","%R/forum");

Changes to src/http_socket.c.

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  return rc;
}

/*
** Send content out over the open socket connection.
*/
size_t socket_send(void *NotUsed, const void *pContent, size_t N){
  size_t sent;
  size_t total = 0;
  while( N>0 ){
    sent = send(iSocket, pContent, N, 0);
    if( sent<=0 ) break;
    total += sent;
    N -= sent;
    pContent = (void*)&((char*)pContent)[sent];
  }
  return total;
}

/*
** Receive content back from the open socket connection.







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  return rc;
}

/*
** Send content out over the open socket connection.
*/
size_t socket_send(void *NotUsed, const void *pContent, size_t N){
  ssize_t sent;
  size_t total = 0;
  while( N>0 ){
    sent = send(iSocket, pContent, N, 0);
    if( sent<=0 ) break;
    total += (size_t)sent;
    N -= (size_t)sent;
    pContent = (void*)&((char*)pContent)[sent];
  }
  return total;
}

/*
** Receive content back from the open socket connection.

Changes to src/main.c.

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      fossil_fatal(
        "unrecognized command-line option, or missing argument: %s",
        g.argv[i]);
    }
  }
}

/*
** Print a list of words in multiple columns.
*/


/*
** This function returns a human readable version string.
*/
const char *get_version(){
  static const char version[] = RELEASE_VERSION " " MANIFEST_VERSION " "
                                MANIFEST_DATE " UTC";
................................................................................
      db_open_repository(zRepo);
    }
  }
#endif
  return zRepo;
}

/*
** Generate a web-page that lists all repositories located under the
** g.zRepositoryName directory and return non-zero.
**
** For the special case when g.zRepositoryName a non-chroot-jail "/",
** compose the list using the "repo:" entries in the global_config
** table of the configuration database.  These entries comprise all
** of the repositories known to the "all" command.  The special case
** processing is disallowed for chroot jails because g.zRepositoryName
** is always "/" inside a chroot jail and so it cannot be used as a flag
** to signal the special processing in that case.  The special case
** processing is intended for the "fossil all ui" command which never
** runs in a chroot jail anyhow.
**
** Or, if no repositories can be located beneath g.zRepositoryName,
** return 0.
*/
static int repo_list_page(void){
  Blob base;
  int n = 0;
  int allRepo;

  assert( g.db==0 );
  if( fossil_strcmp(g.zRepositoryName,"/")==0 && !g.fJail ){
    /* For the special case of the "repository directory" being "/",
    ** show all of the repositories named in the ~/.fossil database.
    **
    ** On unix systems, then entries are of the form "repo:/home/..."
    ** and on Windows systems they are like on unix, starting with a "/"
    ** or they can begin with a drive letter: "repo:C:/Users/...".  In either
    ** case, we want returned path to omit any initial "/".
    */
    db_open_config(1, 0);
    db_multi_exec(
       "CREATE TEMP VIEW sfile AS"
       "  SELECT ltrim(substr(name,6),'/') AS 'pathname' FROM global_config"
       "   WHERE name GLOB 'repo:*'"
    );
    allRepo = 1;
  }else{
    /* The default case:  All repositories under the g.zRepositoryName
    ** directory.
    */
    blob_init(&base, g.zRepositoryName, -1);
    sqlite3_open(":memory:", &g.db);
    db_multi_exec("CREATE TABLE sfile(pathname TEXT);");
    db_multi_exec("CREATE TABLE vfile(pathname);");
    vfile_scan(&base, blob_size(&base), 0, 0, 0);
    db_multi_exec("DELETE FROM sfile WHERE pathname NOT GLOB '*[^/].fossil'");
    allRepo = 0;
  }
  @ <html>
  @ <head>
  @ <base href="%s(g.zBaseURL)/" />
  @ <meta name="viewport" content="width=device-width, initial-scale=1.0">
  @ <title>Repository List</title>
  @ </head>
  @ <body>
  n = db_int(0, "SELECT count(*) FROM sfile");
  if( n>0 ){
    Stmt q;
    sqlite3_int64 iNow, iMTime;
    @ <h1 align="center">Fossil Repositories</h1>
    @ <table border="0" class="sortable" data-init-sort="1" \
    @ data-column-types="tnk"><thead>
    @ <tr><th>Filename<th width="20"><th>Last Modified</tr>
    @ </thead><tbody>
    db_prepare(&q, "SELECT pathname"
                   " FROM sfile ORDER BY pathname COLLATE nocase;");
    iNow = db_int64(0, "SELECT strftime('%%s','now')");
    while( db_step(&q)==SQLITE_ROW ){
      const char *zName = db_column_text(&q, 0);
      int nName = (int)strlen(zName);
      char *zUrl;
      char *zAge;
      char *zFull;
      if( nName<7 ) continue;
      zUrl = sqlite3_mprintf("%.*s", nName-7, zName);
      if( zName[0]=='/'
#ifdef _WIN32
          || sqlite3_strglob("[a-zA-Z]:/*", zName)==0
#endif
      ){
        zFull = mprintf("%s", zName);
      }else if ( allRepo ){
        zFull = mprintf("/%s", zName);
      }else{
        zFull = mprintf("%s/%s", g.zRepositoryName, zName);
      }
      iMTime = file_mtime(zFull, ExtFILE);
      fossil_free(zFull);
      if( iMTime<=0 ){
        zAge = mprintf("...");
      }else{
        zAge = human_readable_age((iNow - iMTime)/86400.0);
      }
      if( sqlite3_strglob("*.fossil", zName)!=0 ){
        /* The "fossil server DIRECTORY" and "fossil ui DIRECTORY" commands
        ** do not work for repositories whose names do not end in ".fossil".
        ** So do not hyperlink those cases. */
        @ <tr><td>%h(zName)
      } else if( sqlite3_strglob("*/.*", zName)==0 ){
        /* Do not show hidden repos */
        @ <tr><td>%h(zName) (hidden)
      } else if( allRepo && sqlite3_strglob("[a-zA-Z]:/?*", zName)!=0 ){
        @ <tr><td><a href="%R/%T(zUrl)/home" target="_blank">/%h(zName)</a>
      }else{
        @ <tr><td><a href="%R/%T(zUrl)/home" target="_blank">%h(zName)</a>
      }
      @ <td></td><td data-sortkey='%010llx(iNow - iMTime)'>%h(zAge)</tr>
      fossil_free(zAge);
      sqlite3_free(zUrl);
    }
    @ </tbody></table>
  }else{
    @ <h1>No Repositories Found</h1>
  }
  @ <script>%s(builtin_text("sorttable.js"))</script>
  @ </body>
  @ </html>
  cgi_reply();
  sqlite3_close(g.db);
  g.db = 0;
  return n;
}

/*
** COMMAND: test-list-page
**
** Usage: %fossil test-list-page DIRECTORY
**
** Show all repositories underneath DIRECTORY.  Or if DIRECTORY is "/"
** show all repositories in the ~/.fossil file.
*/
void test_list_page(void){
  if( g.argc<3 ){
    g.zRepositoryName = "/";
  }else{
    g.zRepositoryName = g.argv[2];
  }
  g.httpOut = stdout;
  repo_list_page();
}

/*
** Called whenever a crash is encountered while processing a webpage.
*/
void sigsegv_handler(int x){
#if HAVE_BACKTRACE
  void *array[20];
  size_t size;
................................................................................
  noJail = find_option("nojail",0,0)!=0;
  allowRepoList = find_option("repolist",0,0)!=0;
  g.useLocalauth = find_option("localauth", 0, 0)!=0;
  g.sslNotAvailable = find_option("nossl", 0, 0)!=0;
  g.fNoHttpCompress = find_option("nocompress",0,0)!=0;
  zInFile = find_option("in",0,1);
  if( zInFile ){

    g.httpIn = fossil_fopen(zInFile, "rb");
    if( g.httpIn==0 ) fossil_fatal("cannot open \"%s\" for reading", zInFile);
  }else{
    g.httpIn = stdin;
  }
  zOutFile = find_option("out",0,1);
  if( zOutFile ){







<
<
<
<







 







<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
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<
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<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
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<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<
<







 







>







970
971
972
973
974
975
976




977
978
979
980
981
982
983
....
1295
1296
1297
1298
1299
1300
1301
















































































































































1302
1303
1304
1305
1306
1307
1308
....
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
      fossil_fatal(
        "unrecognized command-line option, or missing argument: %s",
        g.argv[i]);
    }
  }
}






/*
** This function returns a human readable version string.
*/
const char *get_version(){
  static const char version[] = RELEASE_VERSION " " MANIFEST_VERSION " "
                                MANIFEST_DATE " UTC";
................................................................................
      db_open_repository(zRepo);
    }
  }
#endif
  return zRepo;
}

















































































































































/*
** Called whenever a crash is encountered while processing a webpage.
*/
void sigsegv_handler(int x){
#if HAVE_BACKTRACE
  void *array[20];
  size_t size;
................................................................................
  noJail = find_option("nojail",0,0)!=0;
  allowRepoList = find_option("repolist",0,0)!=0;
  g.useLocalauth = find_option("localauth", 0, 0)!=0;
  g.sslNotAvailable = find_option("nossl", 0, 0)!=0;
  g.fNoHttpCompress = find_option("nocompress",0,0)!=0;
  zInFile = find_option("in",0,1);
  if( zInFile ){
    backoffice_disable();
    g.httpIn = fossil_fopen(zInFile, "rb");
    if( g.httpIn==0 ) fossil_fatal("cannot open \"%s\" for reading", zInFile);
  }else{
    g.httpIn = stdin;
  }
  zOutFile = find_option("out",0,1);
  if( zOutFile ){

Changes to src/main.mk.

102
103
104
105
106
107
108

109
110
111
112
113
114
115
...
312
313
314
315
316
317
318

319
320
321
322
323
324
325
...
449
450
451
452
453
454
455

456
457
458
459
460
461
462
...
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
...
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
...
784
785
786
787
788
789
790

791
792
793
794
795
796
797
....
1555
1556
1557
1558
1559
1560
1561








1562
1563
1564
1565
1566
1567
1568
  $(SRCDIR)/popen.c \
  $(SRCDIR)/pqueue.c \
  $(SRCDIR)/printf.c \
  $(SRCDIR)/publish.c \
  $(SRCDIR)/purge.c \
  $(SRCDIR)/rebuild.c \
  $(SRCDIR)/regexp.c \

  $(SRCDIR)/report.c \
  $(SRCDIR)/rss.c \
  $(SRCDIR)/schema.c \
  $(SRCDIR)/search.c \
  $(SRCDIR)/security_audit.c \
  $(SRCDIR)/setup.c \
  $(SRCDIR)/setupuser.c \
................................................................................
  $(OBJDIR)/popen_.c \
  $(OBJDIR)/pqueue_.c \
  $(OBJDIR)/printf_.c \
  $(OBJDIR)/publish_.c \
  $(OBJDIR)/purge_.c \
  $(OBJDIR)/rebuild_.c \
  $(OBJDIR)/regexp_.c \

  $(OBJDIR)/report_.c \
  $(OBJDIR)/rss_.c \
  $(OBJDIR)/schema_.c \
  $(OBJDIR)/search_.c \
  $(OBJDIR)/security_audit_.c \
  $(OBJDIR)/setup_.c \
  $(OBJDIR)/setupuser_.c \
................................................................................
 $(OBJDIR)/popen.o \
 $(OBJDIR)/pqueue.o \
 $(OBJDIR)/printf.o \
 $(OBJDIR)/publish.o \
 $(OBJDIR)/purge.o \
 $(OBJDIR)/rebuild.o \
 $(OBJDIR)/regexp.o \

 $(OBJDIR)/report.o \
 $(OBJDIR)/rss.o \
 $(OBJDIR)/schema.o \
 $(OBJDIR)/search.o \
 $(OBJDIR)/security_audit.o \
 $(OBJDIR)/setup.o \
 $(OBJDIR)/setupuser.o \
................................................................................
                 -DSQLITE_OMIT_LOAD_EXTENSION \
                 -DSQLITE_MAX_EXPR_DEPTH=0 \
                 -DSQLITE_USE_ALLOCA \
                 -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                 -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                 -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                 -DSQLITE_ENABLE_FTS4 \
                 -DSQLITE_ENABLE_FTS3_PARENTHESIS \
                 -DSQLITE_ENABLE_DBSTAT_VTAB \
                 -DSQLITE_ENABLE_JSON1 \
                 -DSQLITE_ENABLE_FTS5 \
                 -DSQLITE_ENABLE_STMTVTAB \
                 -DSQLITE_HAVE_ZLIB \
                 -DSQLITE_INTROSPECTION_PRAGMAS \
                 -DSQLITE_ENABLE_DBPAGE_VTAB
................................................................................
                -DSQLITE_OMIT_LOAD_EXTENSION \
                -DSQLITE_MAX_EXPR_DEPTH=0 \
                -DSQLITE_USE_ALLOCA \
                -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                -DSQLITE_ENABLE_FTS4 \
                -DSQLITE_ENABLE_FTS3_PARENTHESIS \
                -DSQLITE_ENABLE_DBSTAT_VTAB \
                -DSQLITE_ENABLE_JSON1 \
                -DSQLITE_ENABLE_FTS5 \
                -DSQLITE_ENABLE_STMTVTAB \
                -DSQLITE_HAVE_ZLIB \
                -DSQLITE_INTROSPECTION_PRAGMAS \
                -DSQLITE_ENABLE_DBPAGE_VTAB \
................................................................................
	$(OBJDIR)/popen_.c:$(OBJDIR)/popen.h \
	$(OBJDIR)/pqueue_.c:$(OBJDIR)/pqueue.h \
	$(OBJDIR)/printf_.c:$(OBJDIR)/printf.h \
	$(OBJDIR)/publish_.c:$(OBJDIR)/publish.h \
	$(OBJDIR)/purge_.c:$(OBJDIR)/purge.h \
	$(OBJDIR)/rebuild_.c:$(OBJDIR)/rebuild.h \
	$(OBJDIR)/regexp_.c:$(OBJDIR)/regexp.h \

	$(OBJDIR)/report_.c:$(OBJDIR)/report.h \
	$(OBJDIR)/rss_.c:$(OBJDIR)/rss.h \
	$(OBJDIR)/schema_.c:$(OBJDIR)/schema.h \
	$(OBJDIR)/search_.c:$(OBJDIR)/search.h \
	$(OBJDIR)/security_audit_.c:$(OBJDIR)/security_audit.h \
	$(OBJDIR)/setup_.c:$(OBJDIR)/setup.h \
	$(OBJDIR)/setupuser_.c:$(OBJDIR)/setupuser.h \
................................................................................
$(OBJDIR)/regexp_.c:	$(SRCDIR)/regexp.c $(OBJDIR)/translate
	$(OBJDIR)/translate $(SRCDIR)/regexp.c >$@

$(OBJDIR)/regexp.o:	$(OBJDIR)/regexp_.c $(OBJDIR)/regexp.h $(SRCDIR)/config.h
	$(XTCC) -o $(OBJDIR)/regexp.o -c $(OBJDIR)/regexp_.c

$(OBJDIR)/regexp.h:	$(OBJDIR)/headers









$(OBJDIR)/report_.c:	$(SRCDIR)/report.c $(OBJDIR)/translate
	$(OBJDIR)/translate $(SRCDIR)/report.c >$@

$(OBJDIR)/report.o:	$(OBJDIR)/report_.c $(OBJDIR)/report.h $(SRCDIR)/config.h
	$(XTCC) -o $(OBJDIR)/report.o -c $(OBJDIR)/report_.c








>







 







>







 







>







 







<







 







<







 







>







 







>
>
>
>
>
>
>
>







102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
...
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
...
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
...
575
576
577
578
579
580
581

582
583
584
585
586
587
588
...
601
602
603
604
605
606
607

608
609
610
611
612
613
614
...
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
....
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
  $(SRCDIR)/popen.c \
  $(SRCDIR)/pqueue.c \
  $(SRCDIR)/printf.c \
  $(SRCDIR)/publish.c \
  $(SRCDIR)/purge.c \
  $(SRCDIR)/rebuild.c \
  $(SRCDIR)/regexp.c \
  $(SRCDIR)/repolist.c \
  $(SRCDIR)/report.c \
  $(SRCDIR)/rss.c \
  $(SRCDIR)/schema.c \
  $(SRCDIR)/search.c \
  $(SRCDIR)/security_audit.c \
  $(SRCDIR)/setup.c \
  $(SRCDIR)/setupuser.c \
................................................................................
  $(OBJDIR)/popen_.c \
  $(OBJDIR)/pqueue_.c \
  $(OBJDIR)/printf_.c \
  $(OBJDIR)/publish_.c \
  $(OBJDIR)/purge_.c \
  $(OBJDIR)/rebuild_.c \
  $(OBJDIR)/regexp_.c \
  $(OBJDIR)/repolist_.c \
  $(OBJDIR)/report_.c \
  $(OBJDIR)/rss_.c \
  $(OBJDIR)/schema_.c \
  $(OBJDIR)/search_.c \
  $(OBJDIR)/security_audit_.c \
  $(OBJDIR)/setup_.c \
  $(OBJDIR)/setupuser_.c \
................................................................................
 $(OBJDIR)/popen.o \
 $(OBJDIR)/pqueue.o \
 $(OBJDIR)/printf.o \
 $(OBJDIR)/publish.o \
 $(OBJDIR)/purge.o \
 $(OBJDIR)/rebuild.o \
 $(OBJDIR)/regexp.o \
 $(OBJDIR)/repolist.o \
 $(OBJDIR)/report.o \
 $(OBJDIR)/rss.o \
 $(OBJDIR)/schema.o \
 $(OBJDIR)/search.o \
 $(OBJDIR)/security_audit.o \
 $(OBJDIR)/setup.o \
 $(OBJDIR)/setupuser.o \
................................................................................
                 -DSQLITE_OMIT_LOAD_EXTENSION \
                 -DSQLITE_MAX_EXPR_DEPTH=0 \
                 -DSQLITE_USE_ALLOCA \
                 -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                 -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                 -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                 -DSQLITE_ENABLE_FTS4 \

                 -DSQLITE_ENABLE_DBSTAT_VTAB \
                 -DSQLITE_ENABLE_JSON1 \
                 -DSQLITE_ENABLE_FTS5 \
                 -DSQLITE_ENABLE_STMTVTAB \
                 -DSQLITE_HAVE_ZLIB \
                 -DSQLITE_INTROSPECTION_PRAGMAS \
                 -DSQLITE_ENABLE_DBPAGE_VTAB
................................................................................
                -DSQLITE_OMIT_LOAD_EXTENSION \
                -DSQLITE_MAX_EXPR_DEPTH=0 \
                -DSQLITE_USE_ALLOCA \
                -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                -DSQLITE_ENABLE_FTS4 \

                -DSQLITE_ENABLE_DBSTAT_VTAB \
                -DSQLITE_ENABLE_JSON1 \
                -DSQLITE_ENABLE_FTS5 \
                -DSQLITE_ENABLE_STMTVTAB \
                -DSQLITE_HAVE_ZLIB \
                -DSQLITE_INTROSPECTION_PRAGMAS \
                -DSQLITE_ENABLE_DBPAGE_VTAB \
................................................................................
	$(OBJDIR)/popen_.c:$(OBJDIR)/popen.h \
	$(OBJDIR)/pqueue_.c:$(OBJDIR)/pqueue.h \
	$(OBJDIR)/printf_.c:$(OBJDIR)/printf.h \
	$(OBJDIR)/publish_.c:$(OBJDIR)/publish.h \
	$(OBJDIR)/purge_.c:$(OBJDIR)/purge.h \
	$(OBJDIR)/rebuild_.c:$(OBJDIR)/rebuild.h \
	$(OBJDIR)/regexp_.c:$(OBJDIR)/regexp.h \
	$(OBJDIR)/repolist_.c:$(OBJDIR)/repolist.h \
	$(OBJDIR)/report_.c:$(OBJDIR)/report.h \
	$(OBJDIR)/rss_.c:$(OBJDIR)/rss.h \
	$(OBJDIR)/schema_.c:$(OBJDIR)/schema.h \
	$(OBJDIR)/search_.c:$(OBJDIR)/search.h \
	$(OBJDIR)/security_audit_.c:$(OBJDIR)/security_audit.h \
	$(OBJDIR)/setup_.c:$(OBJDIR)/setup.h \
	$(OBJDIR)/setupuser_.c:$(OBJDIR)/setupuser.h \
................................................................................
$(OBJDIR)/regexp_.c:	$(SRCDIR)/regexp.c $(OBJDIR)/translate
	$(OBJDIR)/translate $(SRCDIR)/regexp.c >$@

$(OBJDIR)/regexp.o:	$(OBJDIR)/regexp_.c $(OBJDIR)/regexp.h $(SRCDIR)/config.h
	$(XTCC) -o $(OBJDIR)/regexp.o -c $(OBJDIR)/regexp_.c

$(OBJDIR)/regexp.h:	$(OBJDIR)/headers

$(OBJDIR)/repolist_.c:	$(SRCDIR)/repolist.c $(OBJDIR)/translate
	$(OBJDIR)/translate $(SRCDIR)/repolist.c >$@

$(OBJDIR)/repolist.o:	$(OBJDIR)/repolist_.c $(OBJDIR)/repolist.h $(SRCDIR)/config.h
	$(XTCC) -o $(OBJDIR)/repolist.o -c $(OBJDIR)/repolist_.c

$(OBJDIR)/repolist.h:	$(OBJDIR)/headers

$(OBJDIR)/report_.c:	$(SRCDIR)/report.c $(OBJDIR)/translate
	$(OBJDIR)/translate $(SRCDIR)/report.c >$@

$(OBJDIR)/report.o:	$(OBJDIR)/report_.c $(OBJDIR)/report.h $(SRCDIR)/config.h
	$(XTCC) -o $(OBJDIR)/report.o -c $(OBJDIR)/report_.c

Changes to src/makeheaders.c.

1901
1902
1903
1904
1905
1906
1907












1908
1909
1910
1911
1912
1913
1914
....
1959
1960
1961
1962
1963
1964
1965


1966
1967
1968
1969
1970
1971
1972
      return 0;
    }
    pFirst = pFirst->pNext;
  }
  return 1;
}














/*
** This routine is called whenever we encounter a ";" or "=".  The stuff
** between pFirst and pLast constitutes either a typedef or a global
** variable definition.  Do the right thing.
*/
static int ProcessDecl(Token *pFirst, Token *pEnd, int flags){
................................................................................
    }
    if( pFirst==0 || !isLocal ){
      return nErr;
    }
  }else if( flags & PS_Method ){
    /* Methods are declared by their class.  Don't declare separately. */
    return nErr;


  }
  isVar =  (flags & (PS_Typedef|PS_Method))==0 && isVariableDef(pFirst,pEnd);
  if( isVar && (flags & (PS_Interface|PS_Export|PS_Local))!=0
  && (flags & PS_Extern)==0 ){
    fprintf(stderr,"%s:%d: Can't define a variable in this context\n",
      zFilename, pFirst->nLine);
    nErr++;







>
>
>
>
>
>
>
>
>
>
>
>







 







>
>







1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
....
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
      return 0;
    }
    pFirst = pFirst->pNext;
  }
  return 1;
}

/*
** Return TRUE if pFirst is the first token of a static assert.
*/
static int isStaticAssert(Token *pFirst){
  if( (pFirst->nText==13 && strncmp(pFirst->zText, "static_assert", 13)==0)
   || (pFirst->nText==14 && strncmp(pFirst->zText, "_Static_assert", 14)==0)
  ){
    return 1;
  }else{
    return 0;
  }
}

/*
** This routine is called whenever we encounter a ";" or "=".  The stuff
** between pFirst and pLast constitutes either a typedef or a global
** variable definition.  Do the right thing.
*/
static int ProcessDecl(Token *pFirst, Token *pEnd, int flags){
................................................................................
    }
    if( pFirst==0 || !isLocal ){
      return nErr;
    }
  }else if( flags & PS_Method ){
    /* Methods are declared by their class.  Don't declare separately. */
    return nErr;
  }else if( isStaticAssert(pFirst) ){
    return 0;
  }
  isVar =  (flags & (PS_Typedef|PS_Method))==0 && isVariableDef(pFirst,pEnd);
  if( isVar && (flags & (PS_Interface|PS_Export|PS_Local))!=0
  && (flags & PS_Extern)==0 ){
    fprintf(stderr,"%s:%d: Can't define a variable in this context\n",
      zFilename, pFirst->nLine);
    nErr++;

Changes to src/makemake.tcl.

112
113
114
115
116
117
118

119
120
121
122
123
124
125
...
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
  popen
  pqueue
  printf
  publish
  purge
  rebuild
  regexp

  report
  rss
  schema
  search
  security_audit
  setup
  setupuser
................................................................................
  -DSQLITE_OMIT_LOAD_EXTENSION
  -DSQLITE_MAX_EXPR_DEPTH=0
  -DSQLITE_USE_ALLOCA
  -DSQLITE_ENABLE_LOCKING_STYLE=0
  -DSQLITE_DEFAULT_FILE_FORMAT=4
  -DSQLITE_ENABLE_EXPLAIN_COMMENTS
  -DSQLITE_ENABLE_FTS4
  -DSQLITE_ENABLE_FTS3_PARENTHESIS
  -DSQLITE_ENABLE_DBSTAT_VTAB
  -DSQLITE_ENABLE_JSON1
  -DSQLITE_ENABLE_FTS5
  -DSQLITE_ENABLE_STMTVTAB
  -DSQLITE_HAVE_ZLIB
  -DSQLITE_INTROSPECTION_PRAGMAS
  -DSQLITE_ENABLE_DBPAGE_VTAB







>







 







<







112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
...
191
192
193
194
195
196
197

198
199
200
201
202
203
204
  popen
  pqueue
  printf
  publish
  purge
  rebuild
  regexp
  repolist
  report
  rss
  schema
  search
  security_audit
  setup
  setupuser
................................................................................
  -DSQLITE_OMIT_LOAD_EXTENSION
  -DSQLITE_MAX_EXPR_DEPTH=0
  -DSQLITE_USE_ALLOCA
  -DSQLITE_ENABLE_LOCKING_STYLE=0
  -DSQLITE_DEFAULT_FILE_FORMAT=4
  -DSQLITE_ENABLE_EXPLAIN_COMMENTS
  -DSQLITE_ENABLE_FTS4

  -DSQLITE_ENABLE_DBSTAT_VTAB
  -DSQLITE_ENABLE_JSON1
  -DSQLITE_ENABLE_FTS5
  -DSQLITE_ENABLE_STMTVTAB
  -DSQLITE_HAVE_ZLIB
  -DSQLITE_INTROSPECTION_PRAGMAS
  -DSQLITE_ENABLE_DBPAGE_VTAB

Changes to src/manifest.c.

2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
    char *zFType;
    char *zTitle;
    schema_forum();
    froot = p->zThreadRoot ? uuid_to_rid(p->zThreadRoot, 1) : rid;
    fprev = p->nParent ? uuid_to_rid(p->azParent[0],1) : 0;
    firt = p->zInReplyTo ? uuid_to_rid(p->zInReplyTo,1) : 0;
    db_multi_exec(
      "INSERT INTO forumpost(fpid,froot,fprev,firt,fmtime)"
      "VALUES(%d,%d,nullif(%d,0),nullif(%d,0),%.17g)",
      p->rid, froot, fprev, firt, p->rDate
    );
    if( firt==0 ){
      /* This is the start of a new thread, either the initial entry
      ** or an edit of the initial entry. */
      zTitle = p->zThreadTitle;







|







2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
    char *zFType;
    char *zTitle;
    schema_forum();
    froot = p->zThreadRoot ? uuid_to_rid(p->zThreadRoot, 1) : rid;
    fprev = p->nParent ? uuid_to_rid(p->azParent[0],1) : 0;
    firt = p->zInReplyTo ? uuid_to_rid(p->zInReplyTo,1) : 0;
    db_multi_exec(
      "REPLACE INTO forumpost(fpid,froot,fprev,firt,fmtime)"
      "VALUES(%d,%d,nullif(%d,0),nullif(%d,0),%.17g)",
      p->rid, froot, fprev, firt, p->rDate
    );
    if( firt==0 ){
      /* This is the start of a new thread, either the initial entry
      ** or an edit of the initial entry. */
      zTitle = p->zThreadTitle;

Changes to src/markdown.md.

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> 1.  **\[display text\]\(URL\)**
> 2.  **\[display text\]\(URL "Title"\)**
> 3.  **\[display text\]\(URL 'Title'\)**
> 4.  **\<URL\>**
> 5.  **\[display text\]\[label\]**
> 6.  **\[display text\]\[\]**


> **URL** may optionally be written **\<URL\>**.  With link formats 5 and 6
> ("reference links"), the URL is supplied elsewhere in the document, as shown
> below.  Link format 6 reuses the display text as the label.  Labels are
> case-insensitive.  The title may be split onto the next line with optional
> indenting.

> * **\[label\]:&nbsp;URL**
> * **\[label\]:&nbsp;URL&nbsp;"Title"**
> * **\[label\]:&nbsp;URL&nbsp;'Title'**
> * **\[label\]:&nbsp;URL&nbsp;(Title)**







>

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> 1.  **\[display text\]\(URL\)**
> 2.  **\[display text\]\(URL "Title"\)**
> 3.  **\[display text\]\(URL 'Title'\)**
> 4.  **\<URL\>**
> 5.  **\[display text\]\[label\]**
> 6.  **\[display text\]\[\]**
> 7.  **\[display text\]**

> **URL** may optionally be written **\<URL\>**.  With link formats 5, 6, and 7
> ("reference links"), the URL is supplied elsewhere in the document, as shown
> below.  Link formats 6 and 7 reuse the display text as the label.  Labels are
> case-insensitive.  The title may be split onto the next line with optional
> indenting.

> * **\[label\]:&nbsp;URL**
> * **\[label\]:&nbsp;URL&nbsp;"Title"**
> * **\[label\]:&nbsp;URL&nbsp;'Title'**
> * **\[label\]:&nbsp;URL&nbsp;(Title)**

Changes to src/path.c.

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PathNode *path_midpoint(void){
  PathNode *p;
  int i;
  if( path.nStep<2 ) return 0;
  for(p=path.pEnd, i=0; p && i<path.nStep/2; p=p->pFrom, i++){}
  return p;
}











/*
** Compute the shortest path between two check-ins and then transfer
** that path into the "ancestor" table.  This is a utility used by
** both /annotate and /finfo.  See also: compute_direct_ancestors().
*/
void path_shortest_stored_in_ancestor_table(







>
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PathNode *path_midpoint(void){
  PathNode *p;
  int i;
  if( path.nStep<2 ) return 0;
  for(p=path.pEnd, i=0; p && i<path.nStep/2; p=p->pFrom, i++){}
  return p;
}

/*
** Return an estimate of the number of comparisons remaining in order
** to bisect path.  This is based on the log2() of path.nStep.
*/
int path_search_depth(void){
  int i, j;
  for(i=0, j=1; j<path.nStep; i++, j+=j){}
  return i;
}

/*
** Compute the shortest path between two check-ins and then transfer
** that path into the "ancestor" table.  This is a utility used by
** both /annotate and /finfo.  See also: compute_direct_ancestors().
*/
void path_shortest_stored_in_ancestor_table(

Changes to src/printf.c.

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  }else{
    out = fossil_fopen(g.zErrlog, "a");
    if( out==0 ) return;
  }
  now = time(0);
  pNow = gmtime(&now);
  fprintf(out, "------------- %04d-%02d-%02d %02d:%02d:%02d UTC ------------\n",
          pNow->tm_year+1900, pNow->tm_mon+1, pNow->tm_mday+1,
          pNow->tm_hour, pNow->tm_min, pNow->tm_sec);
  va_start(ap, zFormat);
  vfprintf(out, zFormat, ap);
  fprintf(out, "\n");
  va_end(ap);
  for(i=0; i<count(azEnv); i++){
    char *p;







|







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  }else{
    out = fossil_fopen(g.zErrlog, "a");
    if( out==0 ) return;
  }
  now = time(0);
  pNow = gmtime(&now);
  fprintf(out, "------------- %04d-%02d-%02d %02d:%02d:%02d UTC ------------\n",
          pNow->tm_year+1900, pNow->tm_mon+1, pNow->tm_mday,
          pNow->tm_hour, pNow->tm_min, pNow->tm_sec);
  va_start(ap, zFormat);
  vfprintf(out, zFormat, ap);
  fprintf(out, "\n");
  va_end(ap);
  for(i=0; i<count(azEnv); i++){
    char *p;

Changes to src/regexp.c.

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**   http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file was adapted from the test_regexp.c file in SQLite3.  That
** file is in the public domain.
**
** The code in this file implements a compact but reasonably
** efficient regular-expression matcher for posix extended regular
** expressions against UTF8 text.  The following syntax is supported:
**
**     X*      zero or more occurrences of X
**     X+      one or more occurrences of X
**     X?      zero or one occurrences of X
**     X{p,q}  between p and q occurrences of X
**     (X)     match X
**     X|Y     X or Y
**     ^X      X occurring at the beginning of the string
**     X$      X occurring at the end of the string
**     .       Match any single character
**     \c      Character c where c is one of \{}()[]|*+?.
**     \c      C-language escapes for c in afnrtv.  ex: \t or \n
**     \uXXXX  Where XXXX is exactly 4 hex digits, unicode value XXXX
**     \xXX    Where XX is exactly 2 hex digits, unicode value XX
**     [abc]   Any single character from the set abc
**     [^abc]  Any single character not in the set abc
**     [a-z]   Any single character in the range a-z
**     [^a-z]  Any single character not in the range a-z
**     \b      Word boundary
**     \w      Word character.  [A-Za-z0-9_]
**     \W      Non-word character
**     \d      Digit
**     \D      Non-digit
**     \s      Whitespace character
**     \S      Non-whitespace character
**
** A nondeterministic finite automaton (NFA) is used for matching, so the
** performance is bounded by O(N*M) where N is the size of the regular
** expression and M is the size of the input string.  The matcher never
** exhibits exponential behavior.  Note that the X{p,q} operator expands
** to p copies of X following by q-p copies of X? and that the size of the
** regular expression in the O(N*M) performance bound is computed after
** this expansion.
*/
#include "config.h"
#include "regexp.h"

/* The end-of-input character */
#define RE_EOF            0    /* End of input */

................................................................................
}

/*
** COMMAND: grep
**
** Usage: %fossil grep [OPTIONS] PATTERN FILENAME
**

** Run grep over all historic version of FILENAME

**
** Options:
**
**     -i|--ignore-case         Ignore case
**     -l|--files-with-matches  Print only filenames that match
**     -v|--verbose             Show each file as it is analyzed
*/
void re_grep_cmd(void){
  u32 flags = 0;
  int bVerbose = 0;
  ReCompiled *pRe;
  const char *zErr;
................................................................................
  Blob fullName;

  if( find_option("ignore-case","i",0)!=0 ) ignoreCase = 1;
  if( find_option("files-with-matches","l",0)!=0 ) flags |= GREP_EXISTS;
  if( find_option("verbose","v",0)!=0 ) bVerbose = 1;
  db_find_and_open_repository(0, 0);
  verify_all_options();
  if( g.argc<3 ){
    usage("REGEXP FILENAME");
  }
  zErr = re_compile(&pRe, g.argv[2], ignoreCase);
  if( zErr ) fossil_fatal("%s", zErr);

  if( file_tree_name(g.argv[3], &fullName, 0, 0) ){
    int fnid = db_int(0, "SELECT fnid FROM filename WHERE name=%Q",







|
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**   http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file was adapted from the test_regexp.c file in SQLite3.  That
** file is in the public domain.
**
** See ../www/grep.md for details of the algorithm and RE dialect.



































*/
#include "config.h"
#include "regexp.h"

/* The end-of-input character */
#define RE_EOF            0    /* End of input */

................................................................................
}

/*
** COMMAND: grep
**
** Usage: %fossil grep [OPTIONS] PATTERN FILENAME
**
** Attempt to match the given POSIX extended regular expression PATTERN
** over all historic versions of FILENAME.  For details of the supported
** RE dialect, see https://fossil-scm.org/fossil/doc/trunk/www/grep.md
**
** Options:
**
**     -i|--ignore-case         Ignore case
**     -l|--files-with-matches  List only checkin ID for versions that match
**     -v|--verbose             Show each file as it is analyzed
*/
void re_grep_cmd(void){
  u32 flags = 0;
  int bVerbose = 0;
  ReCompiled *pRe;
  const char *zErr;
................................................................................
  Blob fullName;

  if( find_option("ignore-case","i",0)!=0 ) ignoreCase = 1;
  if( find_option("files-with-matches","l",0)!=0 ) flags |= GREP_EXISTS;
  if( find_option("verbose","v",0)!=0 ) bVerbose = 1;
  db_find_and_open_repository(0, 0);
  verify_all_options();
  if( g.argc<4 ){
    usage("REGEXP FILENAME");
  }
  zErr = re_compile(&pRe, g.argv[2], ignoreCase);
  if( zErr ) fossil_fatal("%s", zErr);

  if( file_tree_name(g.argv[3], &fullName, 0, 0) ){
    int fnid = db_int(0, "SELECT fnid FROM filename WHERE name=%Q",

Added src/repolist.c.





































































































































































































































































































































































































































































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/*
** Copyright (c) 2018 D. Richard Hipp
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the Simplified BSD License (also
** known as the "2-Clause License" or "FreeBSD License".)
**
** This program is distributed in the hope that it will be useful,
** but without any warranty; without even the implied warranty of
** merchantability or fitness for a particular purpose.
**
** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This module contains code to implement the repository list page when
** "fossil server" or "fossil ui" is serving a directory full of repositories.
*/
#include "config.h"
#include "repolist.h"

#if INTERFACE
/*
** Return value from the remote_repo_info() command.  zRepoName is the
** input.  All other fields are outputs.
*/
struct RepoInfo {
  char *zRepoName;      /* Name of the repository file */
  int isValid;          /* True if zRepoName is a valid Fossil repository */
  char *zProjName;      /* Project Name.  Memory from fossil_malloc() */
  double rMTime;        /* Last update.  Julian day number */
};
#endif

/*
** Discover information about the repository given by
** pRepo->zRepoName.
*/
void remote_repo_info(RepoInfo *pRepo){
  sqlite3 *db;
  sqlite3_stmt *pStmt;
  int rc;

  pRepo->isValid = 0;
  pRepo->zProjName = 0;
  pRepo->rMTime = 0.0;

  rc = sqlite3_open(pRepo->zRepoName, &db);
  if( rc ) return;
  rc = sqlite3_prepare_v2(db, "SELECT value FROM config"
                              " WHERE name='project-name'",
                          -1, &pStmt, 0);
  if( rc ) return;
  if( sqlite3_step(pStmt)==SQLITE_ROW ){
    pRepo->zProjName = fossil_strdup((char*)sqlite3_column_text(pStmt,0));
  }
  sqlite3_finalize(pStmt);
  rc = sqlite3_prepare_v2(db, "SELECT max(mtime) FROM event", -1, &pStmt, 0);
  if( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
    pRepo->rMTime = sqlite3_column_double(pStmt,0);
  }
  sqlite3_finalize(pStmt);
  sqlite3_close(db);
  pRepo->isValid = 1;
}

/*
** Generate a web-page that lists all repositories located under the
** g.zRepositoryName directory and return non-zero.
**
** For the special case when g.zRepositoryName is a non-chroot-jail "/",
** compose the list using the "repo:" entries in the global_config
** table of the configuration database.  These entries comprise all
** of the repositories known to the "all" command.  The special case
** processing is disallowed for chroot jails because g.zRepositoryName
** is always "/" inside a chroot jail and so it cannot be used as a flag
** to signal the special processing in that case.  The special case
** processing is intended for the "fossil all ui" command which never
** runs in a chroot jail anyhow.
**
** Or, if no repositories can be located beneath g.zRepositoryName,
** return 0.
*/
int repo_list_page(void){
  Blob base;
  int n = 0;
  int allRepo;

  assert( g.db==0 );
  if( fossil_strcmp(g.zRepositoryName,"/")==0 && !g.fJail ){
    /* For the special case of the "repository directory" being "/",
    ** show all of the repositories named in the ~/.fossil database.
    **
    ** On unix systems, then entries are of the form "repo:/home/..."
    ** and on Windows systems they are like on unix, starting with a "/"
    ** or they can begin with a drive letter: "repo:C:/Users/...".  In either
    ** case, we want returned path to omit any initial "/".
    */
    db_open_config(1, 0);
    db_multi_exec(
       "CREATE TEMP VIEW sfile AS"
       "  SELECT ltrim(substr(name,6),'/') AS 'pathname' FROM global_config"
       "   WHERE name GLOB 'repo:*'"
    );
    allRepo = 1;
  }else{
    /* The default case:  All repositories under the g.zRepositoryName
    ** directory.
    */
    blob_init(&base, g.zRepositoryName, -1);
    sqlite3_open(":memory:", &g.db);
    db_multi_exec("CREATE TABLE sfile(pathname TEXT);");
    db_multi_exec("CREATE TABLE vfile(pathname);");
    vfile_scan(&base, blob_size(&base), 0, 0, 0);
    db_multi_exec("DELETE FROM sfile WHERE pathname NOT GLOB '*[^/].fossil'");
    allRepo = 0;
  }
  @ <html>
  @ <head>
  @ <base href="%s(g.zBaseURL)/" />
  @ <meta name="viewport" content="width=device-width, initial-scale=1.0">
  @ <title>Repository List</title>
  @ </head>
  @ <body>
  n = db_int(0, "SELECT count(*) FROM sfile");
  if( n>0 ){
    Stmt q;
    double rNow;
    @ <h1 align="center">Fossil Repositories</h1>
    @ <table border="0" class="sortable" data-init-sort="1" \
    @ data-column-types="tntnk"><thead>
    @ <tr><th>Filename<th width="20">\
    @ <th>Project Name<th width="20">\
    @ <th>Last Modified</tr>
    @ </thead><tbody>
    db_prepare(&q, "SELECT pathname"
                   " FROM sfile ORDER BY pathname COLLATE nocase;");
    rNow = db_double(0, "SELECT julianday('now')");
    while( db_step(&q)==SQLITE_ROW ){
      const char *zName = db_column_text(&q, 0);
      int nName = (int)strlen(zName);
      char *zUrl;
      char *zAge;
      char *zFull;
      RepoInfo x;
      int iAge;
      if( nName<7 ) continue;
      zUrl = sqlite3_mprintf("%.*s", nName-7, zName);
      if( zName[0]=='/'
#ifdef _WIN32
          || sqlite3_strglob("[a-zA-Z]:/*", zName)==0
#endif
      ){
        zFull = mprintf("%s", zName);
      }else if ( allRepo ){
        zFull = mprintf("/%s", zName);
      }else{
        zFull = mprintf("%s/%s", g.zRepositoryName, zName);
      }
      x.zRepoName = zFull;
      remote_repo_info(&x);
      fossil_free(zFull);
      if( !x.isValid ){
        zAge = mprintf("...");
        iAge = 0;
      }else{
        iAge = (rNow - x.rMTime)*86400;
        if( iAge<0 ) x.rMTime = rNow;
        zAge = human_readable_age(rNow - x.rMTime);
      }
      @ <tr><td valign="top">\
      if( sqlite3_strglob("*.fossil", zName)!=0 ){
        /* The "fossil server DIRECTORY" and "fossil ui DIRECTORY" commands
        ** do not work for repositories whose names do not end in ".fossil".
        ** So do not hyperlink those cases. */
        @ %h(zName)
      } else if( sqlite3_strglob("*/.*", zName)==0 ){
        /* Do not show hidden repos */
        @ %h(zName) (hidden)
      } else if( allRepo && sqlite3_strglob("[a-zA-Z]:/?*", zName)!=0 ){
        @ <a href="%R/%T(zUrl)/home" target="_blank">/%h(zName)</a>
      }else{
        @ <a href="%R/%T(zUrl)/home" target="_blank">%h(zName)</a>
      }
      if( x.zProjName ){
        @ <td></td><td>%h(x.zProjName)</td>
        fossil_free(x.zProjName);
      }else{
        @ <td></td><td></td>
      }
      @ <td></td><td data-sortkey='%08x(iAge)'>%h(zAge)</tr>
      fossil_free(zAge);
      sqlite3_free(zUrl);
    }
    @ </tbody></table>
  }else{
    @ <h1>No Repositories Found</h1>
  }
  @ <script>%s(builtin_text("sorttable.js"))</script>
  @ </body>
  @ </html>
  cgi_reply();
  sqlite3_close(g.db);
  g.db = 0;
  return n;
}

/*
** COMMAND: test-list-page
**
** Usage: %fossil test-list-page DIRECTORY
**
** Show all repositories underneath DIRECTORY.  Or if DIRECTORY is "/"
** show all repositories in the ~/.fossil file.
*/
void test_list_page(void){
  if( g.argc<3 ){
    g.zRepositoryName = "/";
  }else{
    g.zRepositoryName = g.argv[2];
  }
  g.httpOut = stdout;
  repo_list_page();
}

Changes to src/security_audit.c.

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**
** Run a security audit of the current Fossil setup.
** This page requires administrator access
*/
void secaudit0_page(void){
  const char *zAnonCap;      /* Capabilities of user "anonymous" and "nobody" */
  const char *zPubPages;     /* GLOB pattern for public pages */

  char *z;
  int n;

  login_check_credentials();
  if( !g.perm.Setup && !g.perm.Admin ){
    login_needed(0);
    return;
................................................................................
  /* Step 1:  Determine if the repository is public or private.  "Public"
  ** means that any anonymous user on the internet can access all content.
  ** "Private" repos require (non-anonymous) login to access all content,
  ** though some content may be accessible anonymously.
  */
  zAnonCap = db_text("", "SELECT fullcap(NULL)");
  zPubPages = db_get("public-pages",0);









  if( hasAnyCap(zAnonCap,"as") ){
    @ <li><p>This repository is <big><b>Wildly INSECURE</b></big> because
    @ it grants administrator privileges to anonymous users.  You
    @ should <a href="takeitprivate">take this repository private</a>
    @ immediately!  Or, at least remove the Setup and Admin privileges
    @ for users "anonymous" and "login" on the
    @ <a href="setup_ulist">User Configuration</a> page.







  }else if( hasAnyCap(zAnonCap,"y") ){
    @ <li><p>This repository is <big><b>INSECURE</b></big> because
    @ it allows anonymous users to push unversioned files.
    @ <p>Fix this by <a href="takeitprivate">taking the repository private</a>
    @ or by removing the "y" permission from users "anonymous" and
    @ "nobody" on the <a href="setup_ulist">User Configuration</a> page.






  }else if( hasAnyCap(zAnonCap,"goz") ){
    @ <li><p>This repository is <big><b>PUBLIC</b></big>. All
    @ checked-in content can be accessed by anonymous users.
    @ <a href="takeitprivate">Take it private</a>.<p>




  }else if( !hasAnyCap(zAnonCap, "jrwy234567")

         && (zPubPages==0 || zPubPages[0]==0) ){
    @ <li><p>This repository is <big><b>Completely PRIVATE</b></big>.
    @ A valid login and password is required to access any content.
  }else{
    @ <li><p>This repository is <big><b>Mostly PRIVATE</b></big>.
    @ A valid login and password is usually required, however some
    @ content can be accessed anonymously:

    @ <ul>
    if( hasAnyCap(zAnonCap,"j") ){
      @ <li> Wiki pages
    }
    if( hasAnyCap(zAnonCap,"r") ){
      @ <li> Tickets
    }
    if( hasAnyCap(zAnonCap,"234567") ){
      @ <li> Forum posts
    }
    if( zPubPages && zPubPages[0] ){
      Glob *pGlob = glob_create(zPubPages);
      int i;
      @ <li> URLs that match any of these GLOB patterns:
      @ <ul>
................................................................................
  }
  if( P("apply") ){
    db_multi_exec(
      "UPDATE user SET cap=''"
      " WHERE login IN ('nobody','anonymous');"
      "DELETE FROM config WHERE name='public-pages';"
    );

    cgi_redirect("secaudit0");
  }
  style_header("Make This Website Private");
  @ <p>Click the "Make It Private" button below to disable all
  @ anonymous access to this repository.  A valid login and password
  @ will be required to access this repository after clicking that
  @ button.</p>







>







 







>
>
>
>
>
>
>
>
>







>
>
>
>
>
>
>






>
>
>
>
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>




>
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>






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>

|


|


|







 







>







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...
451
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**
** Run a security audit of the current Fossil setup.
** This page requires administrator access
*/
void secaudit0_page(void){
  const char *zAnonCap;      /* Capabilities of user "anonymous" and "nobody" */
  const char *zPubPages;     /* GLOB pattern for public pages */
  const char *zSelfCap;      /* Capabilities of self-registered users */
  char *z;
  int n;

  login_check_credentials();
  if( !g.perm.Setup && !g.perm.Admin ){
    login_needed(0);
    return;
................................................................................
  /* Step 1:  Determine if the repository is public or private.  "Public"
  ** means that any anonymous user on the internet can access all content.
  ** "Private" repos require (non-anonymous) login to access all content,
  ** though some content may be accessible anonymously.
  */
  zAnonCap = db_text("", "SELECT fullcap(NULL)");
  zPubPages = db_get("public-pages",0);
  if( db_get_boolean("self-register",0) ){
    CapabilityString *pCap;
    pCap = capability_add(0, db_get("default-perms",""));
    capability_expand(pCap);
    zSelfCap = capability_string(pCap);
    capability_free(pCap);
  }else{
    zSelfCap = fossil_strdup("");
  }
  if( hasAnyCap(zAnonCap,"as") ){
    @ <li><p>This repository is <big><b>Wildly INSECURE</b></big> because
    @ it grants administrator privileges to anonymous users.  You
    @ should <a href="takeitprivate">take this repository private</a>
    @ immediately!  Or, at least remove the Setup and Admin privileges
    @ for users "anonymous" and "login" on the
    @ <a href="setup_ulist">User Configuration</a> page.
  }else if( hasAnyCap(zSelfCap,"as") ){
    @ <li><p>This repository is <big><b>Wildly INSECURE</b></big> because
    @ it grants administrator privileges to self-registered users.  You
    @ should <a href="takeitprivate">take this repository private</a>
    @ and/or disable self-registration
    @ immediately!  Or, at least remove the Setup and Admin privileges
    @ from the default permissions for new users.
  }else if( hasAnyCap(zAnonCap,"y") ){
    @ <li><p>This repository is <big><b>INSECURE</b></big> because
    @ it allows anonymous users to push unversioned files.
    @ <p>Fix this by <a href="takeitprivate">taking the repository private</a>
    @ or by removing the "y" permission from users "anonymous" and
    @ "nobody" on the <a href="setup_ulist">User Configuration</a> page.
  }else if( hasAnyCap(zSelfCap,"y") ){
    @ <li><p>This repository is <big><b>INSECURE</b></big> because
    @ it allows self-registered users to push unversioned files.
    @ <p>Fix this by <a href="takeitprivate">taking the repository private</a>
    @ or by removing the "y" permission from the default permissions or
    @ by disabling self-registration.
  }else if( hasAnyCap(zAnonCap,"goz") ){
    @ <li><p>This repository is <big><b>PUBLIC</b></big>. All
    @ checked-in content can be accessed by anonymous users.
    @ <a href="takeitprivate">Take it private</a>.<p>
  }else if( hasAnyCap(zSelfCap,"goz") ){
    @ <li><p>This repository is <big><b>PUBLIC</b></big> because all
    @ checked-in content can be accessed by self-registered users.
    @ This repostory would be private if you disabled self-registration.</p>
  }else if( !hasAnyCap(zAnonCap, "jrwy234567")
         && !hasAnyCap(zSelfCap, "jrwy234567")
         && (zPubPages==0 || zPubPages[0]==0) ){
    @ <li><p>This repository is <big><b>Completely PRIVATE</b></big>.
    @ A valid login and password is required to access any content.
  }else{
    @ <li><p>This repository is <big><b>Mostly PRIVATE</b></big>.
    @ A valid login and password is usually required, however some
    @ content can be accessed either anonymously or by self-registered
    @ users:
    @ <ul>
    if( hasAnyCap(zAnonCap,"j") || hasAnyCap(zSelfCap,"j") ){
      @ <li> Wiki pages
    }
    if( hasAnyCap(zAnonCap,"r") || hasAnyCap(zSelfCap,"r") ){
      @ <li> Tickets
    }
    if( hasAnyCap(zAnonCap,"234567") || hasAnyCap(zSelfCap,"234567") ){
      @ <li> Forum posts
    }
    if( zPubPages && zPubPages[0] ){
      Glob *pGlob = glob_create(zPubPages);
      int i;
      @ <li> URLs that match any of these GLOB patterns:
      @ <ul>
................................................................................
  }
  if( P("apply") ){
    db_multi_exec(
      "UPDATE user SET cap=''"
      " WHERE login IN ('nobody','anonymous');"
      "DELETE FROM config WHERE name='public-pages';"
    );
    db_set("self-register","0",0);
    cgi_redirect("secaudit0");
  }
  style_header("Make This Website Private");
  @ <p>Click the "Make It Private" button below to disable all
  @ anonymous access to this repository.  A valid login and password
  @ will be required to access this repository after clicking that
  @ button.</p>

Changes to src/setupuser.c.

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97
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103

  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }

  if( zWith==0 || zWith[0]==0 ){
    style_submenu_element("Add", "setup_uedit");
    style_submenu_element("Log", "access_log");
    style_submenu_element("Help", "setup_ulist_notes");
    style_header("User List");

    @ <table border=1 cellpadding=2 cellspacing=0 class='userTable'>
    @ <thead><tr>
    @   <th>Category
    @   <th>Capabilities (<a href='%R/setup_ucap_list'>key</a>)
    @   <th>Info <th>Last Change</tr></thead>
    @ <tbody>
    db_prepare(&s,
................................................................................
        @ <td>%h(zDate)
      }else{
        @ <td>
      }
      @ </tr>
    }
    db_finalize(&s);
  }else{
    style_header("Users With Capabilities \"%h\"", zWith);
  }
  @ </tbody></table>
  @ <div class='section'>Users</div>








  @ <table border=1 cellpadding=2 cellspacing=0 class='userTable sortable' \
  @  data-column-types='ktxTTK' data-init-sort='2'>
  @ <thead><tr>
  @ <th>Login Name<th>Caps<th>Info<th>Date<th>Expire<th>Last Login</tr></thead>
  @ <tbody>
  db_multi_exec(
    "CREATE TEMP TABLE lastAccess(uname TEXT PRIMARY KEY, atime REAL)"







<
|
|
|
|
>







 







<
<
<
|
|
>
>
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>
>







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108

  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }


  style_submenu_element("Add", "setup_uedit");
  style_submenu_element("Log", "access_log");
  style_submenu_element("Help", "setup_ulist_notes");
  style_header("User List");
  if( zWith==0 || zWith[0]==0 ){
    @ <table border=1 cellpadding=2 cellspacing=0 class='userTable'>
    @ <thead><tr>
    @   <th>Category
    @   <th>Capabilities (<a href='%R/setup_ucap_list'>key</a>)
    @   <th>Info <th>Last Change</tr></thead>
    @ <tbody>
    db_prepare(&s,
................................................................................
        @ <td>%h(zDate)
      }else{
        @ <td>
      }
      @ </tr>
    }
    db_finalize(&s);



    @ </tbody></table>
    @ <div class='section'>Users</div>
  }else{
    style_submenu_element("All Users", "setup_ulist");
    if( zWith[1]==0 ){
      @ <div class='section'>Users with capability "%h(zWith)"</div>
    }else{
      @ <div class='section'>Users with any capability in "%h(zWith)"</div>
    }
  }
  @ <table border=1 cellpadding=2 cellspacing=0 class='userTable sortable' \
  @  data-column-types='ktxTTK' data-init-sort='2'>
  @ <thead><tr>
  @ <th>Login Name<th>Caps<th>Info<th>Date<th>Expire<th>Last Login</tr></thead>
  @ <tbody>
  db_multi_exec(
    "CREATE TEMP TABLE lastAccess(uname TEXT PRIMARY KEY, atime REAL)"

Changes to src/shell.c.

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1314
1315
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1317
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1319
1320
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1322
1323
1324
1325
1326
1327
....
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2911
2912
2913

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2919
2920
....
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3417
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3419
3420
3421

3422
3423
3424
3425
3426
3427
3428
....
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7133
7134
7135
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7138

7139
7140
7141
7142
7143
7144
7145
....
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8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567

8568
8569
8570
8571
8572
8573
8574
....
8770
8771
8772
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783
8784
.....
10832
10833
10834
10835
10836
10837
10838
10839






10840
10841

10842
10843

















10844
10845
10846
10847
10848
10849

10850
10851
10852
10853
10854
10855
10856
10857
10858
10859
10860
10861




10862
10863
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10865

10866
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10872

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10902


10903
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10905
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10908

10909
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10918
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10920




10921
10922












10923
10924







10925
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10927
10928
10929
10930
10931
10932
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10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944

10945
10946
10947
10948
10949







10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965









10966






10967
10968
10969









































10970
10971
10972
10973
10974
10975
10976
.....
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003
11004
11005
11006
.....
11072
11073
11074
11075
11076
11077
11078





11079
11080
11081
11082
11083
11084
11085
.....
11122
11123
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11125
11126
11127
11128




11129
11130
11131
11132
11133
11134
11135
.....
11172
11173
11174
11175
11176
11177
11178












11179
11180
11181
11182
11183
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11185
.....
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12377
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12379
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12381
12382

12383
12384
12385
12386
12387
12388
12389
.....
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12441
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12447
12448
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12453
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12461
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12463
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12467
12468
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12471
12472
12473
12474
12475
12476
12477
.....
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12579
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12582
12583
.....
13341
13342
13343
13344
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13346
13347
13348



13349
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13353
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13355
13356

13357
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13359
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13362
13363
.....
13588
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13593
13594



13595




13596
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13599
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13601
13602
.....
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.....
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.....
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16285
16286
16287
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16291



16292
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16296
16297
16298
16299
16300
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
******************************************************************************
**
** This SQLite extension implements a functions that compute SHA1 hashes.
** Two SQL functions are implemented:
**
**     sha3(X,SIZE)
**     sha3_query(Y,SIZE)
**
** The sha3(X) function computes the SHA3 hash of the input X, or NULL if
** X is NULL.
................................................................................
    0,                         /* xSync */
    0,                         /* xCommit */
    0,                         /* xRollback */
    0,                         /* xFindMethod */
    0,                         /* xRename */
    0,                         /* xSavepoint */
    0,                         /* xRelease */
    0                          /* xRollbackTo */

  };

  int rc = sqlite3_create_module(db, "fsdir", &fsdirModule, 0);
  return rc;
}
#else         /* SQLITE_OMIT_VIRTUALTABLE */
# define fsdirRegister(x) SQLITE_OK
................................................................................
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0                          /* xRollbackTo */

};

#endif /* SQLITE_OMIT_VIRTUALTABLE */

int sqlite3CompletionVtabInit(sqlite3 *db){
  int rc = SQLITE_OK;
#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
    0,                            /* xCommit - commit transaction */
    0,                            /* xRollback - rollback transaction */
    0,                            /* xFindFunction - function overloading */
    0,                            /* xRename - rename the table */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0,                            /* xRollbackTo */

  };

  return sqlite3_create_module(p->dbv, "expert", &expertModule, (void*)p);
}
/*
** End of virtual table implementation.
*************************************************************************/
................................................................................
#define AUTOEQP_off      0           /* Automatic EXPLAIN QUERY PLAN is off */
#define AUTOEQP_on       1           /* Automatic EQP is on */
#define AUTOEQP_trigger  2           /* On and also show plans for triggers */
#define AUTOEQP_full     3           /* Show full EXPLAIN */

/* Allowed values for ShellState.openMode
*/
#define SHELL_OPEN_UNSPEC     0      /* No open-mode specified */
#define SHELL_OPEN_NORMAL     1      /* Normal database file */
#define SHELL_OPEN_APPENDVFS  2      /* Use appendvfs */
#define SHELL_OPEN_ZIPFILE    3      /* Use the zipfile virtual table */
#define SHELL_OPEN_READONLY   4      /* Open a normal database read-only */


/*
** These are the allowed shellFlgs values
*/
#define SHFLG_Pagecache      0x00000001 /* The --pagecache option is used */
#define SHFLG_Lookaside      0x00000002 /* Lookaside memory is used */
#define SHFLG_Backslash      0x00000004 /* The --backslash option is used */
................................................................................
  if( x!=sz ){
    sqlite3_result_error(context, "could not read back the whole file", -1);
    goto edit_func_end;
  }
  if( bBin ){
    sqlite3_result_blob64(context, p, sz, sqlite3_free);
  }else{
    int i, j;
    if( hasCRNL ){
      /* If the original contains \r\n then do no conversions back to \n */
      j = sz;
    }else{
      /* If the file did not originally contain \r\n then convert any new
      ** \r\n back into \n */
      for(i=j=0; i<sz; i++){
................................................................................
    sqlite3_free(zErr);
    free(zQ2);
  }
  return rc;
}

/*
** Text of a help message






*/
static char zHelp[] =

#if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE)
  ".archive ...           Manage SQL archives: \".archive --help\" for details\n"

















#endif
#ifndef SQLITE_OMIT_AUTHORIZATION
  ".auth ON|OFF           Show authorizer callbacks\n"
#endif
  ".backup ?DB? FILE      Backup DB (default \"main\") to FILE\n"
  "                         Add \"--append\" to open using appendvfs.\n"

  ".bail on|off           Stop after hitting an error.  Default OFF\n"
  ".binary on|off         Turn binary output on or off.  Default OFF\n"
  ".cd DIRECTORY          Change the working directory to DIRECTORY\n"
  ".changes on|off        Show number of rows changed by SQL\n"
  ".check GLOB            Fail if output since .testcase does not match\n"
  ".clone NEWDB           Clone data into NEWDB from the existing database\n"
  ".databases             List names and files of attached databases\n"
  ".dbconfig ?op? ?val?   List or change sqlite3_db_config() options\n"
  ".dbinfo ?DB?           Show status information about the database\n"
  ".dump ?TABLE? ...      Dump the database in an SQL text format\n"
  "                         If TABLE specified, only dump tables matching\n"
  "                         LIKE pattern TABLE.\n"




  ".echo on|off           Turn command echo on or off\n"
  ".eqp on|off|full       Enable or disable automatic EXPLAIN QUERY PLAN\n"
  ".excel                 Display the output of next command in a spreadsheet\n"
  ".exit                  Exit this program\n"

  ".expert                EXPERIMENTAL. Suggest indexes for specified queries\n"
/* Because explain mode comes on automatically now, the ".explain" mode
** is removed from the help screen.  It is still supported for legacy, however */
/*".explain ?on|off|auto? Turn EXPLAIN output mode on or off or to automatic\n"*/
  ".fullschema ?--indent? Show schema and the content of sqlite_stat tables\n"
  ".headers on|off        Turn display of headers on or off\n"
  ".help                  Show this message\n"

  ".import FILE TABLE     Import data from FILE into TABLE\n"
#ifndef SQLITE_OMIT_TEST_CONTROL
  ".imposter INDEX TABLE  Create imposter table TABLE on index INDEX\n"
#endif
  ".indexes ?TABLE?       Show names of all indexes\n"
  "                         If TABLE specified, only show indexes for tables\n"
  "                         matching LIKE pattern TABLE.\n"
#ifdef SQLITE_ENABLE_IOTRACE
  ".iotrace FILE          Enable I/O diagnostic logging to FILE\n"
#endif
  ".limit ?LIMIT? ?VAL?   Display or change the value of an SQLITE_LIMIT\n"
  ".lint OPTIONS          Report potential schema issues. Options:\n"

  "                         fkey-indexes     Find missing foreign key indexes\n"
#ifndef SQLITE_OMIT_LOAD_EXTENSION
  ".load FILE ?ENTRY?     Load an extension library\n"
#endif
  ".log FILE|off          Turn logging on or off.  FILE can be stderr/stdout\n"
  ".mode MODE ?TABLE?     Set output mode where MODE is one of:\n"

  "                         ascii    Columns/rows delimited by 0x1F and 0x1E\n"
  "                         csv      Comma-separated values\n"
  "                         column   Left-aligned columns.  (See .width)\n"
  "                         html     HTML <table> code\n"
  "                         insert   SQL insert statements for TABLE\n"
  "                         line     One value per line\n"
  "                         list     Values delimited by \"|\"\n"
  "                         quote    Escape answers as for SQL\n"
  "                         tabs     Tab-separated values\n"
  "                         tcl      TCL list elements\n"
  ".nullvalue STRING      Use STRING in place of NULL values\n"
  ".once (-e|-x|FILE)     Output for the next SQL command only to FILE\n"


  "                         or invoke system text editor (-e) or spreadsheet (-x)\n"
  "                         on the output.\n"

  ".open ?OPTIONS? ?FILE? Close existing database and reopen FILE\n"
  "                         The --new option starts with an empty file\n"
  "                         Other options: --readonly --append --zip\n"








  ".output ?FILE?         Send output to FILE or stdout\n"

  ".print STRING...       Print literal STRING\n"
  ".prompt MAIN CONTINUE  Replace the standard prompts\n"
  ".quit                  Exit this program\n"
  ".read FILENAME         Execute SQL in FILENAME\n"

  ".restore ?DB? FILE     Restore content of DB (default \"main\") from FILE\n"
  ".save FILE             Write in-memory database into FILE\n"
  ".scanstats on|off      Turn sqlite3_stmt_scanstatus() metrics on or off\n"
  ".schema ?PATTERN?      Show the CREATE statements matching PATTERN\n"
  "                          Add --indent for pretty-printing\n"


  ".selftest ?--init?     Run tests defined in the SELFTEST table\n"
  ".separator COL ?ROW?   Change the column separator and optionally the row\n"
  "                         separator for both the output mode and .import\n"




#if defined(SQLITE_ENABLE_SESSION)
  ".session CMD ...       Create or control sessions\n"












#endif
  ".sha3sum ?OPTIONS...?  Compute a SHA3 hash of database content\n"







#ifndef SQLITE_NOHAVE_SYSTEM
  ".shell CMD ARGS...     Run CMD ARGS... in a system shell\n"
#endif
  ".show                  Show the current values for various settings\n"
  ".stats ?on|off?        Show stats or turn stats on or off\n"
#ifndef SQLITE_NOHAVE_SYSTEM
  ".system CMD ARGS...    Run CMD ARGS... in a system shell\n"
#endif
  ".tables ?TABLE?        List names of tables\n"
  "                         If TABLE specified, only list tables matching\n"
  "                         LIKE pattern TABLE.\n"
  ".testcase NAME         Begin redirecting output to 'testcase-out.txt'\n"
  ".timeout MS            Try opening locked tables for MS milliseconds\n"
  ".timer on|off          Turn SQL timer on or off\n"
  ".trace FILE|off        Output each SQL statement as it is run\n"
  ".vfsinfo ?AUX?         Information about the top-level VFS\n"
  ".vfslist               List all available VFSes\n"
  ".vfsname ?AUX?         Print the name of the VFS stack\n"
  ".width NUM1 NUM2 ...   Set column widths for \"column\" mode\n"
  "                         Negative values right-justify\n"

;

#if defined(SQLITE_ENABLE_SESSION)
/*
** Print help information for the ".sessions" command







*/
void session_help(ShellState *p){
  raw_printf(p->out,
    ".session ?NAME? SUBCOMMAND ?ARGS...?\n"
    "If ?NAME? is omitted, the first defined session is used.\n"
    "Subcommands:\n"
    "   attach TABLE             Attach TABLE\n"
    "   changeset FILE           Write a changeset into FILE\n"
    "   close                    Close one session\n"
    "   enable ?BOOLEAN?         Set or query the enable bit\n"
    "   filter GLOB...           Reject tables matching GLOBs\n"
    "   indirect ?BOOLEAN?       Mark or query the indirect status\n"
    "   isempty                  Query whether the session is empty\n"
    "   list                     List currently open session names\n"
    "   open DB NAME             Open a new session on DB\n"
    "   patchset FILE            Write a patchset into FILE\n"









  );






}
#endif











































/* Forward reference */
static int process_input(ShellState *p, FILE *in);

/*
** Read the content of file zName into memory obtained from sqlite3_malloc64()
** and return a pointer to the buffer. The caller is responsible for freeing
................................................................................
  size_t nRead;
  char *pBuf;
  if( in==0 ) return 0;
  fseek(in, 0, SEEK_END);
  nIn = ftell(in);
  rewind(in);
  pBuf = sqlite3_malloc64( nIn+1 );
  if( pBuf==0 ) return 0;
  nRead = fread(pBuf, nIn, 1, in);
  fclose(in);
  if( nRead!=1 ){
    sqlite3_free(pBuf);
    return 0;
  }
  pBuf[nIn] = 0;
................................................................................
  if( f==0 ){
    if( dfltZip && sqlite3_strlike("%.zip",zName,0)==0 ){
       return SHELL_OPEN_ZIPFILE;
    }else{
       return SHELL_OPEN_NORMAL;
    }
  }





  fseek(f, -25, SEEK_END);
  n = fread(zBuf, 25, 1, f);
  if( n==1 && memcmp(zBuf, "Start-Of-SQLite3-", 17)==0 ){
    rc = SHELL_OPEN_APPENDVFS;
  }else{
    fseek(f, -22, SEEK_END);
    n = fread(zBuf, 22, 1, f);
................................................................................
      }
    }
    switch( p->openMode ){
      case SHELL_OPEN_APPENDVFS: {
        sqlite3_open_v2(p->zDbFilename, &p->db, 
           SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, "apndvfs");
        break;




      }
      case SHELL_OPEN_ZIPFILE: {
        sqlite3_open(":memory:", &p->db);
        break;
      }
      case SHELL_OPEN_READONLY: {
        sqlite3_open_v2(p->zDbFilename, &p->db, SQLITE_OPEN_READONLY, 0);
................................................................................
#endif
    if( p->openMode==SHELL_OPEN_ZIPFILE ){
      char *zSql = sqlite3_mprintf(
         "CREATE VIRTUAL TABLE zip USING zipfile(%Q);", p->zDbFilename);
      sqlite3_exec(p->db, zSql, 0, 0, 0);
      sqlite3_free(zSql);
    }












  }
}

/*
** Attempt to close the databaes connection.  Report errors.
*/
void close_db(sqlite3 *db){
................................................................................
){
  *ppStmt = 0;
  if( *pRc==SQLITE_OK ){
    va_list ap;
    char *z;
    va_start(ap, zFmt);
    z = sqlite3_vmprintf(zFmt, ap);

    if( z==0 ){
      *pRc = SQLITE_NOMEM;
    }else{
      shellPrepare(db, pRc, z, ppStmt);
      sqlite3_free(z);
    }
  }
................................................................................
  sqlite3 *db;                    /* Database containing the archive */
};

/*
** Print a usage message for the .ar command to stderr and return SQLITE_ERROR.
*/
static int arUsage(FILE *f){
  raw_printf(f,
"\n"
"Usage: .ar [OPTION...] [FILE...]\n"
"The .ar command manages sqlar archives.\n"
"\n"
"Examples:\n"
"  .ar -cf archive.sar foo bar    # Create archive.sar from files foo and bar\n"
"  .ar -tf archive.sar            # List members of archive.sar\n"
"  .ar -xvf archive.sar           # Verbosely extract files from archive.sar\n"
"\n"
"Each command line must feature exactly one command option:\n"
"  -c, --create               Create a new archive\n"
"  -u, --update               Update or add files to an existing archive\n"
"  -t, --list                 List contents of archive\n"
"  -x, --extract              Extract files from archive\n"
"\n"
"And zero or more optional options:\n"
"  -v, --verbose              Print each filename as it is processed\n"
"  -f FILE, --file FILE       Operate on archive FILE (default is current db)\n"
"  -a FILE, --append FILE     Operate on FILE opened using the apndvfs VFS\n"
"  -C DIR, --directory DIR    Change to directory DIR to read/extract files\n"
"  -n, --dryrun               Show the SQL that would have occurred\n"
"\n"
"See also: http://sqlite.org/cli.html#sqlar_archive_support\n"
"\n"
);
  return SQLITE_ERROR;
}

/*
** Print an error message for the .ar command to stderr and return 
** SQLITE_ERROR.
*/
................................................................................
    { "directory", 'C', AR_SWITCH_DIRECTORY, 1 },
    { "dryrun",    'n', AR_SWITCH_DRYRUN,    0 },
  };
  int nSwitch = sizeof(aSwitch) / sizeof(struct ArSwitch);
  struct ArSwitch *pEnd = &aSwitch[nSwitch];

  if( nArg<=1 ){

    return arUsage(stderr);
  }else{
    char *z = azArg[1];
    if( z[0]!='-' ){
      /* Traditional style [tar] invocation */
      int i;
      int iArg = 2;
................................................................................
      utf8_printf(stderr,"Error: %s\n", zErrMsg);
      sqlite3_free(zErrMsg);
      rc = 1;
    }
  }else

  if( c=='d' && n>=3 && strncmp(azArg[0], "dbconfig", n)==0 ){
    static const struct DbConfigChoices {const char *zName; int op;} aDbConfig[] = {



        { "enable_fkey",      SQLITE_DBCONFIG_ENABLE_FKEY            },
        { "enable_trigger",   SQLITE_DBCONFIG_ENABLE_TRIGGER         },
        { "fts3_tokenizer",   SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER  },
        { "load_extension",   SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION  },
        { "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE       },
        { "enable_qpsg",      SQLITE_DBCONFIG_ENABLE_QPSG            },
        { "trigger_eqp",      SQLITE_DBCONFIG_TRIGGER_EQP            },
        { "reset_database",   SQLITE_DBCONFIG_RESET_DATABASE         },

    };
    int ii, v;
    open_db(p, 0);
    for(ii=0; ii<ArraySize(aDbConfig); ii++){
      if( nArg>1 && strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue;
      if( nArg>=3 ){
        sqlite3_db_config(p->db, aDbConfig[ii].op, booleanValue(azArg[2]), 0);
................................................................................
    }else{
      raw_printf(stderr, "Usage: .headers on|off\n");
      rc = 1;
    }
  }else

  if( c=='h' && strncmp(azArg[0], "help", n)==0 ){



    utf8_printf(p->out, "%s", zHelp);




  }else

  if( c=='i' && strncmp(azArg[0], "import", n)==0 ){
    char *zTable;               /* Insert data into this table */
    char *zFile;                /* Name of file to extra content from */
    sqlite3_stmt *pStmt = NULL; /* A statement */
    int nCol;                   /* Number of columns in the table */
................................................................................
      }else if( optionMatch(z, "zip") ){
        p->openMode = SHELL_OPEN_ZIPFILE;
#endif
      }else if( optionMatch(z, "append") ){
        p->openMode = SHELL_OPEN_APPENDVFS;
      }else if( optionMatch(z, "readonly") ){
        p->openMode = SHELL_OPEN_READONLY;




      }else if( z[0]=='-' ){
        utf8_printf(stderr, "unknown option: %s\n", z);
        rc = 1;
        goto meta_command_exit;
      }
    }
    /* If a filename is specified, try to open it first */
................................................................................
      pSession->nFilter = 0;
      sqlite3session_table_filter(pSession->p, session_filter, pSession);
      p->nSession++;
      pSession->zName = sqlite3_mprintf("%s", zName);
    }else
    /* If no command name matches, show a syntax error */
    session_syntax_error:
    session_help(p);
  }else
#endif

#ifdef SQLITE_DEBUG
  /* Undocumented commands for internal testing.  Subject to change
  ** without notice. */
  if( c=='s' && n>=10 && strncmp(azArg[0], "selftest-", 9)==0 ){
................................................................................
      zVfs = cmdline_option_value(argc, argv, ++i);
#ifdef SQLITE_HAVE_ZLIB
    }else if( strcmp(z,"-zip")==0 ){
      data.openMode = SHELL_OPEN_ZIPFILE;
#endif
    }else if( strcmp(z,"-append")==0 ){
      data.openMode = SHELL_OPEN_APPENDVFS;




    }else if( strcmp(z,"-readonly")==0 ){
      data.openMode = SHELL_OPEN_READONLY;
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
    }else if( strncmp(z, "-A",2)==0 ){
      /* All remaining command-line arguments are passed to the ".archive"
      ** command, so ignore them */
      break;
................................................................................
      memcpy(data.colSeparator,",",2);
#ifdef SQLITE_HAVE_ZLIB
    }else if( strcmp(z,"-zip")==0 ){
      data.openMode = SHELL_OPEN_ZIPFILE;
#endif
    }else if( strcmp(z,"-append")==0 ){
      data.openMode = SHELL_OPEN_APPENDVFS;




    }else if( strcmp(z,"-readonly")==0 ){
      data.openMode = SHELL_OPEN_READONLY;
    }else if( strcmp(z,"-ascii")==0 ){
      data.mode = MODE_Ascii;
      sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,
                       SEP_Unit);
      sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,
................................................................................
    }
    free(azCmd);
  }else{
    /* Run commands received from standard input
    */
    if( stdin_is_interactive ){
      char *zHome;
      char *zHistory = 0;
      int nHistory;
      printf(
        "SQLite version %s %.19s\n" /*extra-version-info*/
        "Enter \".help\" for usage hints.\n",
        sqlite3_libversion(), sqlite3_sourceid()
      );
      if( warnInmemoryDb ){
        printf("Connected to a ");
        printBold("transient in-memory database");
        printf(".\nUse \".open FILENAME\" to reopen on a "
               "persistent database.\n");
      }



      zHome = find_home_dir(0);
      if( zHome ){
        nHistory = strlen30(zHome) + 20;
        if( (zHistory = malloc(nHistory))!=0 ){
          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
        }
      }
      if( zHistory ){ shell_read_history(zHistory); }
#if HAVE_READLINE || HAVE_EDITLINE







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.....
11286
11287
11288
11289
11290
11291
11292
11293
11294
11295
11296
11297
11298
11299
11300
11301
11302
11303
11304
11305
11306
11307
11308
11309
11310
11311
.....
12502
12503
12504
12505
12506
12507
12508
12509
12510
12511
12512
12513
12514
12515
12516
.....
12565
12566
12567
12568
12569
12570
12571
12572

























12573
12574
12575
12576
12577
12578
12579
.....
12672
12673
12674
12675
12676
12677
12678
12679
12680
12681
12682
12683
12684
12685
12686
.....
13444
13445
13446
13447
13448
13449
13450
13451
13452
13453
13454
13455
13456
13457
13458
13459
13460
13461
13462
13463
13464
13465
13466
13467
13468
13469
13470
.....
13695
13696
13697
13698
13699
13700
13701
13702
13703
13704
13705
13706
13707
13708
13709
13710
13711
13712
13713
13714
13715
13716
.....
14179
14180
14181
14182
14183
14184
14185
14186
14187
14188
14189
14190
14191
14192
14193
14194
14195
14196
.....
14710
14711
14712
14713
14714
14715
14716
14717
14718
14719
14720
14721
14722
14723
14724
.....
16151
16152
16153
16154
16155
16156
16157
16158
16159
16160
16161
16162
16163
16164
16165
16166
16167
16168
.....
16250
16251
16252
16253
16254
16255
16256
16257
16258
16259
16260
16261
16262
16263
16264
16265
16266
16267
.....
16398
16399
16400
16401
16402
16403
16404
16405
16406
16407
16408
16409
16410
16411
16412
16413
16414
16415
16416
16417
16418
16419
16420
16421

16422
16423
16424
16425
16426
16427
16428
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
******************************************************************************
**
** This SQLite extension implements functions that compute SHA3 hashes.
** Two SQL functions are implemented:
**
**     sha3(X,SIZE)
**     sha3_query(Y,SIZE)
**
** The sha3(X) function computes the SHA3 hash of the input X, or NULL if
** X is NULL.
................................................................................
    0,                         /* xSync */
    0,                         /* xCommit */
    0,                         /* xRollback */
    0,                         /* xFindMethod */
    0,                         /* xRename */
    0,                         /* xSavepoint */
    0,                         /* xRelease */
    0,                         /* xRollbackTo */
    0,                         /* xShadowName */
  };

  int rc = sqlite3_create_module(db, "fsdir", &fsdirModule, 0);
  return rc;
}
#else         /* SQLITE_OMIT_VIRTUALTABLE */
# define fsdirRegister(x) SQLITE_OK
................................................................................
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0,                         /* xRollbackTo */
  0                          /* xShadowName */
};

#endif /* SQLITE_OMIT_VIRTUALTABLE */

int sqlite3CompletionVtabInit(sqlite3 *db){
  int rc = SQLITE_OK;
#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
    0,                            /* xCommit - commit transaction */
    0,                            /* xRollback - rollback transaction */
    0,                            /* xFindFunction - function overloading */
    0,                            /* xRename - rename the table */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0,                            /* xRollbackTo */
    0,                            /* xShadowName */
  };

  return sqlite3_create_module(p->dbv, "expert", &expertModule, (void*)p);
}
/*
** End of virtual table implementation.
*************************************************************************/
................................................................................
#define AUTOEQP_off      0           /* Automatic EXPLAIN QUERY PLAN is off */
#define AUTOEQP_on       1           /* Automatic EQP is on */
#define AUTOEQP_trigger  2           /* On and also show plans for triggers */
#define AUTOEQP_full     3           /* Show full EXPLAIN */

/* Allowed values for ShellState.openMode
*/
#define SHELL_OPEN_UNSPEC      0      /* No open-mode specified */
#define SHELL_OPEN_NORMAL      1      /* Normal database file */
#define SHELL_OPEN_APPENDVFS   2      /* Use appendvfs */
#define SHELL_OPEN_ZIPFILE     3      /* Use the zipfile virtual table */
#define SHELL_OPEN_READONLY    4      /* Open a normal database read-only */
#define SHELL_OPEN_DESERIALIZE 5      /* Open using sqlite3_deserialize() */

/*
** These are the allowed shellFlgs values
*/
#define SHFLG_Pagecache      0x00000001 /* The --pagecache option is used */
#define SHFLG_Lookaside      0x00000002 /* Lookaside memory is used */
#define SHFLG_Backslash      0x00000004 /* The --backslash option is used */
................................................................................
  if( x!=sz ){
    sqlite3_result_error(context, "could not read back the whole file", -1);
    goto edit_func_end;
  }
  if( bBin ){
    sqlite3_result_blob64(context, p, sz, sqlite3_free);
  }else{
    sqlite3_int64 i, j;
    if( hasCRNL ){
      /* If the original contains \r\n then do no conversions back to \n */
      j = sz;
    }else{
      /* If the file did not originally contain \r\n then convert any new
      ** \r\n back into \n */
      for(i=j=0; i<sz; i++){
................................................................................
    sqlite3_free(zErr);
    free(zQ2);
  }
  return rc;
}

/*
** Text of help messages.
**
** The help text for each individual command begins with a line that starts
** with ".".  Subsequent lines are supplimental information.
**
** There must be two or more spaces between the end of the command and the
** start of the description of what that command does.
*/

static const char *(azHelp[]) = {
#if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE)
  ".archive ...             Manage SQL archives",
  "   Each command must have exactly one of the following options:",
  "     -c, --create               Create a new archive",
  "     -u, --update               Update or add files to an existing archive",
  "     -t, --list                 List contents of archive",
  "     -x, --extract              Extract files from archive",
  "   Optional arguments:",
  "     -v, --verbose              Print each filename as it is processed",
  "     -f FILE, --file FILE       Operate on archive FILE (default is current db)",
  "     -a FILE, --append FILE     Operate on FILE opened using the apndvfs VFS",
  "     -C DIR, --directory DIR    Change to directory DIR to read/extract files",
  "     -n, --dryrun               Show the SQL that would have occurred",
  "   Examples:",
  "     .ar -cf archive.sar foo bar  # Create archive.sar from files foo and bar",
  "     .ar -tf archive.sar          # List members of archive.sar",
  "     .ar -xvf archive.sar         # Verbosely extract files from archive.sar",
  "   See also:",
  "      http://sqlite.org/cli.html#sqlar_archive_support",
#endif
#ifndef SQLITE_OMIT_AUTHORIZATION
  ".auth ON|OFF             Show authorizer callbacks",
#endif
  ".backup ?DB? FILE        Backup DB (default \"main\") to FILE",

  "       --append            Use the appendvfs",
  ".bail on|off             Stop after hitting an error.  Default OFF",
  ".binary on|off           Turn binary output on or off.  Default OFF",
  ".cd DIRECTORY            Change the working directory to DIRECTORY",
  ".changes on|off          Show number of rows changed by SQL",
  ".check GLOB              Fail if output since .testcase does not match",
  ".clone NEWDB             Clone data into NEWDB from the existing database",
  ".databases               List names and files of attached databases",
  ".dbconfig ?op? ?val?     List or change sqlite3_db_config() options",
  ".dbinfo ?DB?             Show status information about the database",
  ".dump ?TABLE? ...        Render all database content as SQL",


  "   Options:",
  "     --preserve-rowids      Include ROWID values in the output",
  "     --newlines             Allow unescaped newline characters in output",
  "   TABLE is LIKE pattern for the tables to dump",
  ".echo on|off             Turn command echo on or off",
  ".eqp on|off|full         Enable or disable automatic EXPLAIN QUERY PLAN",
  ".excel                   Display the output of next command in a spreadsheet",

  ".exit ?CODE?             Exit this program with return-code CODE",
  ".expert                  EXPERIMENTAL. Suggest indexes for specified queries",
/* Because explain mode comes on automatically now, the ".explain" mode
** is removed from the help screen.  It is still supported for legacy, however */
/*".explain ?on|off|auto?   Turn EXPLAIN output mode on or off or to automatic",*/
  ".fullschema ?--indent?   Show schema and the content of sqlite_stat tables",
  ".headers on|off          Turn display of headers on or off",

  ".help ?-all? ?PATTERN?   Show help text for PATTERN",
  ".import FILE TABLE       Import data from FILE into TABLE",
#ifndef SQLITE_OMIT_TEST_CONTROL
  ".imposter INDEX TABLE    Create imposter table TABLE on index INDEX",
#endif
  ".indexes ?TABLE?         Show names of indexes",
  "                           If TABLE is specified, only show indexes for",
  "                           tables matching TABLE using the LIKE operator.",
#ifdef SQLITE_ENABLE_IOTRACE
  ".iotrace FILE            Enable I/O diagnostic logging to FILE",
#endif
  ".limit ?LIMIT? ?VAL?     Display or change the value of an SQLITE_LIMIT",
  ".lint OPTIONS            Report potential schema issues.",
  "     Options:",
  "        fkey-indexes     Find missing foreign key indexes",
#ifndef SQLITE_OMIT_LOAD_EXTENSION
  ".load FILE ?ENTRY?       Load an extension library",
#endif
  ".log FILE|off            Turn logging on or off.  FILE can be stderr/stdout",
  ".mode MODE ?TABLE?       Set output mode",
  "   MODE is one of:",
  "     ascii    Columns/rows delimited by 0x1F and 0x1E",
  "     csv      Comma-separated values",
  "     column   Left-aligned columns.  (See .width)",
  "     html     HTML <table> code",
  "     insert   SQL insert statements for TABLE",
  "     line     One value per line",
  "     list     Values delimited by \"|\"",
  "     quote    Escape answers as for SQL",
  "     tabs     Tab-separated values",
  "     tcl      TCL list elements",
  ".nullvalue STRING        Use STRING in place of NULL values",
  ".once (-e|-x|FILE)       Output for the next SQL command only to FILE",
  "     If FILE begins with '|' then open as a pipe",
  "     Other options:",
  "       -e    Invoke system text editor",

  "       -x    Open in a spreadsheet",
  ".open ?OPTIONS? ?FILE?   Close existing database and reopen FILE",


  "     Options:",
  "        --append        Use appendvfs to append database to the end of FILE",
#ifdef SQLITE_ENABLE_DESERIALIZE
  "        --deserialize   Load into memory useing sqlite3_deserialize()",
#endif
  "        --new           Initialize FILE to an empty database",
  "        --readonly      Open FILE readonly",
  "        --zip           FILE is a ZIP archive",
  ".output ?FILE?           Send output to FILE or stdout if FILE is omitted",
  "     If FILE begins with '|' then open it as a pipe.",
  ".print STRING...         Print literal STRING",
  ".prompt MAIN CONTINUE    Replace the standard prompts",
  ".quit                    Exit this program",

  ".read FILE               Read input from FILE",
  ".restore ?DB? FILE       Restore content of DB (default \"main\") from FILE",
  ".save FILE               Write in-memory database into FILE",
  ".scanstats on|off        Turn sqlite3_stmt_scanstatus() metrics on or off",
  ".schema ?PATTERN?        Show the CREATE statements matching PATTERN",

  "     Options:",
  "         --indent            Try to pretty-print the schema",
  ".selftest ?OPTIONS?      Run tests defined in the SELFTEST table",


  "    Options:",
  "       --init               Create a new SELFTEST table",
  "       -v                   Verbose output",
  ".separator COL ?ROW?     Change the column and row separators",
#if defined(SQLITE_ENABLE_SESSION)
  ".session ?NAME? CMD ...  Create or control sessions",
  "   Subcommands:",
  "     attach TABLE             Attach TABLE",
  "     changeset FILE           Write a changeset into FILE",
  "     close                    Close one session",
  "     enable ?BOOLEAN?         Set or query the enable bit",
  "     filter GLOB...           Reject tables matching GLOBs",
  "     indirect ?BOOLEAN?       Mark or query the indirect status",
  "     isempty                  Query whether the session is empty",
  "     list                     List currently open session names",
  "     open DB NAME             Open a new session on DB",
  "     patchset FILE            Write a patchset into FILE",
  "   If ?NAME? is omitted, the first defined session is used.",
#endif
  ".sha3sum ...             Compute a SHA3 hash of database content",
  "    Options:",
  "      --schema              Also hash the sqlite_master table",
  "      --sha3-224            Use the sha3-224 algorithm",
  "      --sha3-256            Use the sha3-256 algorithm.  This is the default.",
  "      --sha3-384            Use the sha3-384 algorithm",
  "      --sha3-512            Use the sha3-512 algorithm",
  "    Any other argument is a LIKE pattern for tables to hash",
#ifndef SQLITE_NOHAVE_SYSTEM
  ".shell CMD ARGS...       Run CMD ARGS... in a system shell",
#endif
  ".show                    Show the current values for various settings",
  ".stats ?on|off?          Show stats or turn stats on or off",
#ifndef SQLITE_NOHAVE_SYSTEM
  ".system CMD ARGS...      Run CMD ARGS... in a system shell",
#endif
  ".tables ?TABLE?          List names of tables matching LIKE pattern TABLE",


  ".testcase NAME           Begin redirecting output to 'testcase-out.txt'",
  ".timeout MS              Try opening locked tables for MS milliseconds",
  ".timer on|off            Turn SQL timer on or off",
  ".trace FILE|off          Output each SQL statement as it is run",
  ".vfsinfo ?AUX?           Information about the top-level VFS",
  ".vfslist                 List all available VFSes",
  ".vfsname ?AUX?           Print the name of the VFS stack",
  ".width NUM1 NUM2 ...     Set column widths for \"column\" mode",
  "     Negative values right-justify",
};



/*

** Output help text.
**
** zPattern describes the set of commands for which help text is provided.
** If zPattern is NULL, then show all commands, but only give a one-line
** description of each.
**
** Return the number of matches.
*/















static int showHelp(FILE *out, const char *zPattern){
  int i = 0;
  int j = 0;
  int n = 0;
  char *zPat;
  if( zPattern==0
   || zPattern[0]=='0'
   || strcmp(zPattern,"-a")==0
   || strcmp(zPattern,"-all")==0
  ){
    /* Show all commands, but only one line per command */
    if( zPattern==0 ) zPattern = "";
    for(i=0; i<ArraySize(azHelp); i++){
      if( azHelp[i][0]=='.' || zPattern[0] ){
        utf8_printf(out, "%s\n", azHelp[i]);
        n++;
      }

    }
  }else{
    /* Look for commands that for which zPattern is an exact prefix */
    zPat = sqlite3_mprintf(".%s*", zPattern);
    for(i=0; i<ArraySize(azHelp); i++){
      if( sqlite3_strglob(zPat, azHelp[i])==0 ){
        utf8_printf(out, "%s\n", azHelp[i]);
        j = i+1;
        n++;
      }
    }
    sqlite3_free(zPat);
    if( n ){
      if( n==1 ){
        /* when zPattern is a prefix of exactly one command, then include the
        ** details of that command, which should begin at offset j */
        while( j<ArraySize(azHelp)-1 && azHelp[j][0]!='.' ){
          utf8_printf(out, "%s\n", azHelp[j]);
          j++;
        }
      }
      return n;
    }
    /* Look for commands that contain zPattern anywhere.  Show the complete
    ** text of all commands that match. */
    zPat = sqlite3_mprintf("%%%s%%", zPattern);
    for(i=0; i<ArraySize(azHelp); i++){
      if( azHelp[i][0]=='.' ) j = i;
      if( sqlite3_strlike(zPat, azHelp[i], 0)==0 ){
        utf8_printf(out, "%s\n", azHelp[j]);
        while( j<ArraySize(azHelp)-1 && azHelp[j+1][0]!='.' ){
          j++;
          utf8_printf(out, "%s\n", azHelp[j]);
        }
        i = j;
        n++;
      }
    }
    sqlite3_free(zPat);
  }
  return n;
}

/* Forward reference */
static int process_input(ShellState *p, FILE *in);

/*
** Read the content of file zName into memory obtained from sqlite3_malloc64()
** and return a pointer to the buffer. The caller is responsible for freeing
................................................................................
  size_t nRead;
  char *pBuf;
  if( in==0 ) return 0;
  fseek(in, 0, SEEK_END);
  nIn = ftell(in);
  rewind(in);
  pBuf = sqlite3_malloc64( nIn+1 );
  if( pBuf==0 ){ fclose(in); return 0; }
  nRead = fread(pBuf, nIn, 1, in);
  fclose(in);
  if( nRead!=1 ){
    sqlite3_free(pBuf);
    return 0;
  }
  pBuf[nIn] = 0;
................................................................................
  if( f==0 ){
    if( dfltZip && sqlite3_strlike("%.zip",zName,0)==0 ){
       return SHELL_OPEN_ZIPFILE;
    }else{
       return SHELL_OPEN_NORMAL;
    }
  }
  n = fread(zBuf, 16, 1, f);
  if( n==1 && memcmp(zBuf, "SQLite format 3", 16)==0 ){
    fclose(f);
    return SHELL_OPEN_NORMAL;
  }
  fseek(f, -25, SEEK_END);
  n = fread(zBuf, 25, 1, f);
  if( n==1 && memcmp(zBuf, "Start-Of-SQLite3-", 17)==0 ){
    rc = SHELL_OPEN_APPENDVFS;
  }else{
    fseek(f, -22, SEEK_END);
    n = fread(zBuf, 22, 1, f);
................................................................................
      }
    }
    switch( p->openMode ){
      case SHELL_OPEN_APPENDVFS: {
        sqlite3_open_v2(p->zDbFilename, &p->db, 
           SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, "apndvfs");
        break;
      }
      case SHELL_OPEN_DESERIALIZE: {
        sqlite3_open(0, &p->db);
        break;
      }
      case SHELL_OPEN_ZIPFILE: {
        sqlite3_open(":memory:", &p->db);
        break;
      }
      case SHELL_OPEN_READONLY: {
        sqlite3_open_v2(p->zDbFilename, &p->db, SQLITE_OPEN_READONLY, 0);
................................................................................
#endif
    if( p->openMode==SHELL_OPEN_ZIPFILE ){
      char *zSql = sqlite3_mprintf(
         "CREATE VIRTUAL TABLE zip USING zipfile(%Q);", p->zDbFilename);
      sqlite3_exec(p->db, zSql, 0, 0, 0);
      sqlite3_free(zSql);
    }
#ifdef SQLITE_ENABLE_DESERIALIZE
    else if( p->openMode==SHELL_OPEN_DESERIALIZE ){
      int nData = 0;
      unsigned char *aData = (unsigned char*)readFile(p->zDbFilename, &nData);
      int rc = sqlite3_deserialize(p->db, "main", aData, nData, nData,
                   SQLITE_DESERIALIZE_RESIZEABLE |
                   SQLITE_DESERIALIZE_FREEONCLOSE);
      if( rc ){
        utf8_printf(stderr, "Error: sqlite3_deserialize() returns %d\n", rc);
      }
    }
#endif
  }
}

/*
** Attempt to close the databaes connection.  Report errors.
*/
void close_db(sqlite3 *db){
................................................................................
){
  *ppStmt = 0;
  if( *pRc==SQLITE_OK ){
    va_list ap;
    char *z;
    va_start(ap, zFmt);
    z = sqlite3_vmprintf(zFmt, ap);
    va_end(ap);
    if( z==0 ){
      *pRc = SQLITE_NOMEM;
    }else{
      shellPrepare(db, pRc, z, ppStmt);
      sqlite3_free(z);
    }
  }
................................................................................
  sqlite3 *db;                    /* Database containing the archive */
};

/*
** Print a usage message for the .ar command to stderr and return SQLITE_ERROR.
*/
static int arUsage(FILE *f){
  showHelp(f,"archive");

























  return SQLITE_ERROR;
}

/*
** Print an error message for the .ar command to stderr and return 
** SQLITE_ERROR.
*/
................................................................................
    { "directory", 'C', AR_SWITCH_DIRECTORY, 1 },
    { "dryrun",    'n', AR_SWITCH_DRYRUN,    0 },
  };
  int nSwitch = sizeof(aSwitch) / sizeof(struct ArSwitch);
  struct ArSwitch *pEnd = &aSwitch[nSwitch];

  if( nArg<=1 ){
    utf8_printf(stderr, "Wrong number of arguments.  Usage:\n");
    return arUsage(stderr);
  }else{
    char *z = azArg[1];
    if( z[0]!='-' ){
      /* Traditional style [tar] invocation */
      int i;
      int iArg = 2;
................................................................................
      utf8_printf(stderr,"Error: %s\n", zErrMsg);
      sqlite3_free(zErrMsg);
      rc = 1;
    }
  }else

  if( c=='d' && n>=3 && strncmp(azArg[0], "dbconfig", n)==0 ){
    static const struct DbConfigChoices {
      const char *zName;
      int op;
    } aDbConfig[] = {
        { "enable_fkey",      SQLITE_DBCONFIG_ENABLE_FKEY            },
        { "enable_trigger",   SQLITE_DBCONFIG_ENABLE_TRIGGER         },
        { "fts3_tokenizer",   SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER  },
        { "load_extension",   SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION  },
        { "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE       },
        { "enable_qpsg",      SQLITE_DBCONFIG_ENABLE_QPSG            },
        { "trigger_eqp",      SQLITE_DBCONFIG_TRIGGER_EQP            },
        { "reset_database",   SQLITE_DBCONFIG_RESET_DATABASE         },
        { "defensive",        SQLITE_DBCONFIG_DEFENSIVE              },
    };
    int ii, v;
    open_db(p, 0);
    for(ii=0; ii<ArraySize(aDbConfig); ii++){
      if( nArg>1 && strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue;
      if( nArg>=3 ){
        sqlite3_db_config(p->db, aDbConfig[ii].op, booleanValue(azArg[2]), 0);
................................................................................
    }else{
      raw_printf(stderr, "Usage: .headers on|off\n");
      rc = 1;
    }
  }else

  if( c=='h' && strncmp(azArg[0], "help", n)==0 ){
    if( nArg>=2 ){
      n = showHelp(p->out, azArg[1]);
      if( n==0 ){
        utf8_printf(p->out, "Nothing matches '%s'\n", azArg[1]);
      }
    }else{
      showHelp(p->out, 0);
    }
  }else

  if( c=='i' && strncmp(azArg[0], "import", n)==0 ){
    char *zTable;               /* Insert data into this table */
    char *zFile;                /* Name of file to extra content from */
    sqlite3_stmt *pStmt = NULL; /* A statement */
    int nCol;                   /* Number of columns in the table */
................................................................................
      }else if( optionMatch(z, "zip") ){
        p->openMode = SHELL_OPEN_ZIPFILE;
#endif
      }else if( optionMatch(z, "append") ){
        p->openMode = SHELL_OPEN_APPENDVFS;
      }else if( optionMatch(z, "readonly") ){
        p->openMode = SHELL_OPEN_READONLY;
#ifdef SQLITE_ENABLE_DESERIALIZE
      }else if( optionMatch(z, "deserialize") ){
        p->openMode = SHELL_OPEN_DESERIALIZE;
#endif
      }else if( z[0]=='-' ){
        utf8_printf(stderr, "unknown option: %s\n", z);
        rc = 1;
        goto meta_command_exit;
      }
    }
    /* If a filename is specified, try to open it first */
................................................................................
      pSession->nFilter = 0;
      sqlite3session_table_filter(pSession->p, session_filter, pSession);
      p->nSession++;
      pSession->zName = sqlite3_mprintf("%s", zName);
    }else
    /* If no command name matches, show a syntax error */
    session_syntax_error:
    showHelp(p->out, "session");
  }else
#endif

#ifdef SQLITE_DEBUG
  /* Undocumented commands for internal testing.  Subject to change
  ** without notice. */
  if( c=='s' && n>=10 && strncmp(azArg[0], "selftest-", 9)==0 ){
................................................................................
      zVfs = cmdline_option_value(argc, argv, ++i);
#ifdef SQLITE_HAVE_ZLIB
    }else if( strcmp(z,"-zip")==0 ){
      data.openMode = SHELL_OPEN_ZIPFILE;
#endif
    }else if( strcmp(z,"-append")==0 ){
      data.openMode = SHELL_OPEN_APPENDVFS;
#ifdef SQLITE_ENABLE_DESERIALIZE
    }else if( strcmp(z,"-deserialize")==0 ){
      data.openMode = SHELL_OPEN_DESERIALIZE;
#endif
    }else if( strcmp(z,"-readonly")==0 ){
      data.openMode = SHELL_OPEN_READONLY;
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
    }else if( strncmp(z, "-A",2)==0 ){
      /* All remaining command-line arguments are passed to the ".archive"
      ** command, so ignore them */
      break;
................................................................................
      memcpy(data.colSeparator,",",2);
#ifdef SQLITE_HAVE_ZLIB
    }else if( strcmp(z,"-zip")==0 ){
      data.openMode = SHELL_OPEN_ZIPFILE;
#endif
    }else if( strcmp(z,"-append")==0 ){
      data.openMode = SHELL_OPEN_APPENDVFS;
#ifdef SQLITE_ENABLE_DESERIALIZE
    }else if( strcmp(z,"-deserialize")==0 ){
      data.openMode = SHELL_OPEN_DESERIALIZE;
#endif
    }else if( strcmp(z,"-readonly")==0 ){
      data.openMode = SHELL_OPEN_READONLY;
    }else if( strcmp(z,"-ascii")==0 ){
      data.mode = MODE_Ascii;
      sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,
                       SEP_Unit);
      sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,
................................................................................
    }
    free(azCmd);
  }else{
    /* Run commands received from standard input
    */
    if( stdin_is_interactive ){
      char *zHome;
      char *zHistory;
      int nHistory;
      printf(
        "SQLite version %s %.19s\n" /*extra-version-info*/
        "Enter \".help\" for usage hints.\n",
        sqlite3_libversion(), sqlite3_sourceid()
      );
      if( warnInmemoryDb ){
        printf("Connected to a ");
        printBold("transient in-memory database");
        printf(".\nUse \".open FILENAME\" to reopen on a "
               "persistent database.\n");
      }
      zHistory = getenv("SQLITE_HISTORY");
      if( zHistory ){
        zHistory = strdup(zHistory);
      }else if( (zHome = find_home_dir(0))!=0 ){

        nHistory = strlen30(zHome) + 20;
        if( (zHistory = malloc(nHistory))!=0 ){
          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
        }
      }
      if( zHistory ){ shell_read_history(zHistory); }
#if HAVE_READLINE || HAVE_EDITLINE

Changes to src/skins.c.

674
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681

682
683
684
685

686
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688
689
690
691
692
static const char *skin_file_content(const char *zLabel, const char *zFile){
  const char *zResult;
  if( fossil_strcmp(zLabel, "current")==0 ){
    zResult = db_get(zFile, "");
  }else if( sqlite3_strglob("draft[1-9]", zLabel)==0 ){
    zResult = db_get_mprintf("", "%s-%s", zLabel, zFile);
  }else{
    while( 1 ){

      char *zKey = mprintf("skins/%s/%s.txt", zLabel, zFile);
      zResult = builtin_text(zKey);
      fossil_free(zKey);
      if( zResult!=0 || fossil_strcmp(zLabel,"default")==0 ) break;

    }
  }
  return zResult;
}


/*







|
>



|
>







674
675
676
677
678
679
680
681
682
683
684
685
686
687
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689
690
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693
694
static const char *skin_file_content(const char *zLabel, const char *zFile){
  const char *zResult;
  if( fossil_strcmp(zLabel, "current")==0 ){
    zResult = db_get(zFile, "");
  }else if( sqlite3_strglob("draft[1-9]", zLabel)==0 ){
    zResult = db_get_mprintf("", "%s-%s", zLabel, zFile);
  }else{
    int i;
    for(i=0; i<2; i++){
      char *zKey = mprintf("skins/%s/%s.txt", zLabel, zFile);
      zResult = builtin_text(zKey);
      fossil_free(zKey);
      if( zResult!=0 ) break;
      zLabel = "default";
    }
  }
  return zResult;
}


/*

Changes to src/smtp.c.

17
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23

24
25
26




27
28







29
30
31
32
33
34
35
..
75
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....
1297
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1311
....
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
**
** Implementation of SMTP (Simple Mail Transport Protocol) according
** to RFC 5321.
*/
#include "config.h"
#include "smtp.h"
#include <assert.h>

#if defined(__linux__) && !defined(FOSSIL_OMIT_DNS)
#  include <sys/types.h>
#  include <netinet/in.h>




#  include <arpa/nameser.h>
#  include <resolv.h>







#  define FOSSIL_UNIX_STYLE_DNS 1
#endif
#if defined(_WIN32) && !defined(__MINGW32__) && !defined(__MINGW64__)
#  include <windows.h>
#  include <windns.h>
#  define FOSSIL_WINDOWS_STYLE_DNS 1
#endif
................................................................................
      if( priority<iBestPriority ){
        pBest = p;
        iBestPriority = priority;
      }
    }
  }
  if( pBest ){
    ns_name_uncompress(aDns, aDns+nDns, pBest+2,
                       zHostname, sizeof(zHostname));
    return fossil_strdup(zHostname);
  }
  return 0;
#elif defined(FOSSIL_WINDOWS_STYLE_DNS)
  DNS_STATUS status;           /* Return status */
  PDNS_RECORDA pDnsRecord, p;  /* Pointer to DNS_RECORD structure */
  int iBestPriority = 9999999; /* Best priority */
................................................................................
  if( nErr ){
    fossil_print("Number of incorrect emailblob.enref values: %d\n",nErr);
  }
}


/*
** COMMAND: smtpd
**
** Usage: %fossil smtpd [OPTIONS] REPOSITORY
**
** Begin a SMTP conversation with a client using stdin/stdout.  The
** received email is stored in REPOSITORY.
**
** Options:
................................................................................
** found in the user table's info field, in angle brackets.
*/
static int pop3_login(const char *zUser, char *zPass){
  return login_search_uid(&zUser, zPass) != 0;
}

/*
** COMMAND: pop3d
**
** Usage: %fossil pop3d [OPTIONS] REPOSITORY
**
** Begin a POP3 conversation with a client using stdin/stdout using
** the mailboxes stored in REPOSITORY.
**
** If launched as root, the process first enters a chroot jail using







>
|


>
>
>
>
|
|
>
>
>
>
>
>
>







 







<
|







 







|







 







|







17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
..
87
88
89
90
91
92
93

94
95
96
97
98
99
100
101
....
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
....
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
**
** Implementation of SMTP (Simple Mail Transport Protocol) according
** to RFC 5321.
*/
#include "config.h"
#include "smtp.h"
#include <assert.h>
#if (HAVE_DN_EXPAND || HAVE___NS_NAME_UNCOMPRESS || HAVE_NS_NAME_UNCOMPRESS) && \
    (HAVE_NS_PARSERR || HAVE___NS_PARSERR) && !defined(FOSSIL_OMIT_DNS)
#  include <sys/types.h>
#  include <netinet/in.h>
#  if defined(HAVE_BIND_RESOLV_H)
#    include <bind/resolv.h>
#    include <bind/arpa/nameser_compat.h>
#  else
#    include <arpa/nameser.h>
#    include <resolv.h>
#  endif
#  if defined(HAVENS_NAME_UNCOMPRESS) && !defined(dn_expand)
#    define dn_expand ns_name_uncompress
#  endif
#  if defined(HAVE__NS_NAME_UNCOMPRESS) && !defined(dn_expand)
#    define dn_expand __ns_name_uncompress
#  endif
#  define FOSSIL_UNIX_STYLE_DNS 1
#endif
#if defined(_WIN32) && !defined(__MINGW32__) && !defined(__MINGW64__)
#  include <windows.h>
#  include <windns.h>
#  define FOSSIL_WINDOWS_STYLE_DNS 1
#endif
................................................................................
      if( priority<iBestPriority ){
        pBest = p;
        iBestPriority = priority;
      }
    }
  }
  if( pBest ){

    dn_expand(aDns, aDns+nDns, pBest+2, zHostname, sizeof(zHostname));
    return fossil_strdup(zHostname);
  }
  return 0;
#elif defined(FOSSIL_WINDOWS_STYLE_DNS)
  DNS_STATUS status;           /* Return status */
  PDNS_RECORDA pDnsRecord, p;  /* Pointer to DNS_RECORD structure */
  int iBestPriority = 9999999; /* Best priority */
................................................................................
  if( nErr ){
    fossil_print("Number of incorrect emailblob.enref values: %d\n",nErr);
  }
}


/*
** COMMAND: smtpd*
**
** Usage: %fossil smtpd [OPTIONS] REPOSITORY
**
** Begin a SMTP conversation with a client using stdin/stdout.  The
** received email is stored in REPOSITORY.
**
** Options:
................................................................................
** found in the user table's info field, in angle brackets.
*/
static int pop3_login(const char *zUser, char *zPass){
  return login_search_uid(&zUser, zPass) != 0;
}

/*
** COMMAND: pop3d*
**
** Usage: %fossil pop3d [OPTIONS] REPOSITORY
**
** Begin a POP3 conversation with a client using stdin/stdout using
** the mailboxes stored in REPOSITORY.
**
** If launched as root, the process first enters a chroot jail using

Changes to src/sqlite3.c.

1
2
3
4
5
6
7
8
9
10
...
255
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261



262
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....
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3134
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3144
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3150
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3152
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3154
....
3156
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3166
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3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
....
3187
3188
3189
3190
3191
3192
3193












3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206

3207
3208
3209
3210
3211
3212
3213
3214
....
4638
4639
4640
4641
4642
4643
4644









4645
4646
4647

4648
4649
4650
4651
4652
4653
4654
....
4798
4799
4800
4801
4802
4803
4804





4805
4806
4807
4808
4809
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....
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4834
....
7310
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7313
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7316



7317
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7319
7320
7321
7322
7323
....
9644
9645
9646
9647
9648
9649
9650

9651
9652
9653
9654
9655
9656
9657
.....
10909
10910
10911
10912
10913
10914
10915







10916
10917
10918
10919
10920
10921



















10922
10923
10924
10925
10926
10927
10928
.....
11569
11570
11571
11572
11573
11574
11575
11576
11577
11578
11579
11580
11581
11582
11583
.....
11587
11588
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11590
11591
11592
11593





11594
11595

11596
11597
11598
11599
11600
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11602
.....
11981
11982
11983
11984
11985
11986
11987






11988
11989
11990
11991
11992
11993
11994
.....
12008
12009
12010
12011
12012
12013
12014







































12015
12016
12017
12018
12019
12020
12021
.....
16034
16035
16036
16037
16038
16039
16040
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16042
16043
16044
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16046

16047
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16049
16050
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16052
16053
.....
16100
16101
16102
16103
16104
16105
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16107
16108
16109
16110
16111
16112
16113
16114
.....
16265
16266
16267
16268
16269
16270
16271



16272
16273

16274
16275
16276
16277
16278
16279
16280
16281
16282
16283
16284
16285
16286
.....
16671
16672
16673
16674
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16676
16677



16678
16679
16680
16681
16682
16683
16684
.....
16721
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16728
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16730
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16733
16734
.....
17007
17008
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17010
17011
17012
17013






17014
17015
17016
17017
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17019
17020
.....
17188
17189
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17192
17193
17194
17195
17196
17197
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17199
17200
17201
17202
17203
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17205
17206
.....
17222
17223
17224
17225
17226
17227
17228

17229
17230
17231
17232
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17234
17235
.....
17907
17908
17909
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17914
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.....
18378
18379
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18381
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18383
18384

18385
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18387
18388
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18390
18391
.....
18494
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18501
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.....
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18732



18733
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18738
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18743
18744
.....
18751
18752
18753
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18757



18758
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18764
.....
18908
18909
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18915
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.....
18954
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18958
18959
18960



18961
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18967
.....
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19118
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19123
19124
.....
20063
20064
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20068
20069



20070
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20072
20073
20074
20075
20076
.....
28291
28292
28293
28294
28295
28296
28297




































28298
28299
28300
28301
28302
28303
28304
.....
28345
28346
28347
28348
28349
28350
28351
28352
28353
28354
28355
28356
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28358
28359
28360
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28362
28363
28364
28365
28366
28367
28368
28369
28370
28371
28372
28373
28374
28375
28376
28377
28378
28379
28380
28381
28382
28383
28384
28385
28386
28387
28388
28389
28390
28391
.....
28667
28668
28669
28670
28671
28672
28673
28674
28675
28676
28677
28678
28679
28680
28681
.....
31495
31496
31497
31498
31499
31500
31501














31502
31503
31504
31505
31506
31507
31508
.....
31606
31607
31608
31609
31610
31611
31612


































31613
31614
31615
31616
31617
31618
31619
.....
31650
31651
31652
31653
31654
31655
31656








31657
31658
31659
31660
31661
31662
31663
.....
32032
32033
32034
32035
32036
32037
32038
32039
32040
32041
32042
32043
32044
32045
32046
32047
32048
32049
32050
32051
.....
32615
32616
32617
32618
32619
32620
32621



32622

32623
32624
32625
32626
32627
32628
32629
.....
33209
33210
33211
33212
33213
33214
33215
33216
33217
33218
33219
33220
33221
33222
33223
33224
.....
33256
33257
33258
33259
33260
33261
33262


33263
33264
33265
33266
33267
33268
33269

33270
33271
33272
33273
33274
33275
33276
.....
33390
33391
33392
33393
33394
33395
33396
33397
33398
33399
33400
33401
33402
33403
33404
33405
.....
33426
33427
33428
33429
33430
33431
33432
33433
33434
33435
33436
33437
33438
33439
33440
33441
.....
33488
33489
33490
33491
33492
33493
33494

33495
33496
33497
33498
33499
33500
33501
.....
33507
33508
33509
33510
33511
33512
33513

33514
33515
33516
33517
33518
33519
33520
.....
36304
36305
36306
36307
36308
36309
36310
36311
36312
36313
36314
36315
36316
36317
36318
36319
36320
36321
36322
36323
36324
36325
36326
36327
36328
36329
.....
36337
36338
36339
36340
36341
36342
36343
36344
36345
36346
36347
36348
36349
36350
36351
36352
36353
36354
36355
36356
36357
36358
36359
36360
.....
36376
36377
36378
36379
36380
36381
36382
36383

36384
36385
36386
36387
36388
36389
36390
36391
36392
36393
36394
36395
36396
36397
36398
36399
36400
36401
36402
36403
36404
.....
36462
36463
36464
36465
36466
36467
36468
36469
36470
36471
36472
36473
36474
36475
36476
36477
36478
36479
36480
36481
36482
36483
36484
36485
36486
36487
.....
36515
36516
36517
36518
36519
36520
36521
36522
36523
36524
36525
36526
36527
36528
36529





36530
36531
36532
36533
36534
36535
36536
36537
.....
36629
36630
36631
36632
36633
36634
36635
36636
36637
36638
36639
36640
36641
36642
36643
36644
36645
36646
36647
36648
36649
36650
36651
36652
36653
36654
36655
36656
36657
36658
36659
36660
36661
36662
36663
36664
36665
36666
36667
36668
36669
36670
36671
.....
36677
36678
36679
36680
36681
36682
36683
36684
36685
36686
36687
36688
36689
36690
36691
36692
36693
36694
36695
36696
36697
.....
36735
36736
36737
36738
36739
36740
36741
36742
36743
36744
36745
36746
36747
36748
36749
36750
36751
36752
36753
36754
36755
36756
36757
36758
36759
36760
36761
36762
36763
36764
36765
36766
36767
36768
36769
36770
36771
36772
36773
36774
36775
.....
36789
36790
36791
36792
36793
36794
36795
36796
36797
36798
36799
36800
36801
36802
36803
.....
36812
36813
36814
36815
36816
36817
36818
36819
36820
36821
36822
36823
36824
36825
36826
36827
36828
36829
36830
36831
36832
36833
36834
36835
36836
36837
36838
36839
36840
36841
.....
36844
36845
36846
36847
36848
36849
36850
36851
36852
36853
36854
36855
36856
36857
36858
.....
36878
36879
36880
36881
36882
36883
36884
36885
36886
36887
36888
36889
36890
36891
36892
36893
36894
36895
36896
36897
.....
36956
36957
36958
36959
36960
36961
36962
36963
36964
36965
36966
36967
36968
36969
36970
.....
37006
37007
37008
37009
37010
37011
37012
37013
37014
37015
37016
37017
37018
37019
37020
37021
37022
37023
37024
37025
37026
37027
37028
37029
37030
37031
37032
37033
37034
37035
37036
.....
47314
47315
47316
47317
47318
47319
47320
47321
47322
47323
47324
47325
47326
47327
47328
.....
57097
57098
57099
57100
57101
57102
57103

57104
57105
57106
57107
57108
57109
57110
.....
65757
65758
65759
65760
65761
65762
65763
65764
65765
65766
65767
65768
65769
65770
65771
.....
66231
66232
66233
66234
66235
66236
66237

66238
66239
66240
66241
66242
66243
66244
.....
74026
74027
74028
74029
74030
74031
74032

74033
74034
74035
74036
74037
74038
74039
74040
.....
75601
75602
75603
75604
75605
75606
75607







75608
75609
75610
75611
75612
75613
75614
.....
75622
75623
75624
75625
75626
75627
75628





75629
75630
75631
75632
75633
75634
75635
.....
78693
78694
78695
78696
78697
78698
78699



78700
78701
78702
78703
78704
78705
78706
.....
80094
80095
80096
80097
80098
80099
80100


80101
80102
80103
80104
80105
80106
80107
80108
.....
82105
82106
82107
82108
82109
82110
82111










82112
82113
82114
82115
82116
82117
82118
.....
85544
85545
85546
85547
85548
85549
85550
85551
85552
85553
85554
85555
85556
85557
85558
85559










85560
85561

85562
85563
85564
85565
85566
85567
85568
.....
88410
88411
88412
88413
88414
88415
88416
88417
88418
88419
88420
88421
88422
88423
88424
.....
89607
89608
89609
89610
89611
89612
89613
89614
89615
89616
89617

89618
89619
89620
89621
89622
89623
89624
.....
89632
89633
89634
89635
89636
89637
89638

89639
89640
89641
89642
89643
89644
89645
89646
.....
89709
89710
89711
89712
89713
89714
89715

89716


89717
89718
89719
89720
89721
89722
89723
89724
89725
89726
89727
89728
89729

89730
89731
89732
89733
89734
89735
89736
.....
93987
93988
93989
93990
93991
93992
93993
93994
93995
93996
93997
93998
93999
94000
94001
94002
.....
94261
94262
94263
94264
94265
94266
94267
94268
94269
94270
94271
94272
94273
94274
94275
.....
94305
94306
94307
94308
94309
94310
94311
94312
94313
94314
94315
94316
94317
94318
94319
.....
94367
94368
94369
94370
94371
94372
94373
94374
94375
94376
94377
94378
94379
94380
94381
.....
94393
94394
94395
94396
94397
94398
94399
94400
94401
94402
94403
94404
94405
94406
94407
94408
94409
94410
94411
94412
94413
.....
94456
94457
94458
94459
94460
94461
94462
94463
94464
94465
94466
94467
94468
94469
94470
.....
94478
94479
94480
94481
94482
94483
94484
94485
94486
94487
94488
94489
94490
94491
94492
.....
94578
94579
94580
94581
94582
94583
94584
94585
94586
94587
94588
94589
94590
94591
94592
.....
94656
94657
94658
94659
94660
94661
94662
94663
94664
94665
94666
94667
94668
94669
94670
94671
94672
.....
94748
94749
94750
94751
94752
94753
94754
94755
94756
94757
94758
94759
94760
94761
94762
.....
94792
94793
94794
94795
94796
94797
94798
94799
94800
94801
94802
94803
94804
94805
94806
94807
94808
.....
94884
94885
94886
94887
94888
94889
94890
94891
94892
94893
94894
94895
94896
94897
94898
94899
94900
94901
94902
94903
94904
94905
94906
94907
94908
94909
.....
94925
94926
94927
94928
94929
94930
94931
94932
94933
94934
94935
94936
94937
94938
94939
94940
94941
94942
94943
94944
94945
94946
94947
94948
94949
94950
94951
94952
94953
94954
94955
94956
94957
94958
.....
95367
95368
95369
95370
95371
95372
95373
95374
95375
95376
95377
95378
95379
95380
95381
95382
95383
95384
95385
95386
95387
.....
95836
95837
95838
95839
95840
95841
95842
95843
95844
95845
95846
95847
95848
95849
95850
95851
.....
95921
95922
95923
95924
95925
95926
95927
95928
95929
95930
95931
95932
95933
95934
95935
95936
95937
95938
95939
95940
95941
.....
96830
96831
96832
96833
96834
96835
96836




96837
96838
96839
96840
96841
96842
96843
.....
96848
96849
96850
96851
96852
96853
96854
96855

96856
96857
96858
96859
96860
96861
96862
96863
.....
96913
96914
96915
96916
96917
96918
96919
96920
96921
96922
96923
96924
96925
96926
96927
.....
96940
96941
96942
96943
96944
96945
96946
96947
96948
96949
96950
96951
96952
96953
96954
.....
97043
97044
97045
97046
97047
97048
97049
97050
97051
97052
97053
97054
97055
97056
97057






97058
97059
97060
97061
97062
97063
97064
97065
97066
97067
97068
97069
97070
97071
97072
97073
97074
97075
.....
97867
97868
97869
97870
97871
97872
97873
97874
97875
97876
97877
97878
97879
97880
97881
97882
.....
97923
97924
97925
97926
97927
97928
97929








97930
97931
97932
97933
97934
97935
97936
.....
99156
99157
99158
99159
99160
99161
99162
99163
99164
99165
99166
99167
99168
99169
99170
.....
99180
99181
99182
99183
99184
99185
99186
99187
99188
99189
99190
99191
99192
99193
99194
.....
99394
99395
99396
99397
99398
99399
99400
99401
99402
99403
99404
99405
99406
99407
99408
99409
.....
99638
99639
99640
99641
99642
99643
99644
99645
99646
99647
99648
99649
99650
99651
99652
99653
99654
99655
99656
99657
99658
99659
99660
99661
99662
99663
......
100500
100501
100502
100503
100504
100505
100506














100507
100508
100509
100510
100511
100512
100513
......
100519
100520
100521
100522
100523
100524
100525
100526
100527
100528
100529
100530
100531
100532
100533
100534
100535
100536
100537
100538
100539
100540
100541
100542
100543
100544
100545
100546
100547
......
100624
100625
100626
100627
100628
100629
100630
100631
100632
100633
100634
100635
100636
100637
100638
100639
100640
100641
100642
100643
100644
100645
100646
100647
100648
100649
......
100677
100678
100679
100680
100681
100682
100683
100684
100685
100686
100687
100688
100689
100690
100691
100692
......
100909
100910
100911
100912
100913
100914
100915
100916
100917
100918
100919
100920
100921
100922
100923
......
101294
101295
101296
101297
101298
101299
101300
101301
101302
101303
101304
101305
101306
101307
101308
101309
101310
101311
101312
101313
101314
101315
101316
101317
101318
101319
101320
101321
......
101364
101365
101366
101367
101368
101369
101370














101371
101372
101373
101374
101375
101376
101377
......
101928
101929
101930
101931
101932
101933
101934
101935
101936
101937
101938
101939
101940
101941
101942
......
102186
102187
102188
102189
102190
102191
102192




102193

102194
102195
102196
102197
102198
102199
102200
102201
102202
......
102466
102467
102468
102469
102470
102471
102472
102473
102474
102475
102476
102477
102478
102479
102480
102481
......
102547
102548
102549
102550
102551
102552
102553

102554
102555
102556
102557

102558
102559
102560
102561
102562
102563
102564

102565
102566
102567
102568
102569
102570
102571
102572
102573
102574
102575
......
102576
102577
102578
102579
102580
102581
102582

102583

102584
102585
102586
102587
102588
102589
102590

102591

102592
102593
102594
102595
102596
102597
102598
102599
102600
102601
102602
102603

102604
102605
102606
102607
102608
102609

102610
102611
102612
102613
102614
102615
102616
......
102660
102661
102662
102663
102664
102665
102666

102667
102668
102669
102670
102671
102672
102673
102674
102675
102676
102677
102678
102679
102680
102681
102682
102683
102684
102685
102686
102687

102688

102689
102690
102691
102692
102693
102694
102695
......
105437
105438
105439
105440
105441
105442
105443

105444
105445
105446
105447
105448
105449
105450
......
105493
105494
105495
105496
105497
105498
105499

105500
105501
105502
105503
105504
105505
105506
......
105916
105917
105918
105919
105920
105921
105922
105923
105924
105925
105926
105927
105928
105929
105930
105931
105932
105933
105934
105935
105936
105937
105938
105939
105940
......
106193
106194
106195
106196
106197
106198
106199






106200
106201
106202
106203
106204
106205
106206
......
106350
106351
106352
106353
106354
106355
106356














106357
106358
106359
106360
106361
106362
106363
106364
106365
106366
106367
106368
106369
106370
106371
106372
106373
106374
......
107331
107332
107333
107334
107335
107336
107337
107338
107339
107340
107341
107342
107343
107344
107345
107346
107347
107348
......
107439
107440
107441
107442
107443
107444
107445


























107446
107447
107448
107449
107450
107451
107452
......
107478
107479
107480
107481
107482
107483
107484




107485
107486
107487
107488
107489
107490
107491
......
107986
107987
107988
107989
107990
107991
107992
107993
107994
107995
107996
107997
107998
107999
108000
......
110441
110442
110443
110444
110445
110446
110447















110448
110449
110450
110451
110452
110453
110454
110455
110456
110457
110458
110459
110460
110461
110462
110463
110464
110465
110466
110467
110468
......
110533
110534
110535
110536
110537
110538
110539
110540
110541
110542
110543
110544
110545
110546
110547
......
110680
110681
110682
110683
110684
110685
110686































110687
110688
110689
110690
110691
110692
110693
110694
110695
110696
110697
110698
110699
110700
110701
110702
110703
110704
110705
110706
110707
110708
110709
110710
110711
110712
110713
110714
110715
110716
110717
110718
110719
110720
......
114110
114111
114112
114113
114114
114115
114116
114117
114118
114119
114120
114121
114122
114123
114124
......
115186
115187
115188
115189
115190
115191
115192

115193
115194
115195
115196
115197
115198
115199
115200
......
116166
116167
116168
116169
116170
116171
116172
116173

116174
116175
116176
116177
116178
116179
116180
116181
116182
116183
116184
116185
116186
116187
......
116195
116196
116197
116198
116199
116200
116201
116202
116203
116204
116205





116206
116207





116208
116209
116210
116211
116212
116213
116214
......
116215
116216
116217
116218
116219
116220
116221
116222
116223
116224
116225
116226
116227
116228
116229
......
116421
116422
116423
116424
116425
116426
116427
116428






116429
116430
116431
116432
116433
116434
116435
......
117922
117923
117924
117925
117926
117927
117928

117929
117930
117931
117932
117933
117934


117935
117936
117937
117938
117939
117940
117941
......
118215
118216
118217
118218
118219
118220
118221


118222
118223
118224
118225
118226
118227
118228
......
118670
118671
118672
118673
118674
118675
118676
118677






118678
118679
118680
118681
118682
118683
118684
......
119120
119121
119122
119123
119124
119125
119126
119127
119128
119129
119130
119131
119132
119133
119134
119135
119136
119137
......
119140
119141
119142
119143
119144
119145
119146
119147
119148
119149
119150
119151
119152
119153
119154
119155
119156
119157
119158
119159
119160
119161

119162
119163
119164
119165
119166
119167
119168
119169
119170
119171
119172
119173
119174
119175
119176
119177
119178
119179
119180
119181

119182
119183
119184
119185

119186
119187
119188
119189
119190


119191
119192
119193
119194
119195
119196
119197
119198
119199
119200
119201
119202
119203
119204
119205
119206
119207
119208
119209
119210
119211
119212
119213
119214
119215
......
119237
119238
119239
119240
119241
119242
119243
119244
119245
119246
119247
119248
119249
119250
119251
......
119274
119275
119276
119277
119278
119279
119280
119281
119282
119283
119284
119285
119286
119287
119288
......
119309
119310
119311
119312
119313
119314
119315
119316
119317
119318
119319
119320
119321
119322
119323
119324
119325
119326
119327
119328
119329
119330
......
119346
119347
119348
119349
119350
119351
119352
119353
119354
119355
119356
119357
119358
119359
119360
119361
119362
119363
119364
119365
119366
119367
......
119389
119390
119391
119392
119393
119394
119395
119396
119397
119398
119399
119400
119401
119402
119403
119404
119405
119406
119407
119408
119409
119410
119411
119412
119413
119414
119415
119416
119417
......
119425
119426
119427
119428
119429
119430
119431
119432
119433
119434
119435
119436
119437
119438
119439
119440
119441
119442
119443
119444
......
119465
119466
119467
119468
119469
119470
119471





119472
119473
119474
119475
119476
119477
119478
......
119482
119483
119484
119485
119486
119487
119488
119489
119490
119491
119492
119493
119494
119495
119496
......
119508
119509
119510
119511
119512
119513
119514
119515
119516
119517
119518
119519
119520
119521
119522
......
119541
119542
119543
119544
119545
119546
119547
119548
119549
119550
119551
119552
119553
119554
119555
......
119572
119573
119574
119575
119576
119577
119578
119579
119580
119581
119582
119583
119584
119585
119586
119587
119588
119589
......
119628
119629
119630
119631
119632
119633
119634
119635
119636
119637
119638
119639
119640
119641
119642
119643
119644
119645
119646
119647
119648
119649
119650





119651
119652
119653
119654
119655
119656
119657
119658
119659
119660
119661
119662












119663
119664
119665
119666
119667
119668
119669
......
119707
119708
119709
119710
119711
119712
119713
119714
119715
119716
119717
119718
119719
119720
119721
119722
119723
119724
119725
119726
119727
119728
119729
119730
119731
119732
......
120730
120731
120732
120733
120734
120735
120736
120737
120738
120739
120740
120741
120742
120743
120744
......
120783
120784
120785
120786
120787
120788
120789
120790
120791
120792
120793
120794

120795
120796
120797
120798
120799
120800
120801
120802
120803
120804
120805
120806
120807
120808
120809
120810
120811
120812

120813
120814
120815
120816
120817
120818
120819
......
121809
121810
121811
121812
121813
121814
121815









121816



121817
121818


121819
121820
121821

121822
121823
121824
121825
121826
121827
121828
121829
121830
121831
121832
121833
121834
121835
121836
121837
121838
121839
121840
......
122156
122157
122158
122159
122160
122161
122162
122163

122164
122165
122166
122167
122168
122169
122170
......
122509
122510
122511
122512
122513
122514
122515
122516
122517
122518
122519
122520
122521
122522
122523
122524
......
122891
122892
122893
122894
122895
122896
122897
































































































































































































































































































122898
122899
122900
122901
122902
122903
122904
......
123903
123904
123905
123906
123907
123908
123909
123910
123911
123912
123913
123914
123915
123916
123917
......
123926
123927
123928
123929
123930
123931
123932
123933
123934
123935
123936
123937
123938
123939
123940
123941
123942
123943
123944
123945
......
124780
124781
124782
124783
124784
124785
124786
124787
124788
124789
124790
124791
124792
124793
124794
......
124965
124966
124967
124968
124969
124970
124971
124972
124973
124974
124975
124976
124977
124978
124979
124980
124981
124982
124983
124984
124985
124986
124987
......
125064
125065
125066
125067
125068
125069
125070
125071
125072
125073
125074
125075
125076
125077
125078
......
125417
125418
125419
125420
125421
125422
125423







125424
125425
125426
125427
125428
125429
125430
......
127167
127168
127169
127170
127171
127172
127173
127174
127175
127176
127177
127178
127179
127180
127181
127182
127183
127184
127185
127186

127187
127188
127189
127190
127191

127192














127193
127194
127195
127196
127197
127198
127199
......
131166
131167
131168
131169
131170
131171
131172



















































131173
131174
131175
131176
131177
131178
131179
......
131390
131391
131392
131393
131394
131395
131396
131397
131398
131399
131400
131401
131402


131403
131404
131405
131406
131407
131408
131409
131410
131411
131412
131413
131414
131415
131416
......
131951
131952
131953
131954
131955
131956
131957
131958
131959
131960
131961
131962
131963
131964
131965
......
132452
132453
132454
132455
132456
132457
132458
132459

132460
132461
132462
132463
132464
132465
132466
......
132994
132995
132996
132997
132998
132999
133000
133001
133002
133003
133004
133005
133006
133007
133008
133009
133010
133011
133012
133013
133014
133015
133016
133017
133018
133019
......
133025
133026
133027
133028
133029
133030
133031


133032
133033
133034
133035
133036
133037
133038
......
133719
133720
133721
133722
133723
133724
133725
133726
133727
133728
133729
133730
133731
133732
133733
......
134339
134340
134341
134342
134343
134344
134345

134346
134347
134348
134349
134350




















134351
134352
134353
134354
134355
134356
134357
......
134906
134907
134908
134909
134910
134911
134912
134913
134914
134915
134916
134917
134918
134919
134920
......
135598
135599
135600
135601
135602
135603
135604
135605
135606
135607
135608
135609
135610
135611
135612
......
136998
136999
137000
137001
137002
137003
137004
137005
137006
137007
137008
137009
137010
137011
137012
......
137099
137100
137101
137102
137103
137104
137105
137106
137107
137108
137109
137110
137111
137112
137113
......
137121
137122
137123
137124
137125
137126
137127
137128
137129
137130
137131
137132
137133
137134
137135
137136
137137
137138
137139
137140
......
137144
137145
137146
137147
137148
137149
137150
137151
137152
137153
137154
137155
137156
137157
137158
137159
137160
137161
......
138099
138100
138101
138102
138103
138104
138105

138106
138107
138108
138109
138110
138111
138112
......
138290
138291
138292
138293
138294
138295
138296

138297
138298
138299
138300
138301
138302
138303
138304
138305
138306
138307
138308
138309

138310
138311
138312
138313
138314
138315
138316
......
139165
139166
139167
139168
139169
139170
139171
139172
139173
139174
139175
139176
139177
139178
139179
......
140436
140437
140438
140439
140440
140441
140442








140443
140444
140445
140446
140447
140448
140449
......
141843
141844
141845
141846
141847
141848
141849

141850
141851
141852

141853
141854
141855
141856
141857
141858
141859
......
141871
141872
141873
141874
141875
141876
141877
141878








141879
141880
141881
141882
141883
141884
141885
......
144253
144254
144255
144256
144257
144258
144259
144260
144261
144262
144263
144264
144265
144266
144267
144268
144269
144270
144271
144272
......
144375
144376
144377
144378
144379
144380
144381
144382
144383
144384
144385
144386
144387
144388
144389
......
144588
144589
144590
144591
144592
144593
144594

144595
144596
144597
144598
144599

144600
144601
144602
144603
144604
144605
144606
......
145755
145756
145757
145758
145759
145760
145761
145762
145763
145764
145765
145766
145767
145768
145769
......
146008
146009
146010
146011
146012
146013
146014
146015
146016
146017
146018
146019
146020
146021
146022
146023
146024
146025
146026
146027
146028
......
146165
146166
146167
146168
146169
146170
146171
146172
146173
146174
146175
146176
146177
146178
146179
146180
146181
146182
146183
146184
146185
146186
146187
146188
146189
......
146244
146245
146246
146247
146248
146249
146250
146251
146252
146253
146254
146255
146256
146257
146258
146259
146260
146261
146262
146263
146264
146265
146266
146267
146268
146269
146270
146271
146272
146273
146274
146275
146276
146277
146278
146279
146280
146281
146282
146283
146284
146285
146286
146287
146288
146289
146290
146291
146292
146293
146294
146295
146296
146297
146298
146299
146300
146301
146302
146303
146304
146305
146306
146307
146308
146309
146310
146311
146312
146313
146314
146315
146316
146317
146318
146319
146320
146321
146322
146323
146324
146325
146326
146327
146328
146329
146330
146331
146332
146333
146334
146335
146336
146337
146338
146339
146340
146341
146342
146343
146344
146345
146346
146347
146348
146349
146350
146351
146352
146353
146354
146355
146356
146357
146358
146359
146360
146361
146362
146363
146364
146365
146366
146367
146368
146369
146370
146371
146372
146373
146374
146375
146376
146377
146378
146379
146380
146381
146382
146383
146384
146385
146386
146387
146388
146389
146390
146391
146392
146393
146394
146395
146396
146397
146398
146399
146400
146401
146402
146403
146404
146405
146406
146407
146408
146409
146410
146411
146412
146413
146414
146415
146416
146417
146418
146419
146420
146421
146422
146423
146424
146425
146426
146427
146428
146429
146430
146431
146432
146433
146434
146435
146436
146437
146438
146439
146440
146441
146442
146443
146444
146445
146446
146447
146448
146449
146450
146451
146452
146453
146454
146455
146456
146457
146458
......
146588
146589
146590
146591
146592
146593
146594
146595
146596
146597
146598
146599
146600
146601
146602
146603
146604
146605
146606
146607
146608
146609
146610
146611
146612
146613
146614
146615
146616
146617
146618
146619
146620
146621
146622
146623
146624
146625
146626
146627
146628
146629
146630
146631
146632
146633
146634
146635
146636
146637
146638
146639
......
146650
146651
146652
146653
146654
146655
146656
146657
146658
146659
146660
146661
146662
146663
146664
......
146682
146683
146684
146685
146686
146687
146688
146689
146690
146691
146692
146693
146694
146695
146696
146697
146698
146699
146700
146701
146702
146703
146704
146705
146706
146707
146708
146709
146710
146711
146712
146713
146714
146715
146716
146717
146718
146719
146720
146721
146722
146723
146724
......
146740
146741
146742
146743
146744
146745
146746
146747
146748
146749
146750
146751
146752
146753
146754
146755

146756
146757
146758
146759
146760
146761
146762
146763
146764
146765
146766
146767
146768
146769
146770
146771
146772
146773
146774
146775
146776
146777
146778
146779
146780
146781
146782
146783
146784
146785
146786
146787
146788
146789
146790
146791
146792
146793
146794
146795
146796
146797
146798
146799
146800
146801
146802
146803
146804
146805
146806
146807
146808
146809

146810
146811
146812
146813
146814
146815
146816
146817
......
147427
147428
147429
147430
147431
147432
147433
147434
147435
147436
147437
147438
147439
147440
147441
147442
147443
147444
......
148307
148308
148309
148310
148311
148312
148313
148314
148315
148316
148317
148318
148319
148320
148321
148322
148323
148324
......
149194
149195
149196
149197
149198
149199
149200
149201
149202
149203
149204
149205
149206
149207
149208
149209
149210
149211
149212
149213
149214
149215
149216
149217
149218
......
151176
151177
151178
151179
151180
151181
151182



































































151183
151184
151185
151186
151187
151188
151189
......
152573
152574
152575
152576
152577
152578
152579

152580
152581
152582
152583
152584
152585
152586
......
154759
154760
154761
154762
154763
154764
154765

154766
154767
154768
154769
154770
154771
154772
......
154798
154799
154800
154801
154802
154803
154804



154805
154806
154807
154808
154809
154810
154811
......
159137
159138
159139
159140
159141
159142
159143
159144
159145
159146
159147
159148
159149
159150
159151
......
159175
159176
159177
159178
159179
159180
159181
159182
159183
159184
159185
159186
159187
159188
159189
159190
159191
159192
159193
159194
159195
159196
......
161161
161162
161163
161164
161165
161166
161167
161168















161169
161170
161171
161172
161173
161174
161175
161176
161177
......
161186
161187
161188
161189
161190
161191
161192

161193
161194
161195
161196
161197
161198
161199
......
163817
163818
163819
163820
163821
163822
163823
163824

163825
163826
163827
163828
163829
163830
163831
......
167376
167377
167378
167379
167380
167381
167382
167383

167384
167385
167386
167387
167388
167389
167390
......
168764
168765
168766
168767
168768
168769
168770
168771
168772

168773
168774
168775
168776



168777
168778
168779
168780
168781
168782
168783
168784
168785
168786
......
168794
168795
168796
168797
168798
168799
168800
168801
168802
168803
168804
168805
168806
168807
168808
......
171120
171121
171122
171123
171124
171125
171126



171127
171128
171129
171130
171131
171132
171133



171134
171135
171136
171137
171138
171139
171140
171141
171142
171143
171144
171145
171146
171147
171148
......
177938
177939
177940
177941
177942
177943
177944
177945

177946
177947
177948
177949
177950
177951
177952
......
177965
177966
177967
177968
177969
177970
177971
177972

177973
177974
177975
177976
177977
177978
177979
......
181395
181396
181397
181398
181399
181400
181401
















181402
181403
181404
181405
181406
181407
181408
181409
181410
......
181419
181420
181421
181422
181423
181424
181425

181426
181427
181428
181429
181430
181431
181432
......
182409
182410
182411
182412
182413
182414
182415





182416
182417
182418
182419
182420
182421
182422





182423
182424
182425
182426
182427
182428
182429
......
182441
182442
182443
182444
182445
182446
182447
182448
182449
182450
182451
182452
182453
182454
182455
......
182461
182462
182463
182464
182465
182466
182467
182468
182469
182470
182471
182472
182473
182474
182475
......
182483
182484
182485
182486
182487
182488
182489








182490


182491
182492
182493
182494
182495
182496
182497
......
182541
182542
182543
182544
182545
182546
182547
182548
182549
182550
182551
182552
182553
182554
182555
182556
182557
182558
182559
182560
......
182748
182749
182750
182751
182752
182753
182754





















182755
182756
182757
182758
182759
182760
182761
......
182764
182765
182766
182767
182768
182769
182770
182771

























182772
182773
182774
182775
182776







182777
182778
182779
182780

182781

182782
182783
182784


























































182785
182786
182787
182788
182789
182790
182791
......
182823
182824
182825
182826
182827
182828
182829
182830
182831
182832
182833
182834
182835
182836
182837
......
183851
183852
183853
183854
183855
183856
183857







183858


183859
183860
183861
183862
183863
183864
183865
......
183895
183896
183897
183898
183899
183900
183901
183902
183903
183904
183905
183906
183907
183908
183909
......
183918
183919
183920
183921
183922
183923
183924

183925
183926
183927
183928
183929
183930
183931

183932
183933
183934
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......
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......
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......
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......
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/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version 3.25.1.  By combining all the individual C code files into this
** single large file, the entire code can be compiled as a single translation
** unit.  This allows many compilers to do optimizations that would not be
** possible if the files were compiled separately.  Performance improvements
** of 5% or more are commonly seen when SQLite is compiled as a single
** translation unit.
**
** This file is all you need to compile SQLite.  To use SQLite in other
................................................................................
  "ENABLE_FTS3_TOKENIZER",
#endif
#if SQLITE_ENABLE_FTS4
  "ENABLE_FTS4",
#endif
#if SQLITE_ENABLE_FTS5
  "ENABLE_FTS5",



#endif
#if SQLITE_ENABLE_HIDDEN_COLUMNS
  "ENABLE_HIDDEN_COLUMNS",
#endif
#if SQLITE_ENABLE_ICU
  "ENABLE_ICU",
#endif
................................................................................
  "ENABLE_MEMSYS3",
#endif
#if SQLITE_ENABLE_MEMSYS5
  "ENABLE_MEMSYS5",
#endif
#if SQLITE_ENABLE_MULTIPLEX
  "ENABLE_MULTIPLEX",



#endif
#if SQLITE_ENABLE_NULL_TRIM
  "ENABLE_NULL_TRIM",
#endif
#if SQLITE_ENABLE_OVERSIZE_CELL_CHECK
  "ENABLE_OVERSIZE_CELL_CHECK",
#endif
................................................................................
** been edited in any way since it was last checked in, then the last
** four hexadecimal digits of the hash may be modified.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.25.1"
#define SQLITE_VERSION_NUMBER 3025001
#define SQLITE_SOURCE_ID      "2018-09-18 20:20:44 2ac9003de44da7dafa3fbb1915ac5725a9275c86bf2f3b7aa19321bf1460b386"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros
................................................................................
** Existing configuration options might be discontinued.  Applications
** should check the return code from [sqlite3_db_config()] to make sure that
** the call worked.  ^The [sqlite3_db_config()] interface will return a
** non-zero [error code] if a discontinued or unsupported configuration option
** is invoked.
**
** <dl>

** <dt>SQLITE_DBCONFIG_LOOKASIDE</dt>
** <dd> ^This option takes three additional arguments that determine the 
** [lookaside memory allocator] configuration for the [database connection].
** ^The first argument (the third parameter to [sqlite3_db_config()] is a
** pointer to a memory buffer to use for lookaside memory.
** ^The first argument after the SQLITE_DBCONFIG_LOOKASIDE verb
** may be NULL in which case SQLite will allocate the
................................................................................
** connection is not currently using lookaside memory, or in other words
** when the "current value" returned by
** [sqlite3_db_status](D,[SQLITE_CONFIG_LOOKASIDE],...) is zero.
** Any attempt to change the lookaside memory configuration when lookaside
** memory is in use leaves the configuration unchanged and returns 
** [SQLITE_BUSY].)^</dd>
**

** <dt>SQLITE_DBCONFIG_ENABLE_FKEY</dt>
** <dd> ^This option is used to enable or disable the enforcement of
** [foreign key constraints].  There should be two additional arguments.
** The first argument is an integer which is 0 to disable FK enforcement,
** positive to enable FK enforcement or negative to leave FK enforcement
** unchanged.  The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether FK enforcement is off or on
** following this call.  The second parameter may be a NULL pointer, in
** which case the FK enforcement setting is not reported back. </dd>
**

** <dt>SQLITE_DBCONFIG_ENABLE_TRIGGER</dt>
** <dd> ^This option is used to enable or disable [CREATE TRIGGER | triggers].
** There should be two additional arguments.
** The first argument is an integer which is 0 to disable triggers,
** positive to enable triggers or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether triggers are disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the trigger setting is not reported back. </dd>
**

** <dt>SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</dt>
** <dd> ^This option is used to enable or disable the two-argument
** version of the [fts3_tokenizer()] function which is part of the
** [FTS3] full-text search engine extension.
** There should be two additional arguments.
** The first argument is an integer which is 0 to disable fts3_tokenizer() or
** positive to enable fts3_tokenizer() or negative to leave the setting
** unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether fts3_tokenizer is disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the new setting is not reported back. </dd>
**

** <dt>SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION</dt>
** <dd> ^This option is used to enable or disable the [sqlite3_load_extension()]
** interface independently of the [load_extension()] SQL function.
** The [sqlite3_enable_load_extension()] API enables or disables both the
** C-API [sqlite3_load_extension()] and the SQL function [load_extension()].
** There should be two additional arguments.
** When the first argument to this interface is 1, then only the C-API is
................................................................................
** C-API or the SQL function.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether [sqlite3_load_extension()] interface
** is disabled or enabled following this call.  The second parameter may
** be a NULL pointer, in which case the new setting is not reported back.
** </dd>
**
** <dt>SQLITE_DBCONFIG_MAINDBNAME</dt>
** <dd> ^This option is used to change the name of the "main" database
** schema.  ^The sole argument is a pointer to a constant UTF8 string
** which will become the new schema name in place of "main".  ^SQLite
** does not make a copy of the new main schema name string, so the application
** must ensure that the argument passed into this DBCONFIG option is unchanged
** until after the database connection closes.
** </dd>
**

** <dt>SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE</dt>
** <dd> Usually, when a database in wal mode is closed or detached from a 
** database handle, SQLite checks if this will mean that there are now no 
** connections at all to the database. If so, it performs a checkpoint 
** operation before closing the connection. This option may be used to
** override this behaviour. The first parameter passed to this operation
** is an integer - positive to disable checkpoints-on-close, or zero (the
** default) to enable them, and negative to leave the setting unchanged.
** The second parameter is a pointer to an integer
** into which is written 0 or 1 to indicate whether checkpoints-on-close
** have been disabled - 0 if they are not disabled, 1 if they are.
** </dd>
**
** <dt>SQLITE_DBCONFIG_ENABLE_QPSG</dt>
** <dd>^(The SQLITE_DBCONFIG_ENABLE_QPSG option activates or deactivates
** the [query planner stability guarantee] (QPSG).  When the QPSG is active,
** a single SQL query statement will always use the same algorithm regardless
** of values of [bound parameters].)^ The QPSG disables some query optimizations
** that look at the values of bound parameters, which can make some queries
** slower.  But the QPSG has the advantage of more predictable behavior.  With
** the QPSG active, SQLite will always use the same query plan in the field as
................................................................................
** The first argument to this setting is an integer which is 0 to disable 
** the QPSG, positive to enable QPSG, or negative to leave the setting
** unchanged. The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether the QPSG is disabled or enabled
** following this call.
** </dd>
**
** <dt>SQLITE_DBCONFIG_TRIGGER_EQP</dt>
** <dd> By default, the output of EXPLAIN QUERY PLAN commands does not 
** include output for any operations performed by trigger programs. This
** option is used to set or clear (the default) a flag that governs this
** behavior. The first parameter passed to this operation is an integer -
** positive to enable output for trigger programs, or zero to disable it,
** or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which is written 
** 0 or 1 to indicate whether output-for-triggers has been disabled - 0 if 
** it is not disabled, 1 if it is.  
** </dd>
**
** <dt>SQLITE_DBCONFIG_RESET_DATABASE</dt>
** <dd> Set the SQLITE_DBCONFIG_RESET_DATABASE flag and then run
** [VACUUM] in order to reset a database back to an empty database
** with no schema and no content. The following process works even for
** a badly corrupted database file:
** <ol>
** <li> If the database connection is newly opened, make sure it has read the
**      database schema by preparing then discarding some query against the
................................................................................
** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0);
** <li> [sqlite3_exec](db, "[VACUUM]", 0, 0, 0);
** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0);
** </ol>
** Because resetting a database is destructive and irreversible, the
** process requires the use of this obscure API and multiple steps to help
** ensure that it does not happen by accident.












** </dd>
** </dl>
*/
#define SQLITE_DBCONFIG_MAINDBNAME            1000 /* const char* */
#define SQLITE_DBCONFIG_LOOKASIDE             1001 /* void* int int */
#define SQLITE_DBCONFIG_ENABLE_FKEY           1002 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_TRIGGER        1003 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */
#define SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE      1006 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_QPSG           1007 /* int int* */
#define SQLITE_DBCONFIG_TRIGGER_EQP           1008 /* int int* */
#define SQLITE_DBCONFIG_RESET_DATABASE        1009 /* int int* */

#define SQLITE_DBCONFIG_MAX                   1009 /* Largest DBCONFIG */

/*
** CAPI3REF: Enable Or Disable Extended Result Codes
** METHOD: sqlite3
**
** ^The sqlite3_extended_result_codes() routine enables or disables the
** [extended result codes] feature of SQLite. ^The extended result
................................................................................
** probably reused many times.)^ ^Without this flag, [sqlite3_prepare_v3()]
** and [sqlite3_prepare16_v3()] assume that the prepared statement will 
** be used just once or at most a few times and then destroyed using
** [sqlite3_finalize()] relatively soon. The current implementation acts
** on this hint by avoiding the use of [lookaside memory] so as not to
** deplete the limited store of lookaside memory. Future versions of
** SQLite may act on this hint differently.









** </dl>
*/
#define SQLITE_PREPARE_PERSISTENT              0x01


/*
** CAPI3REF: Compiling An SQL Statement
** KEYWORDS: {SQL statement compiler}
** METHOD: sqlite3
** CONSTRUCTOR: sqlite3_stmt
**
................................................................................
** ^The sqlite3_sql(P) interface returns a pointer to a copy of the UTF-8
** SQL text used to create [prepared statement] P if P was
** created by [sqlite3_prepare_v2()], [sqlite3_prepare_v3()],
** [sqlite3_prepare16_v2()], or [sqlite3_prepare16_v3()].
** ^The sqlite3_expanded_sql(P) interface returns a pointer to a UTF-8
** string containing the SQL text of prepared statement P with
** [bound parameters] expanded.





**
** ^(For example, if a prepared statement is created using the SQL
** text "SELECT $abc,:xyz" and if parameter $abc is bound to integer 2345
** and parameter :xyz is unbound, then sqlite3_sql() will return
** the original string, "SELECT $abc,:xyz" but sqlite3_expanded_sql()
** will return "SELECT 2345,NULL".)^
**
................................................................................
** is available to hold the result, or if the result would exceed the
** the maximum string length determined by the [SQLITE_LIMIT_LENGTH].
**
** ^The [SQLITE_TRACE_SIZE_LIMIT] compile-time option limits the size of
** bound parameter expansions.  ^The [SQLITE_OMIT_TRACE] compile-time
** option causes sqlite3_expanded_sql() to always return NULL.
**
** ^The string returned by sqlite3_sql(P) is managed by SQLite and is
** automatically freed when the prepared statement is finalized.

** ^The string returned by sqlite3_expanded_sql(P), on the other hand,
** is obtained from [sqlite3_malloc()] and must be free by the application
** by passing it to [sqlite3_free()].
*/
SQLITE_API const char *sqlite3_sql(sqlite3_stmt *pStmt);
SQLITE_API char *sqlite3_expanded_sql(sqlite3_stmt *pStmt);


/*
** CAPI3REF: Determine If An SQL Statement Writes The Database
** METHOD: sqlite3_stmt
**
** ^The sqlite3_stmt_readonly(X) interface returns true (non-zero) if
** and only if the [prepared statement] X makes no direct changes to
................................................................................
                       void **ppArg);
  int (*xRename)(sqlite3_vtab *pVtab, const char *zNew);
  /* The methods above are in version 1 of the sqlite_module object. Those 
  ** below are for version 2 and greater. */
  int (*xSavepoint)(sqlite3_vtab *pVTab, int);
  int (*xRelease)(sqlite3_vtab *pVTab, int);
  int (*xRollbackTo)(sqlite3_vtab *pVTab, int);



};

/*
** CAPI3REF: Virtual Table Indexing Information
** KEYWORDS: sqlite3_index_info
**
** The sqlite3_index_info structure and its substructures is used as part
................................................................................
** CAPI3REF: Virtual Table Configuration Options
**
** These macros define the various options to the
** [sqlite3_vtab_config()] interface that [virtual table] implementations
** can use to customize and optimize their behavior.
**
** <dl>

** <dt>SQLITE_VTAB_CONSTRAINT_SUPPORT
** <dd>Calls of the form
** [sqlite3_vtab_config](db,SQLITE_VTAB_CONSTRAINT_SUPPORT,X) are supported,
** where X is an integer.  If X is zero, then the [virtual table] whose
** [xCreate] or [xConnect] method invoked [sqlite3_vtab_config()] does not
** support constraints.  In this configuration (which is the default) if
** a call to the [xUpdate] method returns [SQLITE_CONSTRAINT], then the entire
................................................................................
** [sqlite3changeset_invert()] functions, all changes within the changeset 
** that apply to a single table are grouped together. This means that when 
** an application iterates through a changeset using an iterator created by 
** this function, all changes that relate to a single table are visited 
** consecutively. There is no chance that the iterator will visit a change 
** the applies to table X, then one for table Y, and then later on visit 
** another change for table X.







*/
SQLITE_API int sqlite3changeset_start(
  sqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
  int nChangeset,                 /* Size of changeset blob in bytes */
  void *pChangeset                /* Pointer to blob containing changeset */
);





















/*
** CAPI3REF: Advance A Changeset Iterator
** METHOD: sqlite3_changeset_iter
**
** This function may only be used with iterators created by function
................................................................................
  int(*xConflict)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
  ),
  void *pCtx,                     /* First argument passed to xConflict */
  void **ppRebase, int *pnRebase, /* OUT: Rebase data */
  int flags                       /* Combination of SESSION_APPLY_* flags */
);

/*
** CAPI3REF: Flags for sqlite3changeset_apply_v2
**
** The following flags may passed via the 9th parameter to
** [sqlite3changeset_apply_v2] and [sqlite3changeset_apply_v2_strm]:
................................................................................
**   Usually, the sessions module encloses all operations performed by
**   a single call to apply_v2() or apply_v2_strm() in a [SAVEPOINT]. The
**   SAVEPOINT is committed if the changeset or patchset is successfully
**   applied, or rolled back if an error occurs. Specifying this flag
**   causes the sessions module to omit this savepoint. In this case, if the
**   caller has an open transaction or savepoint when apply_v2() is called, 
**   it may revert the partially applied changeset by rolling it back.





*/
#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT   0x0001


/* 
** CAPI3REF: Constants Passed To The Conflict Handler
**
** Values that may be passed as the second argument to a conflict-handler.
**
** <dl>
................................................................................
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
SQLITE_API int sqlite3changeset_start_strm(
  sqlite3_changeset_iter **pp,
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn






);
SQLITE_API int sqlite3session_changeset_strm(
  sqlite3_session *pSession,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
SQLITE_API int sqlite3session_patchset_strm(
................................................................................
  sqlite3_rebaser *pRebaser,
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);









































/*
** Make sure we can call this stuff from C++.
*/
#if 0
}
#endif
................................................................................
};

/*
** A hash table for built-in function definitions.  (Application-defined
** functions use a regular table table from hash.h.)
**
** Hash each FuncDef structure into one of the FuncDefHash.a[] slots.
** Collisions are on the FuncDef.u.pHash chain.

*/
#define SQLITE_FUNC_HASH_SZ 23
struct FuncDefHash {
  FuncDef *a[SQLITE_FUNC_HASH_SZ];       /* Hash table for functions */
};


#ifdef SQLITE_USER_AUTHENTICATION
/*
** Information held in the "sqlite3" database connection object and used
** to manage user authentication.
*/
typedef struct sqlite3_userauth sqlite3_userauth;
................................................................................
  sqlite3_vfs *pVfs;            /* OS Interface */
  struct Vdbe *pVdbe;           /* List of active virtual machines */
  CollSeq *pDfltColl;           /* The default collating sequence (BINARY) */
  sqlite3_mutex *mutex;         /* Connection mutex */
  Db *aDb;                      /* All backends */
  int nDb;                      /* Number of backends currently in use */
  u32 mDbFlags;                 /* flags recording internal state */
  u32 flags;                    /* flags settable by pragmas. See below */
  i64 lastRowid;                /* ROWID of most recent insert (see above) */
  i64 szMmap;                   /* Default mmap_size setting */
  u32 nSchemaLock;              /* Do not reset the schema when non-zero */
  unsigned int openFlags;       /* Flags passed to sqlite3_vfs.xOpen() */
  int errCode;                  /* Most recent error code (SQLITE_*) */
  int errMask;                  /* & result codes with this before returning */
  int iSysErrno;                /* Errno value from last system error */
................................................................................
#define SQLITE_DeferFKs       0x00080000  /* Defer all FK constraints */
#define SQLITE_QueryOnly      0x00100000  /* Disable database changes */
#define SQLITE_CellSizeCk     0x00200000  /* Check btree cell sizes on load */
#define SQLITE_Fts3Tokenizer  0x00400000  /* Enable fts3_tokenizer(2) */
#define SQLITE_EnableQPSG     0x00800000  /* Query Planner Stability Guarantee*/
#define SQLITE_TriggerEQP     0x01000000  /* Show trigger EXPLAIN QUERY PLAN */
#define SQLITE_ResetDatabase  0x02000000  /* Reset the database */




/* Flags used only if debugging */

#ifdef SQLITE_DEBUG
#define SQLITE_SqlTrace       0x08000000  /* Debug print SQL as it executes */
#define SQLITE_VdbeListing    0x10000000  /* Debug listings of VDBE programs */
#define SQLITE_VdbeTrace      0x20000000  /* True to trace VDBE execution */
#define SQLITE_VdbeAddopTrace 0x40000000  /* Trace sqlite3VdbeAddOp() calls */
#define SQLITE_VdbeEQP        0x80000000  /* Debug EXPLAIN QUERY PLAN */
#endif

/*
** Allowed values for sqlite3.mDbFlags
*/
#define DBFLAG_SchemaChange   0x0001  /* Uncommitted Hash table changes */
#define DBFLAG_PreferBuiltin  0x0002  /* Preference to built-in funcs */
................................................................................
/*
** The schema for each SQL table and view is represented in memory
** by an instance of the following structure.
*/
struct Table {
  char *zName;         /* Name of the table or view */
  Column *aCol;        /* Information about each column */



  Index *pIndex;       /* List of SQL indexes on this table. */
  Select *pSelect;     /* NULL for tables.  Points to definition if a view. */
  FKey *pFKey;         /* Linked list of all foreign keys in this table */
  char *zColAff;       /* String defining the affinity of each column */
  ExprList *pCheck;    /* All CHECK constraints */
                       /*   ... also used as column name list in a VIEW */
  int tnum;            /* Root BTree page for this table */
................................................................................
#define TF_HasStat1        0x0010    /* nRowLogEst set from sqlite_stat1 */
#define TF_WithoutRowid    0x0020    /* No rowid.  PRIMARY KEY is the key */
#define TF_NoVisibleRowid  0x0040    /* No user-visible "rowid" column */
#define TF_OOOHidden       0x0080    /* Out-of-Order hidden columns */
#define TF_StatsUsed       0x0100    /* Query planner decisions affected by
                                     ** Index.aiRowLogEst[] values */
#define TF_HasNotNull      0x0200    /* Contains NOT NULL constraints */


/*
** Test to see whether or not a table is a virtual table.  This is
** done as a macro so that it will be optimized out when virtual
** table support is omitted from the build.
*/
#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
  void *p;          /* Pointer to sampled record */
  int n;            /* Size of record in bytes */
  tRowcnt *anEq;    /* Est. number of rows where the key equals this sample */
  tRowcnt *anLt;    /* Est. number of rows where key is less than this sample */
  tRowcnt *anDLt;   /* Est. number of distinct keys less than this sample */
};







/*
** Each token coming out of the lexer is an instance of
** this structure.  Tokens are also used as part of an expression.
**
** The memory that "z" points to is owned by other objects.  Take care
** that the owner of the "z" string does not deallocate the string before
** the Token goes out of scope!  Very often, the "z" points to some place
................................................................................
                         ** TK_SELECT_COLUMN: column of the result vector */
  i16 iAgg;              /* Which entry in pAggInfo->aCol[] or ->aFunc[] */
  i16 iRightJoinTable;   /* If EP_FromJoin, the right table of the join */
  u8 op2;                /* TK_REGISTER: original value of Expr.op
                         ** TK_COLUMN: the value of p5 for OP_Column
                         ** TK_AGG_FUNCTION: nesting depth */
  AggInfo *pAggInfo;     /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */
  Table *pTab;           /* Table for TK_COLUMN expressions.  Can be NULL
                         ** for a column of an index on an expression */
#ifndef SQLITE_OMIT_WINDOWFUNC
  Window *pWin;          /* Window definition for window functions */
#endif
};

/*
** The following are the meanings of bits in the Expr.flags field.
*/
#define EP_FromJoin  0x000001 /* Originates in ON/USING clause of outer join */
#define EP_Agg       0x000002 /* Contains one or more aggregate functions */
................................................................................
#define EP_NoReduce  0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
#define EP_Unlikely  0x040000 /* unlikely() or likelihood() function */
#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
#define EP_Subquery  0x200000 /* Tree contains a TK_SELECT operator */
#define EP_Alias     0x400000 /* Is an alias for a result set column */
#define EP_Leaf      0x800000 /* Expr.pLeft, .pRight, .u.pSelect all NULL */


/*
** The EP_Propagate mask is a set of properties that automatically propagate
** upwards into parent nodes.
*/
#define EP_Propagate (EP_Collate|EP_Subquery|EP_HasFunc)

................................................................................
**    OPFLAG_SEEKEQ       == BTREE_SEEK_EQ
**    OPFLAG_FORDELETE    == BTREE_FORDELETE
**    OPFLAG_SAVEPOSITION == BTREE_SAVEPOSITION
**    OPFLAG_AUXDELETE    == BTREE_AUXDELETE
*/
#define OPFLAG_NCHANGE       0x01    /* OP_Insert: Set to update db->nChange */
                                     /* Also used in P2 (not P5) of OP_Delete */

#define OPFLAG_EPHEM         0x01    /* OP_Column: Ephemeral output is ok */
#define OPFLAG_LASTROWID     0x20    /* Set to update db->lastRowid */
#define OPFLAG_ISUPDATE      0x04    /* This OP_Insert is an sql UPDATE */
#define OPFLAG_APPEND        0x08    /* This is likely to be an append */
#define OPFLAG_USESEEKRESULT 0x10    /* Try to avoid a seek in BtreeInsert() */
#define OPFLAG_ISNOOP        0x40    /* OP_Delete does pre-update-hook only */
#define OPFLAG_LENGTHARG     0x40    /* OP_Column only used for length() */
................................................................................
SQLITE_PRIVATE int sqlite3IsIdChar(u8);

/*
** Internal function prototypes
*/
SQLITE_PRIVATE int sqlite3StrICmp(const char*,const char*);
SQLITE_PRIVATE int sqlite3Strlen30(const char*);

SQLITE_PRIVATE char *sqlite3ColumnType(Column*,char*);
#define sqlite3StrNICmp sqlite3_strnicmp

SQLITE_PRIVATE int sqlite3MallocInit(void);
SQLITE_PRIVATE void sqlite3MallocEnd(void);
SQLITE_PRIVATE void *sqlite3Malloc(u64);
SQLITE_PRIVATE void *sqlite3MallocZero(u64);
................................................................................
SQLITE_PRIVATE   void *sqlite3TestTextToPtr(const char*);
#endif

#if defined(SQLITE_DEBUG)
SQLITE_PRIVATE   void sqlite3TreeViewExpr(TreeView*, const Expr*, u8);
SQLITE_PRIVATE   void sqlite3TreeViewBareExprList(TreeView*, const ExprList*, const char*);
SQLITE_PRIVATE   void sqlite3TreeViewExprList(TreeView*, const ExprList*, u8, const char*);

SQLITE_PRIVATE   void sqlite3TreeViewSelect(TreeView*, const Select*, u8);
SQLITE_PRIVATE   void sqlite3TreeViewWith(TreeView*, const With*, u8);
#ifndef SQLITE_OMIT_WINDOWFUNC
SQLITE_PRIVATE   void sqlite3TreeViewWindow(TreeView*, const Window*, u8);
SQLITE_PRIVATE   void sqlite3TreeViewWinFunc(TreeView*, const Window*, u8);
#endif
#endif
................................................................................
#ifdef SQLITE_ENABLE_CURSOR_HINTS
SQLITE_PRIVATE int sqlite3ExprContainsSubquery(Expr*);
#endif
SQLITE_PRIVATE int sqlite3ExprIsInteger(Expr*, int*);
SQLITE_PRIVATE int sqlite3ExprCanBeNull(const Expr*);
SQLITE_PRIVATE int sqlite3ExprNeedsNoAffinityChange(const Expr*, char);
SQLITE_PRIVATE int sqlite3IsRowid(const char*);



SQLITE_PRIVATE void sqlite3GenerateRowDelete(
    Parse*,Table*,Trigger*,int,int,int,i16,u8,u8,u8,int);
SQLITE_PRIVATE void sqlite3GenerateRowIndexDelete(Parse*, Table*, int, int, int*, int);
SQLITE_PRIVATE int sqlite3GenerateIndexKey(Parse*, Index*, int, int, int, int*,Index*,int);
SQLITE_PRIVATE void sqlite3ResolvePartIdxLabel(Parse*,int);

SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(Parse*,Table*,int*,int,int,int,int,
                                     u8,u8,int,int*,int*,Upsert*);
#ifdef SQLITE_ENABLE_NULL_TRIM
SQLITE_PRIVATE   void sqlite3SetMakeRecordP5(Vdbe*,Table*);
#else
# define sqlite3SetMakeRecordP5(A,B)
#endif
................................................................................
SQLITE_PRIVATE void sqlite3UniqueConstraint(Parse*, int, Index*);
SQLITE_PRIVATE void sqlite3RowidConstraint(Parse*, int, Table*);
SQLITE_PRIVATE Expr *sqlite3ExprDup(sqlite3*,Expr*,int);
SQLITE_PRIVATE ExprList *sqlite3ExprListDup(sqlite3*,ExprList*,int);
SQLITE_PRIVATE SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int);
SQLITE_PRIVATE IdList *sqlite3IdListDup(sqlite3*,IdList*);
SQLITE_PRIVATE Select *sqlite3SelectDup(sqlite3*,Select*,int);



SQLITE_PRIVATE void sqlite3InsertBuiltinFuncs(FuncDef*,int);
SQLITE_PRIVATE FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,u8,u8);
SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void);
SQLITE_PRIVATE void sqlite3RegisterDateTimeFunctions(void);
SQLITE_PRIVATE void sqlite3RegisterPerConnectionBuiltinFunctions(sqlite3*);
SQLITE_PRIVATE int sqlite3SafetyCheckOk(sqlite3*);
SQLITE_PRIVATE int sqlite3SafetyCheckSickOrOk(sqlite3*);
................................................................................
SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr);
SQLITE_PRIVATE CollSeq *sqlite3ExprNNCollSeq(Parse *pParse, Expr *pExpr);
SQLITE_PRIVATE int sqlite3ExprCollSeqMatch(Parse*,Expr*,Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*);
SQLITE_PRIVATE Expr *sqlite3ExprSkipCollate(Expr*);
SQLITE_PRIVATE int sqlite3CheckCollSeq(Parse *, CollSeq *);

SQLITE_PRIVATE int sqlite3CheckObjectName(Parse *, const char *);
SQLITE_PRIVATE void sqlite3VdbeSetChanges(sqlite3 *, int);
SQLITE_PRIVATE int sqlite3AddInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3SubInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3MulInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3AbsInt32(int);
#ifdef SQLITE_ENABLE_8_3_NAMES
................................................................................
#endif
SQLITE_PRIVATE void sqlite3RootPageMoved(sqlite3*, int, int, int);
SQLITE_PRIVATE void sqlite3Reindex(Parse*, Token*, Token*);
SQLITE_PRIVATE void sqlite3AlterFunctions(void);
SQLITE_PRIVATE void sqlite3AlterRenameTable(Parse*, SrcList*, Token*);
SQLITE_PRIVATE void sqlite3AlterRenameColumn(Parse*, SrcList*, Token*, Token*);
SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *, int *);



SQLITE_PRIVATE void sqlite3NestedParse(Parse*, const char*, ...);
SQLITE_PRIVATE void sqlite3ExpirePreparedStatements(sqlite3*, int);
SQLITE_PRIVATE int sqlite3CodeSubselect(Parse*, Expr *, int, int);
SQLITE_PRIVATE void sqlite3SelectPrep(Parse*, Select*, NameContext*);
SQLITE_PRIVATE void sqlite3SelectWrongNumTermsError(Parse *pParse, Select *p);
SQLITE_PRIVATE int sqlite3MatchSpanName(const char*, const char*, const char*, const char*);
SQLITE_PRIVATE int sqlite3ResolveExprNames(NameContext*, Expr*);
................................................................................
SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3*, int, const char *);
SQLITE_PRIVATE int sqlite3VtabBegin(sqlite3 *, VTable *);
SQLITE_PRIVATE FuncDef *sqlite3VtabOverloadFunction(sqlite3 *,FuncDef*, int nArg, Expr*);
SQLITE_PRIVATE sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context*);
SQLITE_PRIVATE int sqlite3VdbeParameterIndex(Vdbe*, const char*, int);
SQLITE_PRIVATE int sqlite3TransferBindings(sqlite3_stmt *, sqlite3_stmt *);
SQLITE_PRIVATE void sqlite3ParserReset(Parse*);



SQLITE_PRIVATE int sqlite3Reprepare(Vdbe*);
SQLITE_PRIVATE void sqlite3ExprListCheckLength(Parse*, ExprList*, const char*);
SQLITE_PRIVATE CollSeq *sqlite3BinaryCompareCollSeq(Parse *, Expr *, Expr *);
SQLITE_PRIVATE int sqlite3TempInMemory(const sqlite3*);
SQLITE_PRIVATE const char *sqlite3JournalModename(int);
#ifndef SQLITE_OMIT_WAL
SQLITE_PRIVATE   int sqlite3Checkpoint(sqlite3*, int, int, int*, int*);
................................................................................
  bft usesStmtJournal:1;  /* True if uses a statement journal */
  bft readOnly:1;         /* True for statements that do not write */
  bft bIsReader:1;        /* True for statements that read */
  yDbMask btreeMask;      /* Bitmask of db->aDb[] entries referenced */
  yDbMask lockMask;       /* Subset of btreeMask that requires a lock */
  u32 aCounter[7];        /* Counters used by sqlite3_stmt_status() */
  char *zSql;             /* Text of the SQL statement that generated this */



  void *pFree;            /* Free this when deleting the vdbe */
  VdbeFrame *pFrame;      /* Parent frame */
  VdbeFrame *pDelFrame;   /* List of frame objects to free on VM reset */
  int nFrame;             /* Number of frames in pFrame list */
  u32 expmask;            /* Binding to these vars invalidates VM */
  SubProgram *pProgram;   /* Linked list of all sub-programs used by VM */
  AuxData *pAuxData;      /* Linked list of auxdata allocations */
................................................................................
      sqlite3TreeViewSelect(pView, pCte->pSelect, 0);
      sqlite3TreeViewPop(pView);
    }
    sqlite3TreeViewPop(pView);
  }
}






































/*
** Generate a human-readable description of a Select object.
*/
SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){
  int n = 0;
  int cnt = 0;
................................................................................
      for(pX=p->pWin; pX; pX=pX->pNextWin){
        sqlite3TreeViewWinFunc(pView, pX, pX->pNextWin!=0);
      }
      sqlite3TreeViewPop(pView);
    }
#endif
    if( p->pSrc && p->pSrc->nSrc ){
      int i;
      pView = sqlite3TreeViewPush(pView, (n--)>0);
      sqlite3TreeViewLine(pView, "FROM");
      for(i=0; i<p->pSrc->nSrc; i++){
        struct SrcList_item *pItem = &p->pSrc->a[i];
        StrAccum x;
        char zLine[100];
        sqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
        sqlite3_str_appendf(&x, "{%d,*}", pItem->iCursor);
        if( pItem->zDatabase ){
          sqlite3_str_appendf(&x, " %s.%s", pItem->zDatabase, pItem->zName);
        }else if( pItem->zName ){
          sqlite3_str_appendf(&x, " %s", pItem->zName);
        }
        if( pItem->pTab ){
          sqlite3_str_appendf(&x, " tabname=%Q", pItem->pTab->zName);
        }
        if( pItem->zAlias ){
          sqlite3_str_appendf(&x, " (AS %s)", pItem->zAlias);
        }
        if( pItem->fg.jointype & JT_LEFT ){
          sqlite3_str_appendf(&x, " LEFT-JOIN");
        }
        sqlite3StrAccumFinish(&x);
        sqlite3TreeViewItem(pView, zLine, i<p->pSrc->nSrc-1); 
        if( pItem->pSelect ){
          sqlite3TreeViewSelect(pView, pItem->pSelect, 0);
        }
        if( pItem->fg.isTabFunc ){
          sqlite3TreeViewExprList(pView, pItem->u1.pFuncArg, 0, "func-args:");
        }
        sqlite3TreeViewPop(pView);
      }
      sqlite3TreeViewPop(pView);
    }
    if( p->pWhere ){
      sqlite3TreeViewItem(pView, "WHERE", (n--)>0);
      sqlite3TreeViewExpr(pView, p->pWhere, 0);
      sqlite3TreeViewPop(pView);
    }
................................................................................
      Window *pWin;
      if( ExprHasProperty(pExpr, EP_TokenOnly) ){
        pFarg = 0;
        pWin = 0;
      }else{
        pFarg = pExpr->x.pList;
#ifndef SQLITE_OMIT_WINDOWFUNC
        pWin = pExpr->pWin;
#else
        pWin = 0;
#endif 
      }
      if( pExpr->op==TK_AGG_FUNCTION ){
        sqlite3TreeViewLine(pView, "AGG_FUNCTION%d %Q",
                             pExpr->op2, pExpr->u.zToken);
................................................................................
    ** 0x9e3779b1 is 2654435761 which is the closest prime number to
    ** (2**32)*golden_ratio, where golden_ratio = (sqrt(5) - 1)/2. */
    h += sqlite3UpperToLower[c];
    h *= 0x9e3779b1;
  }
  return h;
}
















/* Link pNew element into the hash table pH.  If pEntry!=0 then also
** insert pNew into the pEntry hash bucket.
*/
static void insertElement(
  Hash *pH,              /* The complete hash table */
................................................................................
    if( sqlite3StrICmp(elem->pKey,pKey)==0 ){ 
      return elem;
    }
    elem = elem->next;
  }
  return &nullElement;
}



































/* Remove a single entry from the hash table given a pointer to that
** element and a hash on the element's key.
*/
static void removeElementGivenHash(
  Hash *pH,         /* The pH containing "elem" */
  HashElem* elem,   /* The element to be removed from the pH */
................................................................................
** found, or NULL if there is no match.
*/
SQLITE_PRIVATE void *sqlite3HashFind(const Hash *pH, const char *pKey){
  assert( pH!=0 );
  assert( pKey!=0 );
  return findElementWithHash(pH, pKey, 0)->data;
}









/* Insert an element into the hash table pH.  The key is pKey
** and the data is "data".
**
** If no element exists with a matching key, then a new
** element is created and NULL is returned.
**
................................................................................

/*
** Allowed values of unixFile.fsFlags
*/
#define SQLITE_FSFLAGS_IS_MSDOS     0x1

/*
** If we are to be thread-safe, include the pthreads header and define
** the SQLITE_UNIX_THREADS macro.
*/
#if SQLITE_THREADSAFE
/* # include <pthread.h> */
# define SQLITE_UNIX_THREADS 1
#endif

/*
** Default permissions when creating a new file
*/
#ifndef SQLITE_DEFAULT_FILE_PERMISSIONS
# define SQLITE_DEFAULT_FILE_PERMISSIONS 0644
................................................................................
  { "lstat",         (sqlite3_syscall_ptr)lstat,          0 },
#else
  { "lstat",         (sqlite3_syscall_ptr)0,              0 },
#endif
#define osLstat      ((int(*)(const char*,struct stat*))aSyscall[27].pCurrent)

#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)



  { "ioctl",         (sqlite3_syscall_ptr)ioctl,          0 },

#else
  { "ioctl",         (sqlite3_syscall_ptr)0,              0 },
#endif
#define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)

}; /* End of the overrideable system calls */

................................................................................
  /* WAS:  ino_t ino;   */
  u64 ino;                   /* Inode number */
#endif
};

/*
** An instance of the following structure is allocated for each open
** inode.  Or, on LinuxThreads, there is one of these structures for
** each inode opened by each thread.
**
** A single inode can have multiple file descriptors, so each unixFile
** structure contains a pointer to an instance of this object and this
** object keeps a count of the number of unixFile pointing to it.
**
** Mutex rules:
**
................................................................................
  sem_t *pSem;                    /* Named POSIX semaphore */
  char aSemName[MAX_PATHNAME+2];  /* Name of that semaphore */
#endif
};

/*
** A lists of all unixInodeInfo objects.


*/
static unixInodeInfo *inodeList = 0;  /* All unixInodeInfo objects */

#ifdef SQLITE_DEBUG
/*
** True if the inode mutex is held, or not.  Used only within assert()
** to help verify correct mutex usage.

*/
int unixFileMutexHeld(unixFile *pFile){
  assert( pFile->pInode );
  return sqlite3_mutex_held(pFile->pInode->pLockMutex);
}
int unixFileMutexNotheld(unixFile *pFile){
  assert( pFile->pInode );
................................................................................
  }
  pInode->pUnused = 0;
}

/*
** Release a unixInodeInfo structure previously allocated by findInodeInfo().
**
** The mutex entered using the unixEnterMutex() function must be held
** when this function is called.
*/
static void releaseInodeInfo(unixFile *pFile){
  unixInodeInfo *pInode = pFile->pInode;
  assert( unixMutexHeld() );
  assert( unixFileMutexNotheld(pFile) );
  if( ALWAYS(pInode) ){
    pInode->nRef--;
................................................................................
}

/*
** Given a file descriptor, locate the unixInodeInfo object that
** describes that file descriptor.  Create a new one if necessary.  The
** return value might be uninitialized if an error occurs.
**
** The mutex entered using the unixEnterMutex() function must be held
** when this function is called.
**
** Return an appropriate error code.
*/
static int findInodeInfo(
  unixFile *pFile,               /* Unix file with file desc used in the key */
  unixInodeInfo **ppInode        /* Return the unixInodeInfo object here */
){
................................................................................
  memset(&fileId, 0, sizeof(fileId));
  fileId.dev = statbuf.st_dev;
#if OS_VXWORKS
  fileId.pId = pFile->pId;
#else
  fileId.ino = (u64)statbuf.st_ino;
#endif

  pInode = inodeList;
  while( pInode && memcmp(&fileId, &pInode->fileId, sizeof(fileId)) ){
    pInode = pInode->pNext;
  }
  if( pInode==0 ){
    pInode = sqlite3_malloc64( sizeof(*pInode) );
    if( pInode==0 ){
................................................................................
      pInode->pLockMutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
      if( pInode->pLockMutex==0 ){
        sqlite3_free(pInode);
        return SQLITE_NOMEM_BKPT;
      }
    }
    pInode->nRef = 1;

    pInode->pNext = inodeList;
    pInode->pPrev = 0;
    if( inodeList ) inodeList->pPrev = pInode;
    inodeList = pInode;
  }else{
    pInode->nRef++;
  }
................................................................................
** unixMutexHeld() must be true when creating or destroying
** this object or while reading or writing the following fields:
**
**      nRef
**
** The following fields are read-only after the object is created:
** 
**      fid
**      zFilename
**
** Either unixShmNode.mutex must be held or unixShmNode.nRef==0 and
** unixMutexHeld() is true when reading or writing any other field
** in this structure.
*/
struct unixShmNode {
  unixInodeInfo *pInode;     /* unixInodeInfo that owns this SHM node */
  sqlite3_mutex *mutex;      /* Mutex to access this object */
  char *zFilename;           /* Name of the mmapped file */
  int h;                     /* Open file descriptor */
  int szRegion;              /* Size of shared-memory regions */
  u16 nRegion;               /* Size of array apRegion */
  u8 isReadonly;             /* True if read-only */
  u8 isUnlocked;             /* True if no DMS lock held */
  char **apRegion;           /* Array of mapped shared-memory regions */
  int nRef;                  /* Number of unixShm objects pointing to this */
  unixShm *pFirst;           /* All unixShm objects pointing to this */
................................................................................
/*
** Structure used internally by this VFS to record the state of an
** open shared memory connection.
**
** The following fields are initialized when this object is created and
** are read-only thereafter:
**
**    unixShm.pFile
**    unixShm.id
**
** All other fields are read/write.  The unixShm.pFile->mutex must be held
** while accessing any read/write fields.
*/
struct unixShm {
  unixShmNode *pShmNode;     /* The underlying unixShmNode object */
  unixShm *pNext;            /* Next unixShm with the same unixShmNode */
  u8 hasMutex;               /* True if holding the unixShmNode mutex */
  u8 id;                     /* Id of this connection within its unixShmNode */
  u16 sharedMask;            /* Mask of shared locks held */
  u16 exclMask;              /* Mask of exclusive locks held */
};

/*
** Constants used for locking
................................................................................
){
  unixShmNode *pShmNode; /* Apply locks to this open shared-memory segment */
  struct flock f;        /* The posix advisory locking structure */
  int rc = SQLITE_OK;    /* Result code form fcntl() */

  /* Access to the unixShmNode object is serialized by the caller */
  pShmNode = pFile->pInode->pShmNode;
  assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->mutex) );


  /* Shared locks never span more than one byte */
  assert( n==1 || lockType!=F_RDLCK );

  /* Locks are within range */
  assert( n>=1 && n<=SQLITE_SHM_NLOCK );

  if( pShmNode->h>=0 ){
    /* Initialize the locking parameters */
    f.l_type = lockType;
    f.l_whence = SEEK_SET;
    f.l_start = ofst;
    f.l_len = n;
    rc = osSetPosixAdvisoryLock(pShmNode->h, &f, pFile);
    rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY;
  }

  /* Update the global lock state and do debug tracing */
#ifdef SQLITE_DEBUG
  { u16 mask;
  OSTRACE(("SHM-LOCK "));
................................................................................
static void unixShmPurge(unixFile *pFd){
  unixShmNode *p = pFd->pInode->pShmNode;
  assert( unixMutexHeld() );
  if( p && ALWAYS(p->nRef==0) ){
    int nShmPerMap = unixShmRegionPerMap();
    int i;
    assert( p->pInode==pFd->pInode );
    sqlite3_mutex_free(p->mutex);
    for(i=0; i<p->nRegion; i+=nShmPerMap){
      if( p->h>=0 ){
        osMunmap(p->apRegion[i], p->szRegion);
      }else{
        sqlite3_free(p->apRegion[i]);
      }
    }
    sqlite3_free(p->apRegion);
    if( p->h>=0 ){
      robust_close(pFd, p->h, __LINE__);
      p->h = -1;
    }
    p->pInode->pShmNode = 0;
    sqlite3_free(p);
  }
}

/*
................................................................................
  ** process might open and use the *-shm file without truncating it.
  ** And if the *-shm file has been corrupted by a power failure or
  ** system crash, the database itself may also become corrupt.  */
  lock.l_whence = SEEK_SET;
  lock.l_start = UNIX_SHM_DMS;
  lock.l_len = 1;
  lock.l_type = F_WRLCK;
  if( osFcntl(pShmNode->h, F_GETLK, &lock)!=0 ) {
    rc = SQLITE_IOERR_LOCK;
  }else if( lock.l_type==F_UNLCK ){
    if( pShmNode->isReadonly ){
      pShmNode->isUnlocked = 1;
      rc = SQLITE_READONLY_CANTINIT;
    }else{
      rc = unixShmSystemLock(pDbFd, F_WRLCK, UNIX_SHM_DMS, 1);





      if( rc==SQLITE_OK && robust_ftruncate(pShmNode->h, 0) ){
        rc = unixLogError(SQLITE_IOERR_SHMOPEN,"ftruncate",pShmNode->zFilename);
      }
    }
  }else if( lock.l_type==F_WRLCK ){
    rc = SQLITE_BUSY;
  }

................................................................................
    sqlite3_snprintf(nShmFilename, zShm, 
                     SQLITE_SHM_DIRECTORY "/sqlite-shm-%x-%x",
                     (u32)sStat.st_ino, (u32)sStat.st_dev);
#else
    sqlite3_snprintf(nShmFilename, zShm, "%s-shm", zBasePath);
    sqlite3FileSuffix3(pDbFd->zPath, zShm);
#endif
    pShmNode->h = -1;
    pDbFd->pInode->pShmNode = pShmNode;
    pShmNode->pInode = pDbFd->pInode;
    if( sqlite3GlobalConfig.bCoreMutex ){
      pShmNode->mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
      if( pShmNode->mutex==0 ){
        rc = SQLITE_NOMEM_BKPT;
        goto shm_open_err;
      }
    }

    if( pInode->bProcessLock==0 ){
      if( 0==sqlite3_uri_boolean(pDbFd->zPath, "readonly_shm", 0) ){
        pShmNode->h = robust_open(zShm, O_RDWR|O_CREAT, (sStat.st_mode&0777));
      }
      if( pShmNode->h<0 ){
        pShmNode->h = robust_open(zShm, O_RDONLY, (sStat.st_mode&0777));
        if( pShmNode->h<0 ){
          rc = unixLogError(SQLITE_CANTOPEN_BKPT, "open", zShm);
          goto shm_open_err;
        }
        pShmNode->isReadonly = 1;
      }

      /* If this process is running as root, make sure that the SHM file
      ** is owned by the same user that owns the original database.  Otherwise,
      ** the original owner will not be able to connect.
      */
      robustFchown(pShmNode->h, sStat.st_uid, sStat.st_gid);

      rc = unixLockSharedMemory(pDbFd, pShmNode);
      if( rc!=SQLITE_OK && rc!=SQLITE_READONLY_CANTINIT ) goto shm_open_err;
    }
  }

  /* Make the new connection a child of the unixShmNode */
................................................................................
  pDbFd->pShm = p;
  unixLeaveMutex();

  /* The reference count on pShmNode has already been incremented under
  ** the cover of the unixEnterMutex() mutex and the pointer from the
  ** new (struct unixShm) object to the pShmNode has been set. All that is
  ** left to do is to link the new object into the linked list starting
  ** at pShmNode->pFirst. This must be done while holding the pShmNode->mutex 
  ** mutex.
  */
  sqlite3_mutex_enter(pShmNode->mutex);
  p->pNext = pShmNode->pFirst;
  pShmNode->pFirst = p;
  sqlite3_mutex_leave(pShmNode->mutex);
  return rc;

  /* Jump here on any error */
shm_open_err:
  unixShmPurge(pDbFd);       /* This call frees pShmNode if required */
  sqlite3_free(p);
  unixLeaveMutex();
................................................................................
  if( pDbFd->pShm==0 ){
    rc = unixOpenSharedMemory(pDbFd);
    if( rc!=SQLITE_OK ) return rc;
  }

  p = pDbFd->pShm;
  pShmNode = p->pShmNode;
  sqlite3_mutex_enter(pShmNode->mutex);
  if( pShmNode->isUnlocked ){
    rc = unixLockSharedMemory(pDbFd, pShmNode);
    if( rc!=SQLITE_OK ) goto shmpage_out;
    pShmNode->isUnlocked = 0;
  }
  assert( szRegion==pShmNode->szRegion || pShmNode->nRegion==0 );
  assert( pShmNode->pInode==pDbFd->pInode );
  assert( pShmNode->h>=0 || pDbFd->pInode->bProcessLock==1 );
  assert( pShmNode->h<0 || pDbFd->pInode->bProcessLock==0 );

  /* Minimum number of regions required to be mapped. */
  nReqRegion = ((iRegion+nShmPerMap) / nShmPerMap) * nShmPerMap;

  if( pShmNode->nRegion<nReqRegion ){
    char **apNew;                      /* New apRegion[] array */
    int nByte = nReqRegion*szRegion;   /* Minimum required file size */
    struct stat sStat;                 /* Used by fstat() */

    pShmNode->szRegion = szRegion;

    if( pShmNode->h>=0 ){
      /* The requested region is not mapped into this processes address space.
      ** Check to see if it has been allocated (i.e. if the wal-index file is
      ** large enough to contain the requested region).
      */
      if( osFstat(pShmNode->h, &sStat) ){
        rc = SQLITE_IOERR_SHMSIZE;
        goto shmpage_out;
      }
  
      if( sStat.st_size<nByte ){
        /* The requested memory region does not exist. If bExtend is set to
        ** false, exit early. *pp will be set to NULL and SQLITE_OK returned.
................................................................................
          static const int pgsz = 4096;
          int iPg;

          /* Write to the last byte of each newly allocated or extended page */
          assert( (nByte % pgsz)==0 );
          for(iPg=(sStat.st_size/pgsz); iPg<(nByte/pgsz); iPg++){
            int x = 0;
            if( seekAndWriteFd(pShmNode->h, iPg*pgsz + pgsz-1, "", 1, &x)!=1 ){
              const char *zFile = pShmNode->zFilename;
              rc = unixLogError(SQLITE_IOERR_SHMSIZE, "write", zFile);
              goto shmpage_out;
            }
          }
        }
      }
................................................................................
      goto shmpage_out;
    }
    pShmNode->apRegion = apNew;
    while( pShmNode->nRegion<nReqRegion ){
      int nMap = szRegion*nShmPerMap;
      int i;
      void *pMem;
      if( pShmNode->h>=0 ){
        pMem = osMmap(0, nMap,
            pShmNode->isReadonly ? PROT_READ : PROT_READ|PROT_WRITE, 
            MAP_SHARED, pShmNode->h, szRegion*(i64)pShmNode->nRegion
        );
        if( pMem==MAP_FAILED ){
          rc = unixLogError(SQLITE_IOERR_SHMMAP, "mmap", pShmNode->zFilename);
          goto shmpage_out;
        }
      }else{
        pMem = sqlite3_malloc64(szRegion);
        if( pMem==0 ){
          rc = SQLITE_NOMEM_BKPT;
          goto shmpage_out;
        }
        memset(pMem, 0, szRegion);
      }

      for(i=0; i<nShmPerMap; i++){
        pShmNode->apRegion[pShmNode->nRegion+i] = &((char*)pMem)[szRegion*i];
      }
      pShmNode->nRegion += nShmPerMap;
    }
................................................................................
shmpage_out:
  if( pShmNode->nRegion>iRegion ){
    *pp = pShmNode->apRegion[iRegion];
  }else{
    *pp = 0;
  }
  if( pShmNode->isReadonly && rc==SQLITE_OK ) rc = SQLITE_READONLY;
  sqlite3_mutex_leave(pShmNode->mutex);
  return rc;
}

/*
** Change the lock state for a shared-memory segment.
**
** Note that the relationship between SHAREd and EXCLUSIVE locks is a little
................................................................................
  assert( ofst>=0 && ofst+n<=SQLITE_SHM_NLOCK );
  assert( n>=1 );
  assert( flags==(SQLITE_SHM_LOCK | SQLITE_SHM_SHARED)
       || flags==(SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE)
       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED)
       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE) );
  assert( n==1 || (flags & SQLITE_SHM_EXCLUSIVE)!=0 );
  assert( pShmNode->h>=0 || pDbFd->pInode->bProcessLock==1 );
  assert( pShmNode->h<0 || pDbFd->pInode->bProcessLock==0 );

  mask = (1<<(ofst+n)) - (1<<ofst);
  assert( n>1 || mask==(1<<ofst) );
  sqlite3_mutex_enter(pShmNode->mutex);
  if( flags & SQLITE_SHM_UNLOCK ){
    u16 allMask = 0; /* Mask of locks held by siblings */

    /* See if any siblings hold this same lock */
    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
      if( pX==p ) continue;
      assert( (pX->exclMask & (p->exclMask|p->sharedMask))==0 );
................................................................................
      rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n);
      if( rc==SQLITE_OK ){
        assert( (p->sharedMask & mask)==0 );
        p->exclMask |= mask;
      }
    }
  }
  sqlite3_mutex_leave(pShmNode->mutex);
  OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n",
           p->id, osGetpid(0), p->sharedMask, p->exclMask));
  return rc;
}

/*
** Implement a memory barrier or memory fence on shared memory.  
................................................................................
  pShmNode = p->pShmNode;

  assert( pShmNode==pDbFd->pInode->pShmNode );
  assert( pShmNode->pInode==pDbFd->pInode );

  /* Remove connection p from the set of connections associated
  ** with pShmNode */
  sqlite3_mutex_enter(pShmNode->mutex);
  for(pp=&pShmNode->pFirst; (*pp)!=p; pp = &(*pp)->pNext){}
  *pp = p->pNext;

  /* Free the connection p */
  sqlite3_free(p);
  pDbFd->pShm = 0;
  sqlite3_mutex_leave(pShmNode->mutex);

  /* If pShmNode->nRef has reached 0, then close the underlying
  ** shared-memory file, too */
  assert( unixFileMutexNotheld(pDbFd) );
  unixEnterMutex();
  assert( pShmNode->nRef>0 );
  pShmNode->nRef--;
  if( pShmNode->nRef==0 ){
    if( deleteFlag && pShmNode->h>=0 ){
      osUnlink(pShmNode->zFilename);
    }
    unixShmPurge(pDbFd);
  }
  unixLeaveMutex();

  return SQLITE_OK;
................................................................................
**   such that p was added to the list more recently than p->pDirtyNext.
**   PCache.pDirty points to the first (newest) element in the list and
**   pDirtyTail to the last (oldest).
**
**   The PCache.pSynced variable is used to optimize searching for a dirty
**   page to eject from the cache mid-transaction. It is better to eject
**   a page that does not require a journal sync than one that does. 
**   Therefore, pSynced is maintained to that it *almost* always points
**   to either the oldest page in the pDirty/pDirtyTail list that has a
**   clear PGHDR_NEED_SYNC flag or to a page that is older than this one
**   (so that the right page to eject can be found by following pDirtyPrev
**   pointers).
*/
struct PCache {
  PgHdr *pDirty, *pDirtyTail;         /* List of dirty pages in LRU order */
................................................................................
SQLITE_PRIVATE void sqlite3PagerSetCodec(
  Pager *pPager,
  void *(*xCodec)(void*,void*,Pgno,int),
  void (*xCodecSizeChng)(void*,int,int),
  void (*xCodecFree)(void*),
  void *pCodec
){

  if( pPager->xCodecFree ) pPager->xCodecFree(pPager->pCodec);
  pPager->xCodec = pPager->memDb ? 0 : xCodec;
  pPager->xCodecSizeChng = xCodecSizeChng;
  pPager->xCodecFree = xCodecFree;
  pPager->pCodec = pCodec;
  setGetterMethod(pPager);
  pagerReportSize(pPager);
................................................................................
      pBt->usableSize = usableSize;
      pBt->pageSize = pageSize;
      freeTempSpace(pBt);
      rc = sqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize,
                                   pageSize-usableSize);
      return rc;
    }
    if( (pBt->db->flags & SQLITE_WriteSchema)==0 && nPage>nPageFile ){
      rc = SQLITE_CORRUPT_BKPT;
      goto page1_init_failed;
    }
    /* EVIDENCE-OF: R-28312-64704 However, the usable size is not allowed to
    ** be less than 480. In other words, if the page size is 512, then the
    ** reserved space size cannot exceed 32. */
    if( usableSize<480 ){
................................................................................
  Pager *pPager = pBt->pPager;
  int rc;

  assert( eType==PTRMAP_OVERFLOW2 || eType==PTRMAP_OVERFLOW1 || 
      eType==PTRMAP_BTREE || eType==PTRMAP_ROOTPAGE );
  assert( sqlite3_mutex_held(pBt->mutex) );
  assert( pDbPage->pBt==pBt );


  /* Move page iDbPage from its current location to page number iFreePage */
  TRACE(("AUTOVACUUM: Moving %d to free page %d (ptr page %d type %d)\n", 
      iDbPage, iFreePage, iPtrPage, eType));
  rc = sqlite3PagerMovepage(pPager, pDbPage->pDbPage, iFreePage, isCommit);
  if( rc!=SQLITE_OK ){
    return rc;
................................................................................
  */
  if( fg & MEM_Int ){
    sqlite3_snprintf(nByte, pMem->z, "%lld", pMem->u.i);
  }else{
    assert( fg & MEM_Real );
    sqlite3_snprintf(nByte, pMem->z, "%!.15g", pMem->u.r);
  }

  pMem->n = sqlite3Strlen30(pMem->z);
  pMem->enc = SQLITE_UTF8;
  pMem->flags |= MEM_Str|MEM_Term;
  if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real);
  sqlite3VdbeChangeEncoding(pMem, enc);
  return SQLITE_OK;
}

................................................................................
  if( p==0 ) return;
  p->prepFlags = prepFlags;
  if( (prepFlags & SQLITE_PREPARE_SAVESQL)==0 ){
    p->expmask = 0;
  }
  assert( p->zSql==0 );
  p->zSql = sqlite3DbStrNDup(p->db, z, n);







}

/*
** Swap all content between two VDBE structures.
*/
SQLITE_PRIVATE void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
  Vdbe tmp, *pTmp;
................................................................................
  pB->pNext = pTmp;
  pTmp = pA->pPrev;
  pA->pPrev = pB->pPrev;
  pB->pPrev = pTmp;
  zTmp = pA->zSql;
  pA->zSql = pB->zSql;
  pB->zSql = zTmp;





  pB->expmask = pA->expmask;
  pB->prepFlags = pA->prepFlags;
  memcpy(pB->aCounter, pA->aCounter, sizeof(pB->aCounter));
  pB->aCounter[SQLITE_STMTSTATUS_REPREPARE]++;
}

/*
................................................................................
    releaseMemArray(p->aVar, p->nVar);
    sqlite3DbFree(db, p->pVList);
    sqlite3DbFree(db, p->pFree);
  }
  vdbeFreeOpArray(db, p->aOp, p->nOp);
  sqlite3DbFree(db, p->aColName);
  sqlite3DbFree(db, p->zSql);



#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
  {
    int i;
    for(i=0; i<p->nScan; i++){
      sqlite3DbFree(db, p->aScan[i].zName);
    }
    sqlite3DbFree(db, p->aScan);
................................................................................
    return rc;
  }

  /* The index entry must begin with a header size */
  (void)getVarint32((u8*)m.z, szHdr);
  testcase( szHdr==3 );
  testcase( szHdr==m.n );


  if( unlikely(szHdr<3 || (int)szHdr>m.n) ){
    goto idx_rowid_corruption;
  }

  /* The last field of the index should be an integer - the ROWID.
  ** Verify that the last entry really is an integer. */
  (void)getVarint32((u8*)&m.z[szHdr-1], typeRowid);
  testcase( typeRowid==1 );
................................................................................
    z = sqlite3VdbeExpandSql(p, zSql);
    sqlite3_mutex_leave(p->db->mutex);
  }
  return z;
#endif
}











#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/*
** Allocate and populate an UnpackedRecord structure based on the serialized
** record in nKey/pKey. Return a pointer to the new UnpackedRecord structure
** if successful, or a NULL pointer if an OOM error is encountered.
*/
static UnpackedRecord *vdbeUnpackRecord(
................................................................................
  }else{
    /* Rare case of a really large header */
    nVarint = sqlite3VarintLen(nHdr);
    nHdr += nVarint;
    if( nVarint<sqlite3VarintLen(nHdr) ) nHdr++;
  }
  nByte = nHdr+nData;
  if( nByte+nZero>db->aLimit[SQLITE_LIMIT_LENGTH] ){
    goto too_big;
  }

  /* Make sure the output register has a buffer large enough to store 
  ** the new record. The output register (pOp->p3) is not allowed to
  ** be one of the input registers (because the following call to
  ** sqlite3VdbeMemClearAndResize() could clobber the value before it is used).
  */










  if( sqlite3VdbeMemClearAndResize(pOut, (int)nByte) ){
    goto no_mem;

  }
  zNewRecord = (u8 *)pOut->z;

  /* Write the record */
  i = putVarint32(zNewRecord, nHdr);
  j = nHdr;
  assert( pData0<=pLast );
................................................................................
    db->mDbFlags |= DBFLAG_SchemaChange;
    p->expired = 0;
  }else
#endif
  {
    zMaster = MASTER_NAME;
    initData.db = db;
    initData.iDb = pOp->p1;
    initData.pzErrMsg = &p->zErrMsg;
    initData.mInitFlags = 0;
    zSql = sqlite3MPrintf(db,
       "SELECT name, rootpage, sql FROM '%q'.%s WHERE %s ORDER BY rowid",
       db->aDb[iDb].zDbSName, zMaster, pOp->p4.z);
    if( zSql==0 ){
      rc = SQLITE_NOMEM_BKPT;
................................................................................
** Synopsis: r[P3]=vcolumn(P2)
**
** Store in register P3 the value of the P2-th column of
** the current row of the virtual-table of cursor P1.
**
** If the VColumn opcode is being used to fetch the value of
** an unchanging column during an UPDATE operation, then the P5
** value is 1.  Otherwise, P5 is 0.  The P5 value is returned
** by sqlite3_vtab_nochange() routine and can be used
** by virtual table implementations to return special "no-change"
** marks which can be more efficient, depending on the virtual table.

*/
case OP_VColumn: {
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
  Mem *pDest;
  sqlite3_context sContext;

................................................................................
    break;
  }
  pVtab = pCur->uc.pVCur->pVtab;
  pModule = pVtab->pModule;
  assert( pModule->xColumn );
  memset(&sContext, 0, sizeof(sContext));
  sContext.pOut = pDest;

  if( pOp->p5 ){
    sqlite3VdbeMemSetNull(pDest);
    pDest->flags = MEM_Null|MEM_Zero;
    pDest->u.nZero = 0;
  }else{
    MemSetTypeFlag(pDest, MEM_Null);
  }
  rc = pModule->xColumn(pCur->uc.pVCur, &sContext, pOp->p2);
................................................................................
** P4 is a pointer to a virtual table object, an sqlite3_vtab structure.
** This opcode invokes the corresponding xRename method. The value
** in register P1 is passed as the zName argument to the xRename method.
*/
case OP_VRename: {
  sqlite3_vtab *pVtab;
  Mem *pName;




  pVtab = pOp->p4.pVtab->pVtab;
  pName = &aMem[pOp->p1];
  assert( pVtab->pModule->xRename );
  assert( memIsValid(pName) );
  assert( p->readOnly==0 );
  REGISTER_TRACE(pOp->p1, pName);
  assert( pName->flags & MEM_Str );
  testcase( pName->enc==SQLITE_UTF8 );
  testcase( pName->enc==SQLITE_UTF16BE );
  testcase( pName->enc==SQLITE_UTF16LE );
  rc = sqlite3VdbeChangeEncoding(pName, SQLITE_UTF8);
  if( rc ) goto abort_due_to_error;
  rc = pVtab->pModule->xRename(pVtab, pName->z);

  sqlite3VtabImportErrmsg(p, pVtab);
  p->expired = 0;
  if( rc ) goto abort_due_to_error;
  break;
}
#endif

................................................................................
        continue;
      }else if( ExprHasProperty(pExpr, EP_xIsSelect) ){
        if( sqlite3WalkSelect(pWalker, pExpr->x.pSelect) ) return WRC_Abort;
      }else if( pExpr->x.pList ){
        if( sqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
      }
#ifndef SQLITE_OMIT_WINDOWFUNC
      if( !ExprHasProperty(pExpr, EP_Reduced) && pExpr->pWin ){
        Window *pWin = pExpr->pWin;
        if( sqlite3WalkExprList(pWalker, pWin->pPartition) ) return WRC_Abort;
        if( sqlite3WalkExprList(pWalker, pWin->pOrderBy) ) return WRC_Abort;
        if( sqlite3WalkExpr(pWalker, pWin->pFilter) ) return WRC_Abort;
      }
#endif
    }
    break;
................................................................................
** expression node refer back to that source column.  The following changes
** are made to pExpr:
**
**    pExpr->iDb           Set the index in db->aDb[] of the database X
**                         (even if X is implied).
**    pExpr->iTable        Set to the cursor number for the table obtained
**                         from pSrcList.
**    pExpr->pTab          Points to the Table structure of X.Y (even if
**                         X and/or Y are implied.)
**    pExpr->iColumn       Set to the column number within the table.
**    pExpr->op            Set to TK_COLUMN.
**    pExpr->pLeft         Any expression this points to is deleted
**    pExpr->pRight        Any expression this points to is deleted.
**
** The zDb variable is the name of the database (the "X").  This value may be
................................................................................

  assert( pNC );     /* the name context cannot be NULL. */
  assert( zCol );    /* The Z in X.Y.Z cannot be NULL */
  assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) );

  /* Initialize the node to no-match */
  pExpr->iTable = -1;
  pExpr->pTab = 0;
  ExprSetVVAProperty(pExpr, EP_NoReduce);

  /* Translate the schema name in zDb into a pointer to the corresponding
  ** schema.  If not found, pSchema will remain NULL and nothing will match
  ** resulting in an appropriate error message toward the end of this routine
  */
  if( zDb ){
................................................................................
        if( zTab ){
          const char *zTabName = pItem->zAlias ? pItem->zAlias : pTab->zName;
          assert( zTabName!=0 );
          if( sqlite3StrICmp(zTabName, zTab)!=0 ){
            continue;
          }
          if( IN_RENAME_OBJECT && pItem->zAlias ){
            sqlite3RenameTokenRemap(pParse, 0, (void*)&pExpr->pTab);
          }
        }
        if( 0==(cntTab++) ){
          pMatch = pItem;
        }
        for(j=0, pCol=pTab->aCol; j<pTab->nCol; j++, pCol++){
          if( sqlite3StrICmp(pCol->zName, zCol)==0 ){
................................................................................
            pExpr->iColumn = j==pTab->iPKey ? -1 : (i16)j;
            break;
          }
        }
      }
      if( pMatch ){
        pExpr->iTable = pMatch->iCursor;
        pExpr->pTab = pMatch->pTab;
        /* RIGHT JOIN not (yet) supported */
        assert( (pMatch->fg.jointype & JT_RIGHT)==0 );
        if( (pMatch->fg.jointype & JT_LEFT)!=0 ){
          ExprSetProperty(pExpr, EP_CanBeNull);
        }
        pSchema = pExpr->pTab->pSchema;
      }
    } /* if( pSrcList ) */

#if !defined(SQLITE_OMIT_TRIGGER) || !defined(SQLITE_OMIT_UPSERT)
    /* If we have not already resolved the name, then maybe 
    ** it is a new.* or old.* trigger argument reference.  Or
    ** maybe it is an excluded.* from an upsert.
................................................................................
        if( iCol<pTab->nCol ){
          cnt++;
#ifndef SQLITE_OMIT_UPSERT
          if( pExpr->iTable==2 ){
            testcase( iCol==(-1) );
            if( IN_RENAME_OBJECT ){
              pExpr->iColumn = iCol;
              pExpr->pTab = pTab;
              eNewExprOp = TK_COLUMN;
            }else{
              pExpr->iTable = pNC->uNC.pUpsert->regData + iCol;
              eNewExprOp = TK_REGISTER;
              ExprSetProperty(pExpr, EP_Alias);
            }
          }else
................................................................................
              testcase( iCol==32 );
              pParse->oldmask |= (iCol>=32 ? 0xffffffff : (((u32)1)<<iCol));
            }else{
              testcase( iCol==31 );
              testcase( iCol==32 );
              pParse->newmask |= (iCol>=32 ? 0xffffffff : (((u32)1)<<iCol));
            }
            pExpr->pTab = pTab;
            pExpr->iColumn = (i16)iCol;
            eNewExprOp = TK_TRIGGER;
#endif /* SQLITE_OMIT_TRIGGER */
          }
        }
      }
    }
................................................................................
  ** Because no reference was made to outer contexts, the pNC->nRef
  ** fields are not changed in any context.
  */
  if( cnt==0 && zTab==0 ){
    assert( pExpr->op==TK_ID );
    if( ExprHasProperty(pExpr,EP_DblQuoted) ){
      pExpr->op = TK_STRING;
      pExpr->pTab = 0;
      return WRC_Prune;
    }
    if( sqlite3ExprIdToTrueFalse(pExpr) ){
      return WRC_Prune;
    }
  }

................................................................................
** Allocate and return a pointer to an expression to load the column iCol
** from datasource iSrc in SrcList pSrc.
*/
SQLITE_PRIVATE Expr *sqlite3CreateColumnExpr(sqlite3 *db, SrcList *pSrc, int iSrc, int iCol){
  Expr *p = sqlite3ExprAlloc(db, TK_COLUMN, 0, 0);
  if( p ){
    struct SrcList_item *pItem = &pSrc->a[iSrc];
    p->pTab = pItem->pTab;
    p->iTable = pItem->iCursor;
    if( p->pTab->iPKey==iCol ){
      p->iColumn = -1;
    }else{
      p->iColumn = (ynVar)iCol;
      testcase( iCol==BMS );
      testcase( iCol==BMS-1 );
      pItem->colUsed |= ((Bitmask)1)<<(iCol>=BMS ? BMS-1 : iCol);
    }
................................................................................
    case TK_ROW: {
      SrcList *pSrcList = pNC->pSrcList;
      struct SrcList_item *pItem;
      assert( pSrcList && pSrcList->nSrc==1 );
      pItem = pSrcList->a;
      assert( HasRowid(pItem->pTab) && pItem->pTab->pSelect==0 );
      pExpr->op = TK_COLUMN;
      pExpr->pTab = pItem->pTab;
      pExpr->iTable = pItem->iCursor;
      pExpr->iColumn = -1;
      pExpr->affinity = SQLITE_AFF_INTEGER;
      break;
    }
#endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT)
          && !defined(SQLITE_OMIT_SUBQUERY) */
................................................................................
          pLeft = pRight->pLeft;
          pRight = pRight->pRight;
        }
        zTable = pLeft->u.zToken;
        zColumn = pRight->u.zToken;
        if( IN_RENAME_OBJECT ){
          sqlite3RenameTokenRemap(pParse, (void*)pExpr, (void*)pRight);
        }
        if( IN_RENAME_OBJECT ){
          sqlite3RenameTokenRemap(pParse, (void*)&pExpr->pTab, (void*)pLeft);
        }
      }
      return lookupName(pParse, zDb, zTable, zColumn, pNC, pExpr);
    }

    /* Resolve function names
    */
................................................................................

      if( 0==IN_RENAME_OBJECT ){
#ifndef SQLITE_OMIT_WINDOWFUNC
        assert( is_agg==0 || (pDef->funcFlags & SQLITE_FUNC_MINMAX)
          || (pDef->xValue==0 && pDef->xInverse==0)
          || (pDef->xValue && pDef->xInverse && pDef->xSFunc && pDef->xFinalize)
        );
        if( pDef && pDef->xValue==0 && pExpr->pWin ){
          sqlite3ErrorMsg(pParse, 
              "%.*s() may not be used as a window function", nId, zId
          );
          pNC->nErr++;
        }else if( 
              (is_agg && (pNC->ncFlags & NC_AllowAgg)==0)
           || (is_agg && (pDef->funcFlags & SQLITE_FUNC_WINDOW) && !pExpr->pWin)
           || (is_agg && pExpr->pWin && (pNC->ncFlags & NC_AllowWin)==0)
        ){
          const char *zType;
          if( (pDef->funcFlags & SQLITE_FUNC_WINDOW) || pExpr->pWin ){
            zType = "window";
          }else{
            zType = "aggregate";
          }
          sqlite3ErrorMsg(pParse, "misuse of %s function %.*s()",zType,nId,zId);
          pNC->nErr++;
          is_agg = 0;
................................................................................
        }else if( wrong_num_args ){
          sqlite3ErrorMsg(pParse,"wrong number of arguments to function %.*s()",
               nId, zId);
          pNC->nErr++;
        }
        if( is_agg ){
#ifndef SQLITE_OMIT_WINDOWFUNC
          pNC->ncFlags &= ~(pExpr->pWin ? NC_AllowWin : NC_AllowAgg);
#else
          pNC->ncFlags &= ~NC_AllowAgg;
#endif
        }
      }
      sqlite3WalkExprList(pWalker, pList);
      if( is_agg ){
#ifndef SQLITE_OMIT_WINDOWFUNC
        if( pExpr->pWin ){
          Select *pSel = pNC->pWinSelect;
          sqlite3WalkExprList(pWalker, pExpr->pWin->pPartition);
          sqlite3WalkExprList(pWalker, pExpr->pWin->pOrderBy);
          sqlite3WalkExpr(pWalker, pExpr->pWin->pFilter);
          sqlite3WindowUpdate(pParse, pSel->pWinDefn, pExpr->pWin, pDef);
          if( 0==pSel->pWin 
           || 0==sqlite3WindowCompare(pParse, pSel->pWin, pExpr->pWin) 
          ){
            pExpr->pWin->pNextWin = pSel->pWin;
            pSel->pWin = pExpr->pWin;
          }
          pNC->ncFlags |= NC_AllowWin;
        }else
#endif /* SQLITE_OMIT_WINDOWFUNC */
        {
          NameContext *pNC2 = pNC;
          pExpr->op = TK_AGG_FUNCTION;
................................................................................
    pItem->u.x.iOrderByCol = 0;
    if( sqlite3ResolveExprNames(pNC, pE) ){
      return 1;
    }
    for(j=0; j<pSelect->pEList->nExpr; j++){
      if( sqlite3ExprCompare(0, pE, pSelect->pEList->a[j].pExpr, -1)==0 ){
#ifndef SQLITE_OMIT_WINDOWFUNC
        if( pE->pWin ){
          /* Since this window function is being changed into a reference
          ** to the same window function the result set, remove the instance
          ** of this window function from the Select.pWin list. */
          Window **pp;
          for(pp=&pSelect->pWin; *pp; pp=&(*pp)->pNextWin){
            if( *pp==pE->pWin ){
              *pp = (*pp)->pNextWin;
            }    
          }
        }
#endif
        pItem->u.x.iOrderByCol = j+1;
      }
................................................................................
  if( op==TK_REGISTER ) op = pExpr->op2;
#ifndef SQLITE_OMIT_CAST
  if( op==TK_CAST ){
    assert( !ExprHasProperty(pExpr, EP_IntValue) );
    return sqlite3AffinityType(pExpr->u.zToken, 0);
  }
#endif
  if( (op==TK_AGG_COLUMN || op==TK_COLUMN) && pExpr->pTab ){
    return sqlite3TableColumnAffinity(pExpr->pTab, pExpr->iColumn);
  }
  if( op==TK_SELECT_COLUMN ){
    assert( pExpr->pLeft->flags&EP_xIsSelect );
    return sqlite3ExprAffinity(
        pExpr->pLeft->x.pSelect->pEList->a[pExpr->iColumn].pExpr
    );
  }
................................................................................
  CollSeq *pColl = 0;
  Expr *p = pExpr;
  while( p ){
    int op = p->op;
    if( p->flags & EP_Generic ) break;
    if( (op==TK_AGG_COLUMN || op==TK_COLUMN
          || op==TK_REGISTER || op==TK_TRIGGER)
     && p->pTab!=0
    ){
      /* op==TK_REGISTER && p->pTab!=0 happens when pExpr was originally
      ** a TK_COLUMN but was previously evaluated and cached in a register */
      int j = p->iColumn;
      if( j>=0 ){
        const char *zColl = p->pTab->aCol[j].zColl;
        pColl = sqlite3FindCollSeq(db, ENC(db), zColl, 0);
      }
      break;
    }
    if( op==TK_CAST || op==TK_UPLUS ){
      p = p->pLeft;
      continue;
................................................................................
/*
** Recursively delete an expression tree.
*/
static SQLITE_NOINLINE void sqlite3ExprDeleteNN(sqlite3 *db, Expr *p){
  assert( p!=0 );
  /* Sanity check: Assert that the IntValue is non-negative if it exists */
  assert( !ExprHasProperty(p, EP_IntValue) || p->u.iValue>=0 );




#ifdef SQLITE_DEBUG
  if( ExprHasProperty(p, EP_Leaf) && !ExprHasProperty(p, EP_TokenOnly) ){
    assert( p->pLeft==0 );
    assert( p->pRight==0 );
    assert( p->x.pSelect==0 );
  }
#endif
................................................................................
    if( p->pRight ){
      sqlite3ExprDeleteNN(db, p->pRight);
    }else if( ExprHasProperty(p, EP_xIsSelect) ){
      sqlite3SelectDelete(db, p->x.pSelect);
    }else{
      sqlite3ExprListDelete(db, p->x.pList);
    }
    if( !ExprHasProperty(p, EP_Reduced) ){

      sqlite3WindowDelete(db, p->pWin);
    }
  }
  if( ExprHasProperty(p, EP_MemToken) ) sqlite3DbFree(db, p->u.zToken);
  if( !ExprHasProperty(p, EP_Static) ){
    sqlite3DbFreeNN(db, p);
  }
}
................................................................................
static int dupedExprStructSize(Expr *p, int flags){
  int nSize;
  assert( flags==EXPRDUP_REDUCE || flags==0 ); /* Only one flag value allowed */
  assert( EXPR_FULLSIZE<=0xfff );
  assert( (0xfff & (EP_Reduced|EP_TokenOnly))==0 );
  if( 0==flags || p->op==TK_SELECT_COLUMN 
#ifndef SQLITE_OMIT_WINDOWFUNC
   || p->pWin 
#endif
  ){
    nSize = EXPR_FULLSIZE;
  }else{
    assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) );
    assert( !ExprHasProperty(p, EP_FromJoin) ); 
    assert( !ExprHasProperty(p, EP_MemToken) );
................................................................................
** This function returns the space in bytes required to store the copy 
** of the Expr structure and a copy of the Expr.u.zToken string (if that
** string is defined.)
*/
static int dupedExprNodeSize(Expr *p, int flags){
  int nByte = dupedExprStructSize(p, flags) & 0xfff;
  if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){
    nByte += sqlite3Strlen30(p->u.zToken)+1;
  }
  return ROUND8(nByte);
}

/*
** Return the number of bytes required to create a duplicate of the 
** expression passed as the first argument. The second argument is a
................................................................................
        pNew->x.pSelect = sqlite3SelectDup(db, p->x.pSelect, dupFlags);
      }else{
        pNew->x.pList = sqlite3ExprListDup(db, p->x.pList, dupFlags);
      }
    }

    /* Fill in pNew->pLeft and pNew->pRight. */
    if( ExprHasProperty(pNew, EP_Reduced|EP_TokenOnly) ){
      zAlloc += dupedExprNodeSize(p, dupFlags);
      if( !ExprHasProperty(pNew, EP_TokenOnly|EP_Leaf) ){
        pNew->pLeft = p->pLeft ?
                      exprDup(db, p->pLeft, EXPRDUP_REDUCE, &zAlloc) : 0;
        pNew->pRight = p->pRight ?
                       exprDup(db, p->pRight, EXPRDUP_REDUCE, &zAlloc) : 0;
      }






      if( pzBuffer ){
        *pzBuffer = zAlloc;
      }
    }else{
#ifndef SQLITE_OMIT_WINDOWFUNC
      if( ExprHasProperty(p, EP_Reduced|EP_TokenOnly) ){
        pNew->pWin = 0;
      }else{
        pNew->pWin = sqlite3WindowDup(db, pNew, p->pWin);
      }
#endif /* SQLITE_OMIT_WINDOWFUNC */
      if( !ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){
        if( pNew->op==TK_SELECT_COLUMN ){
          pNew->pLeft = p->pLeft;
          assert( p->iColumn==0 || p->pRight==0 );
          assert( p->pRight==0  || p->pRight==p->pLeft );
        }else{
          pNew->pLeft = sqlite3ExprDup(db, p->pLeft, 0);
................................................................................
    case TK_INTEGER:
    case TK_STRING:
    case TK_FLOAT:
    case TK_BLOB:
      return 0;
    case TK_COLUMN:
      return ExprHasProperty(p, EP_CanBeNull) ||
             p->pTab==0 ||  /* Reference to column of index on expression */
             (p->iColumn>=0 && p->pTab->aCol[p->iColumn].notNull==0);
    default:
      return 1;
  }
}

/*
** Return TRUE if the given expression is a constant which would be
................................................................................
*/
SQLITE_PRIVATE int sqlite3IsRowid(const char *z){
  if( sqlite3StrICmp(z, "_ROWID_")==0 ) return 1;
  if( sqlite3StrICmp(z, "ROWID")==0 ) return 1;
  if( sqlite3StrICmp(z, "OID")==0 ) return 1;
  return 0;
}









/*
** pX is the RHS of an IN operator.  If pX is a SELECT statement 
** that can be simplified to a direct table access, then return
** a pointer to the SELECT statement.  If pX is not a SELECT statement,
** or if the SELECT statement needs to be manifested into a transient
** table, then return NULL.
................................................................................
        /* This COLUMN expression is really a constant due to WHERE clause
        ** constraints, and that constant is coded by the pExpr->pLeft
        ** expresssion.  However, make sure the constant has the correct
        ** datatype by applying the Affinity of the table column to the
        ** constant.
        */
        int iReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft,target);
        int aff = sqlite3TableColumnAffinity(pExpr->pTab, pExpr->iColumn);
        if( aff!=SQLITE_AFF_BLOB ){
          static const char zAff[] = "B\000C\000D\000E";
          assert( SQLITE_AFF_BLOB=='A' );
          assert( SQLITE_AFF_TEXT=='B' );
          if( iReg!=target ){
            sqlite3VdbeAddOp2(v, OP_SCopy, iReg, target);
            iReg = target;
................................................................................
          return pExpr->iColumn - pParse->iSelfTab;
        }else{
          /* Coding an expression that is part of an index where column names
          ** in the index refer to the table to which the index belongs */
          iTab = pParse->iSelfTab - 1;
        }
      }
      return sqlite3ExprCodeGetColumn(pParse, pExpr->pTab,
                               pExpr->iColumn, iTab, target,
                               pExpr->op2);
    }
    case TK_INTEGER: {
      codeInteger(pParse, pExpr, 0, target);
      return target;
    }
................................................................................
      u32 constMask = 0;     /* Mask of function arguments that are constant */
      int i;                 /* Loop counter */
      sqlite3 *db = pParse->db;  /* The database connection */
      u8 enc = ENC(db);      /* The text encoding used by this database */
      CollSeq *pColl = 0;    /* A collating sequence */

#ifndef SQLITE_OMIT_WINDOWFUNC
      if( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) && pExpr->pWin ){
        return pExpr->pWin->regResult;
      }
#endif

      if( ConstFactorOk(pParse) && sqlite3ExprIsConstantNotJoin(pExpr) ){
        /* SQL functions can be expensive. So try to move constant functions
        ** out of the inner loop, even if that means an extra OP_Copy. */
        return sqlite3ExprCodeAtInit(pParse, pExpr, -1);
................................................................................
      **
      ** Then p1 is interpreted as follows:
      **
      **   p1==0   ->    old.rowid     p1==3   ->    new.rowid
      **   p1==1   ->    old.a         p1==4   ->    new.a
      **   p1==2   ->    old.b         p1==5   ->    new.b       
      */
      Table *pTab = pExpr->pTab;
      int p1 = pExpr->iTable * (pTab->nCol+1) + 1 + pExpr->iColumn;

      assert( pExpr->iTable==0 || pExpr->iTable==1 );
      assert( pExpr->iColumn>=-1 && pExpr->iColumn<pTab->nCol );
      assert( pTab->iPKey<0 || pExpr->iColumn!=pTab->iPKey );
      assert( p1>=0 && p1<(pTab->nCol*2+2) );

      sqlite3VdbeAddOp2(v, OP_Param, p1, target);
      VdbeComment((v, "r[%d]=%s.%s", target,
        (pExpr->iTable ? "new" : "old"),
        (pExpr->iColumn<0 ? "rowid" : pExpr->pTab->aCol[pExpr->iColumn].zName)
      ));

#ifndef SQLITE_OMIT_FLOATING_POINT
      /* If the column has REAL affinity, it may currently be stored as an
      ** integer. Use OP_RealAffinity to make sure it is really real.
      **
      ** EVIDENCE-OF: R-60985-57662 SQLite will convert the value back to
................................................................................
      return 1;
    }
    return 2;
  }
  if( pA->op!=TK_COLUMN && pA->op!=TK_AGG_COLUMN && pA->u.zToken ){
    if( pA->op==TK_FUNCTION ){
      if( sqlite3StrICmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;














    }else if( pA->op==TK_COLLATE ){
      if( sqlite3_stricmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
    }else if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
      return 2;
    }
  }
  if( (pA->flags & EP_Distinct)!=(pB->flags & EP_Distinct) ) return 2;
................................................................................
    if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
    assert( (combinedFlags & EP_Reduced)==0 );
    if( pA->op!=TK_STRING && pA->op!=TK_TRUEFALSE ){
      if( pA->iColumn!=pB->iColumn ) return 2;
      if( pA->iTable!=pB->iTable 
       && (pA->iTable!=iTab || NEVER(pB->iTable>=0)) ) return 2;
    }
#ifndef SQLITE_OMIT_WINDOWFUNC
    /* Justification for the assert():
    ** window functions have p->op==TK_FUNCTION but aggregate functions
    ** have p->op==TK_AGG_FUNCTION.  So any comparison between an aggregate
    ** function and a window function should have failed before reaching
    ** this point.  And, it is not possible to have a window function and
    ** a scalar function with the same name and number of arguments.  So
    ** if we reach this point, either A and B both window functions or
    ** neither are a window functions. */
    assert( (pA->pWin==0)==(pB->pWin==0) );

    if( pA->pWin!=0 ){
      if( sqlite3WindowCompare(pParse,pA->pWin,pB->pWin)!=0 ) return 2;
    }
#endif
  }
  return 0;
}

/*
** Compare two ExprList objects.  Return 0 if they are identical and 
** non-zero if they differ in any way.
................................................................................
  }
  return 0;
}

/*
** This is the Expr node callback for sqlite3ExprImpliesNotNullRow().
** If the expression node requires that the table at pWalker->iCur
** have a non-NULL column, then set pWalker->eCode to 1 and abort.
*/
static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){
  /* This routine is only called for WHERE clause expressions and so it
  ** cannot have any TK_AGG_COLUMN entries because those are only found
  ** in HAVING clauses.  We can get a TK_AGG_FUNCTION in a WHERE clause,
  ** but that is an illegal construct and the query will be rejected at
  ** a later stage of processing, so the TK_AGG_FUNCTION case does not
  ** need to be considered here. */
  assert( pExpr->op!=TK_AGG_COLUMN );
  testcase( pExpr->op==TK_AGG_FUNCTION );

  if( ExprHasProperty(pExpr, EP_FromJoin) ) return WRC_Prune;
  switch( pExpr->op ){
    case TK_ISNOT:
    case TK_NOT:
    case TK_ISNULL:
    case TK_IS:
    case TK_OR:
................................................................................
    case TK_GE:
      testcase( pExpr->op==TK_EQ );
      testcase( pExpr->op==TK_NE );
      testcase( pExpr->op==TK_LT );
      testcase( pExpr->op==TK_LE );
      testcase( pExpr->op==TK_GT );
      testcase( pExpr->op==TK_GE );
      if( (pExpr->pLeft->op==TK_COLUMN && IsVirtual(pExpr->pLeft->pTab))
       || (pExpr->pRight->op==TK_COLUMN && IsVirtual(pExpr->pRight->pTab))
      ){
       return WRC_Prune;
      }
    default:
      return WRC_Continue;
  }
}
................................................................................
                break;
              }
            }
            if( (k>=pAggInfo->nColumn)
             && (k = addAggInfoColumn(pParse->db, pAggInfo))>=0 
            ){
              pCol = &pAggInfo->aCol[k];
              pCol->pTab = pExpr->pTab;
              pCol->iTable = pExpr->iTable;
              pCol->iColumn = pExpr->iColumn;
              pCol->iMem = ++pParse->nMem;
              pCol->iSorterColumn = -1;
              pCol->pExpr = pExpr;
              if( pAggInfo->pGroupBy ){
                int j, n;
................................................................................
  ** table.
  */
  v = sqlite3GetVdbe(pParse);
  if( v==0 ){
    goto exit_rename_table;
  }

  /* If this is a virtual table, invoke the xRename() function if
  ** one is defined. The xRename() callback will modify the names
  ** of any resources used by the v-table implementation (including other
  ** SQLite tables) that are identified by the name of the virtual table.
  */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  if( pVTab ){
    int i = ++pParse->nMem;
    sqlite3VdbeLoadString(v, i, zName);
    sqlite3VdbeAddOp4(v, OP_VRename, i, 0, 0,(const char*)pVTab, P4_VTAB);
    sqlite3MayAbort(pParse);
  }
#endif

  /* figure out how many UTF-8 characters are in zName */
  zTabName = pTab->zName;
  nTabName = sqlite3Utf8CharLen(zTabName, -1);

  /* Rewrite all CREATE TABLE, INDEX, TRIGGER or VIEW statements in
  ** the schema to use the new table name.  */
  sqlite3NestedParse(pParse, 
................................................................................
            "tbl_name = "
              "CASE WHEN tbl_name=%Q COLLATE nocase AND "
              "          sqlite_rename_test(%Q, sql, type, name, 1) "
              "THEN %Q ELSE tbl_name END "
            "WHERE type IN ('view', 'trigger')"
        , zDb, zTabName, zName, zTabName, zDb, zName);
  }















  renameReloadSchema(pParse, iDb);
  renameTestSchema(pParse, zDb, iDb==1);

exit_rename_table:
  sqlite3SrcListDelete(db, pSrc);
  sqlite3DbFree(db, zName);
................................................................................
  if( pExpr->op==TK_TRIGGER 
   && pExpr->iColumn==p->iCol 
   && pWalker->pParse->pTriggerTab==p->pTab
  ){
    renameTokenFind(pWalker->pParse, p, (void*)pExpr);
  }else if( pExpr->op==TK_COLUMN 
   && pExpr->iColumn==p->iCol 
   && p->pTab==pExpr->pTab
  ){
    renameTokenFind(pWalker->pParse, p, (void*)pExpr);
  }
  return WRC_Continue;
}

/*
................................................................................
  memset(&sNC, 0, sizeof(sNC));
  sNC.pParse = pParse;
  assert( pNew->pTabSchema );
  pParse->pTriggerTab = sqlite3FindTable(db, pNew->table, 
      db->aDb[sqlite3SchemaToIndex(db, pNew->pTabSchema)].zDbSName
  );
  pParse->eTriggerOp = pNew->op;






  /* Resolve symbols in WHEN clause */
  if( pNew->pWhen ){
    rc = sqlite3ResolveExprNames(&sNC, pNew->pWhen);
  }

  for(pStep=pNew->step_list; rc==SQLITE_OK && pStep; pStep=pStep->pNext){
    if( pStep->pSelect ){
      sqlite3SelectPrep(pParse, pStep->pSelect, &sNC);
      if( pParse->nErr ) rc = pParse->rc;
................................................................................
}

/*
** Walker expression callback used by "RENAME TABLE". 
*/
static int renameTableExprCb(Walker *pWalker, Expr *pExpr){
  RenameCtx *p = pWalker->u.pRename;
  if( pExpr->op==TK_COLUMN && p->pTab==pExpr->pTab ){
    renameTokenFind(pWalker->pParse, p, (void*)&pExpr->pTab);
  }
  return WRC_Continue;
}

/*
** Walker select callback used by "RENAME TABLE". 
*/
................................................................................
    sWalker.xExprCallback = renameTableExprCb;
    sWalker.xSelectCallback = renameTableSelectCb;
    sWalker.u.pRename = &sCtx;

    rc = renameParseSql(&sParse, zDb, 1, db, zInput, bTemp);

    if( rc==SQLITE_OK ){

      if( sParse.pNewTable ){
        Table *pTab = sParse.pNewTable;

        if( pTab->pSelect ){

          NameContext sNC;
          memset(&sNC, 0, sizeof(sNC));
          sNC.pParse = &sParse;

          sqlite3SelectPrep(&sParse, pTab->pSelect, &sNC);
          if( sParse.nErr ) rc = sParse.rc;
          sqlite3WalkSelect(&sWalker, pTab->pSelect);

        }else{
          /* Modify any FK definitions to point to the new table. */
#ifndef SQLITE_OMIT_FOREIGN_KEY
          if( db->flags & SQLITE_ForeignKeys ){
            FKey *pFKey;
            for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
              if( sqlite3_stricmp(pFKey->zTo, zOld)==0 ){
                renameTokenFind(&sParse, &sCtx, (void*)pFKey->zTo);
              }
            }
          }
................................................................................
#endif

          /* If this is the table being altered, fix any table refs in CHECK
          ** expressions. Also update the name that appears right after the
          ** "CREATE [VIRTUAL] TABLE" bit. */
          if( sqlite3_stricmp(zOld, pTab->zName)==0 ){
            sCtx.pTab = pTab;

            sqlite3WalkExprList(&sWalker, pTab->pCheck);

            renameTokenFind(&sParse, &sCtx, pTab->zName);
          }
        }
      }

      else if( sParse.pNewIndex ){
        renameTokenFind(&sParse, &sCtx, sParse.pNewIndex->zName);

        sqlite3WalkExpr(&sWalker, sParse.pNewIndex->pPartIdxWhere);

      }

#ifndef SQLITE_OMIT_TRIGGER
      else{
        Trigger *pTrigger = sParse.pNewTrigger;
        TriggerStep *pStep;
        if( 0==sqlite3_stricmp(sParse.pNewTrigger->table, zOld) 
            && sCtx.pTab->pSchema==pTrigger->pTabSchema
          ){
          renameTokenFind(&sParse, &sCtx, sParse.pNewTrigger->table);
        }


        rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);
        if( rc==SQLITE_OK ){
          renameWalkTrigger(&sWalker, pTrigger);
          for(pStep=pTrigger->step_list; pStep; pStep=pStep->pNext){
            if( pStep->zTarget && 0==sqlite3_stricmp(pStep->zTarget, zOld) ){
              renameTokenFind(&sParse, &sCtx, pStep->zTarget);

            }
          }
        }
      }
#endif
    }

................................................................................
  int NotUsed,
  sqlite3_value **argv
){
  sqlite3 *db = sqlite3_context_db_handle(context);
  char const *zDb = (const char*)sqlite3_value_text(argv[0]);
  char const *zInput = (const char*)sqlite3_value_text(argv[1]);
  int bTemp = sqlite3_value_int(argv[4]);


#ifndef SQLITE_OMIT_AUTHORIZATION
  sqlite3_xauth xAuth = db->xAuth;
  db->xAuth = 0;
#endif

  UNUSED_PARAMETER(NotUsed);
  if( zDb && zInput ){
    int rc;
    Parse sParse;
    rc = renameParseSql(&sParse, zDb, 1, db, zInput, bTemp);
    if( rc==SQLITE_OK ){
      if( sParse.pNewTable && sParse.pNewTable->pSelect ){
        NameContext sNC;
        memset(&sNC, 0, sizeof(sNC));
        sNC.pParse = &sParse;
        sqlite3SelectPrep(&sParse, sParse.pNewTable->pSelect, &sNC);
        if( sParse.nErr ) rc = sParse.rc;
      }

      else if( sParse.pNewTrigger ){

        rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);

        if( rc==SQLITE_OK ){
          int i1 = sqlite3SchemaToIndex(db, sParse.pNewTrigger->pTabSchema);
          int i2 = sqlite3FindDbName(db, zDb);
          if( i1==i2 ) sqlite3_result_int(context, 1);
        }
      }
    }
................................................................................
  Table *pTab = 0;      /* The table being read */
  const char *zCol;     /* Name of the column of the table */
  int iSrc;             /* Index in pTabList->a[] of table being read */
  int iDb;              /* The index of the database the expression refers to */
  int iCol;             /* Index of column in table */

  assert( pExpr->op==TK_COLUMN || pExpr->op==TK_TRIGGER );

  if( db->xAuth==0 ) return;
  iDb = sqlite3SchemaToIndex(pParse->db, pSchema);
  if( iDb<0 ){
    /* An attempt to read a column out of a subquery or other
    ** temporary table. */
    return;
  }
................................................................................
){
  sqlite3 *db = pParse->db;
  int rc;

  /* Don't do any authorization checks if the database is initialising
  ** or if the parser is being invoked from within sqlite3_declare_vtab.
  */

  if( db->init.busy || IN_SPECIAL_PARSE ){
    return SQLITE_OK;
  }

  if( db->xAuth==0 ){
    return SQLITE_OK;
  }
................................................................................
    return 0;
  }

  p = sqlite3FindTable(db, zName, zDbase);
  if( p==0 ){
    const char *zMsg = flags & LOCATE_VIEW ? "no such view" : "no such table";
#ifndef SQLITE_OMIT_VIRTUALTABLE
    if( sqlite3FindDbName(db, zDbase)<1 ){
      /* If zName is the not the name of a table in the schema created using
      ** CREATE, then check to see if it is the name of an virtual table that
      ** can be an eponymous virtual table. */
      Module *pMod = (Module*)sqlite3HashFind(&db->aModule, zName);
      if( pMod==0 && sqlite3_strnicmp(zName, "pragma_", 7)==0 ){
        pMod = sqlite3PragmaVtabRegister(db, zName);
      }
      if( pMod && sqlite3VtabEponymousTableInit(pParse, pMod) ){
        return pMod->pEpoTab;
      }
    }
#endif
    if( (flags & LOCATE_NOERR)==0 ){
      if( zDbase ){
        sqlite3ErrorMsg(pParse, "%s: %s.%s", zMsg, zDbase, zName);
      }else{
        sqlite3ErrorMsg(pParse, "%s: %s", zMsg, zName);
................................................................................
  }

  /* Delete any foreign keys attached to this table. */
  sqlite3FkDelete(db, pTable);

  /* Delete the Table structure itself.
  */






  sqlite3DeleteColumnNames(db, pTable);
  sqlite3DbFree(db, pTable->zName);
  sqlite3DbFree(db, pTable->zColAff);
  sqlite3SelectDelete(db, pTable->pSelect);
  sqlite3ExprListDelete(db, pTable->pCheck);
#ifndef SQLITE_OMIT_VIRTUALTABLE
  sqlite3VtabClear(db, pTable);
................................................................................
    assert( db->init.iDb==0 || db->init.busy || IN_RENAME_OBJECT
             || (db->mDbFlags & DBFLAG_Vacuum)!=0);
    iDb = db->init.iDb;
    *pUnqual = pName1;
  }
  return iDb;
}















/*
** This routine is used to check if the UTF-8 string zName is a legal
** unqualified name for a new schema object (table, index, view or
** trigger). All names are legal except those that begin with the string
** "sqlite_" (in upper, lower or mixed case). This portion of the namespace
** is reserved for internal use.
*/
SQLITE_PRIVATE int sqlite3CheckObjectName(Parse *pParse, const char *zName){
  if( !pParse->db->init.busy && pParse->nested==0 
          && (pParse->db->flags & SQLITE_WriteSchema)==0
          && 0==sqlite3StrNICmp(zName, "sqlite_", 7) ){
    sqlite3ErrorMsg(pParse, "object name reserved for internal use: %s", zName);
    return SQLITE_ERROR;
  }
  return SQLITE_OK;
}

................................................................................
    for(i=0; i<pTab->nCol; i++){
      if( (pTab->aCol[i].colFlags & COLFLAG_PRIMKEY)!=0 ){
        pTab->aCol[i].notNull = OE_Abort;
      }
    }
  }

  /* The remaining transformations only apply to b-tree tables, not to
  ** virtual tables */
  if( IN_DECLARE_VTAB ) return;

  /* Convert the P3 operand of the OP_CreateBtree opcode from BTREE_INTKEY
  ** into BTREE_BLOBKEY.
  */
  if( pParse->addrCrTab ){
    assert( v );
    sqlite3VdbeChangeP3(v, pParse->addrCrTab, BTREE_BLOBKEY);
  }
................................................................................
    assert( pPk->nColumn==j );
    assert( pTab->nCol==j );
  }else{
    pPk->nColumn = pTab->nCol;
  }
  recomputeColumnsNotIndexed(pPk);
}



























/*
** This routine is called to report the final ")" that terminates
** a CREATE TABLE statement.
**
** The table structure that other action routines have been building
** is added to the internal hash tables, assuming no errors have
................................................................................

  if( pEnd==0 && pSelect==0 ){
    return;
  }
  assert( !db->mallocFailed );
  p = pParse->pNewTable;
  if( p==0 ) return;





  /* If the db->init.busy is 1 it means we are reading the SQL off the
  ** "sqlite_master" or "sqlite_temp_master" table on the disk.
  ** So do not write to the disk again.  Extract the root page number
  ** for the table from the db->init.newTnum field.  (The page number
  ** should have been put there by the sqliteOpenCb routine.)
  **
................................................................................
** Also write code to modify the sqlite_master table and internal schema
** if a root-page of another table is moved by the btree-layer whilst
** erasing iTable (this can happen with an auto-vacuum database).
*/ 
static void destroyRootPage(Parse *pParse, int iTable, int iDb){
  Vdbe *v = sqlite3GetVdbe(pParse);
  int r1 = sqlite3GetTempReg(pParse);
  assert( iTable>1 );
  sqlite3VdbeAddOp3(v, OP_Destroy, iTable, r1, iDb);
  sqlite3MayAbort(pParse);
#ifndef SQLITE_OMIT_AUTOVACUUM
  /* OP_Destroy stores an in integer r1. If this integer
  ** is non-zero, then it is the root page number of a table moved to
  ** location iTable. The following code modifies the sqlite_master table to
  ** reflect this.
................................................................................
  for(p=sqlite3BuiltinFunctions.a[h]; p; p=p->u.pHash){
    if( sqlite3StrICmp(p->zName, zFunc)==0 ){
      return p;
    }
  }
  return 0;
}
















/*
** Insert a new FuncDef into a FuncDefHash hash table.
*/
SQLITE_PRIVATE void sqlite3InsertBuiltinFuncs(
  FuncDef *aDef,      /* List of global functions to be inserted */
  int nDef            /* Length of the apDef[] list */
){
  int i;
  for(i=0; i<nDef; i++){
    FuncDef *pOther;
    const char *zName = aDef[i].zName;
    int nName = sqlite3Strlen30(zName);
    int h = (zName[0] + nName) % SQLITE_FUNC_HASH_SZ;
    assert( zName[0]>='a' && zName[0]<='z' );
    pOther = functionSearch(h, zName);
    if( pOther ){
      assert( pOther!=&aDef[i] && pOther->pNext!=&aDef[i] );
      aDef[i].pNext = pOther->pNext;
      pOther->pNext = &aDef[i];
    }else{
................................................................................
  ** install a new function.  Whatever FuncDef structure is returned it will
  ** have fields overwritten with new information appropriate for the
  ** new function.  But the FuncDefs for built-in functions are read-only.
  ** So we must not search for built-ins when creating a new function.
  */ 
  if( !createFlag && (pBest==0 || (db->mDbFlags & DBFLAG_PreferBuiltin)!=0) ){
    bestScore = 0;
    h = (sqlite3UpperToLower[(u8)zName[0]] + nName) % SQLITE_FUNC_HASH_SZ;
    p = functionSearch(h, zName);
    while( p ){
      int score = matchQuality(p, nArg, enc);
      if( score>bestScore ){
        pBest = p;
        bestScore = score;
      }
................................................................................
    pTab->nTabRef++;
  }
  if( sqlite3IndexedByLookup(pParse, pItem) ){
    pTab = 0;
  }
  return pTab;
}
































/*
** Check to make sure the given table is writable.  If it is not
** writable, generate an error message and return 1.  If it is
** writable return 0;
*/
SQLITE_PRIVATE int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
  /* A table is not writable under the following circumstances:
  **
  **   1) It is a virtual table and no implementation of the xUpdate method
  **      has been provided, or
  **   2) It is a system table (i.e. sqlite_master), this call is not
  **      part of a nested parse and writable_schema pragma has not 
  **      been specified.
  **
  ** In either case leave an error message in pParse and return non-zero.
  */
  if( ( IsVirtual(pTab) 
     && sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0 )
   || ( (pTab->tabFlags & TF_Readonly)!=0
     && (pParse->db->flags & SQLITE_WriteSchema)==0
     && pParse->nested==0 )
  ){
    sqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName);
    return 1;
  }

#ifndef SQLITE_OMIT_VIEW
  if( !viewOk && pTab->pSelect ){
    sqlite3ErrorMsg(pParse,"cannot modify %s because it is a view",pTab->zName);
    return 1;
  }
#endif
  return 0;
................................................................................
  sqlite3 *db,      /* The database connection */
  Table *pTab,      /* The table whose column is desired */
  int iCursor,      /* The open cursor on the table */
  i16 iCol          /* The column that is wanted */
){
  Expr *pExpr = sqlite3Expr(db, TK_COLUMN, 0);
  if( pExpr ){
    pExpr->pTab = pTab;
    pExpr->iTable = iCursor;
    pExpr->iColumn = iCol;
  }
  return pExpr;
}

/*
................................................................................
      zColAff[i] = pTab->aCol[i].affinity;
    }
    do{
      zColAff[i--] = 0;
    }while( i>=0 && zColAff[i]==SQLITE_AFF_BLOB );
    pTab->zColAff = zColAff;
  }

  i = sqlite3Strlen30(zColAff);
  if( i ){
    if( iReg ){
      sqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i);
    }else{
      sqlite3VdbeChangeP4(v, -1, zColAff, i);
    }
  }
................................................................................
 #undef pTrigger
#endif
#ifdef tmask
 #undef tmask
#endif

/*
** Meanings of bits in of pWalker->eCode for checkConstraintUnchanged()

*/
#define CKCNSTRNT_COLUMN   0x01    /* CHECK constraint uses a changing column */
#define CKCNSTRNT_ROWID    0x02    /* CHECK constraint references the ROWID */

/* This is the Walker callback from checkConstraintUnchanged().  Set
** bit 0x01 of pWalker->eCode if
** pWalker->eCode to 0 if this expression node references any of the
** columns that are being modifed by an UPDATE statement.
*/
static int checkConstraintExprNode(Walker *pWalker, Expr *pExpr){
  if( pExpr->op==TK_COLUMN ){
    assert( pExpr->iColumn>=0 || pExpr->iColumn==-1 );
    if( pExpr->iColumn>=0 ){
      if( pWalker->u.aiCol[pExpr->iColumn]>=0 ){
................................................................................
}

/*
** pExpr is a CHECK constraint on a row that is being UPDATE-ed.  The
** only columns that are modified by the UPDATE are those for which
** aiChng[i]>=0, and also the ROWID is modified if chngRowid is true.
**
** Return true if CHECK constraint pExpr does not use any of the
** changing columns (or the rowid if it is changing).  In other words,
** return true if this CHECK constraint can be skipped when validating
** the new row in the UPDATE statement.





*/
static int checkConstraintUnchanged(Expr *pExpr, int *aiChng, int chngRowid){





  Walker w;
  memset(&w, 0, sizeof(w));
  w.eCode = 0;
  w.xExprCallback = checkConstraintExprNode;
  w.u.aiCol = aiChng;
  sqlite3WalkExpr(&w, pExpr);
  if( !chngRowid ){
................................................................................
    testcase( (w.eCode & CKCNSTRNT_ROWID)!=0 );
    w.eCode &= ~CKCNSTRNT_ROWID;
  }
  testcase( w.eCode==0 );
  testcase( w.eCode==CKCNSTRNT_COLUMN );
  testcase( w.eCode==CKCNSTRNT_ROWID );
  testcase( w.eCode==(CKCNSTRNT_ROWID|CKCNSTRNT_COLUMN) );
  return !w.eCode;
}

/*
** Generate code to do constraint checks prior to an INSERT or an UPDATE
** on table pTab.
**
** The regNewData parameter is the first register in a range that contains
................................................................................
  if( pTab->pCheck && (db->flags & SQLITE_IgnoreChecks)==0 ){
    ExprList *pCheck = pTab->pCheck;
    pParse->iSelfTab = -(regNewData+1);
    onError = overrideError!=OE_Default ? overrideError : OE_Abort;
    for(i=0; i<pCheck->nExpr; i++){
      int allOk;
      Expr *pExpr = pCheck->a[i].pExpr;
      if( aiChng && checkConstraintUnchanged(pExpr, aiChng, pkChng) ) continue;






      allOk = sqlite3VdbeMakeLabel(v);
      sqlite3VdbeVerifyAbortable(v, onError);
      sqlite3ExprIfTrue(pParse, pExpr, allOk, SQLITE_JUMPIFNULL);
      if( onError==OE_Ignore ){
        sqlite3VdbeGoto(v, ignoreDest);
      }else{
        char *zName = pCheck->a[i].zName;
................................................................................
  void (*str_append)(sqlite3_str*, const char *zIn, int N);
  void (*str_appendall)(sqlite3_str*, const char *zIn);
  void (*str_appendchar)(sqlite3_str*, int N, char C);
  void (*str_reset)(sqlite3_str*);
  int (*str_errcode)(sqlite3_str*);
  int (*str_length)(sqlite3_str*);
  char *(*str_value)(sqlite3_str*);

  int (*create_window_function)(sqlite3*,const char*,int,int,void*,
                            void (*xStep)(sqlite3_context*,int,sqlite3_value**),
                            void (*xFinal)(sqlite3_context*),
                            void (*xValue)(sqlite3_context*),
                            void (*xInv)(sqlite3_context*,int,sqlite3_value**),
                            void(*xDestroy)(void*));


};

/*
** This is the function signature used for all extension entry points.  It
** is also defined in the file "loadext.c".
*/
typedef int (*sqlite3_loadext_entry)(
................................................................................
#define sqlite3_str_appendchar         sqlite3_api->str_appendchar
#define sqlite3_str_reset              sqlite3_api->str_reset
#define sqlite3_str_errcode            sqlite3_api->str_errcode
#define sqlite3_str_length             sqlite3_api->str_length
#define sqlite3_str_value              sqlite3_api->str_value
/* Version 3.25.0 and later */
#define sqlite3_create_window_function sqlite3_api->create_window_function


#endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */

#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
  /* This case when the file really is being compiled as a loadable 
  ** extension */
# define SQLITE_EXTENSION_INIT1     const sqlite3_api_routines *sqlite3_api=0;
# define SQLITE_EXTENSION_INIT2(v)  sqlite3_api=v;
................................................................................
  sqlite3_str_appendall,
  sqlite3_str_appendchar,
  sqlite3_str_reset,
  sqlite3_str_errcode,
  sqlite3_str_length,
  sqlite3_str_value,
  /* Version 3.25.0 and later */
  sqlite3_create_window_function






};

/*
** Attempt to load an SQLite extension library contained in the file
** zFile.  The entry point is zProc.  zProc may be 0 in which case a
** default entry point name (sqlite3_extension_init) is used.  Use
** of the default name is recommended.
................................................................................
#define PragTyp_TEMP_STORE_DIRECTORY          36
#define PragTyp_THREADS                       37
#define PragTyp_WAL_AUTOCHECKPOINT            38
#define PragTyp_WAL_CHECKPOINT                39
#define PragTyp_ACTIVATE_EXTENSIONS           40
#define PragTyp_HEXKEY                        41
#define PragTyp_KEY                           42
#define PragTyp_REKEY                         43
#define PragTyp_LOCK_STATUS                   44
#define PragTyp_PARSER_TRACE                  45
#define PragTyp_STATS                         46

/* Property flags associated with various pragma. */
#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
#define PragFlg_NoColumns  0x02 /* OP_ResultRow called with zero columns */
#define PragFlg_NoColumns1 0x04 /* zero columns if RHS argument is present */
#define PragFlg_ReadOnly   0x08 /* Read-only HEADER_VALUE */
#define PragFlg_Result0    0x10 /* Acts as query when no argument */
................................................................................
#define PragFlg_SchemaReq  0x80 /* Schema required - "main" is default */

/* Names of columns for pragmas that return multi-column result
** or that return single-column results where the name of the
** result column is different from the name of the pragma
*/
static const char *const pragCName[] = {
  /*   0 */ "cache_size",  /* Used by: default_cache_size */
  /*   1 */ "cid",         /* Used by: table_info */
  /*   2 */ "name",       
  /*   3 */ "type",       
  /*   4 */ "notnull",    
  /*   5 */ "dflt_value", 
  /*   6 */ "pk",         
  /*   7 */ "tbl",         /* Used by: stats */
  /*   8 */ "idx",        
  /*   9 */ "wdth",       
  /*  10 */ "hght",       
  /*  11 */ "flgs",       
  /*  12 */ "seqno",       /* Used by: index_info */
  /*  13 */ "cid",        
  /*  14 */ "name",       

  /*  15 */ "seqno",       /* Used by: index_xinfo */
  /*  16 */ "cid",        
  /*  17 */ "name",       
  /*  18 */ "desc",       
  /*  19 */ "coll",       
  /*  20 */ "key",        
  /*  21 */ "seq",         /* Used by: index_list */
  /*  22 */ "name",       
  /*  23 */ "unique",     
  /*  24 */ "origin",     
  /*  25 */ "partial",    
  /*  26 */ "seq",         /* Used by: database_list */
  /*  27 */ "name",       
  /*  28 */ "file",       
  /*  29 */ "name",        /* Used by: function_list */
  /*  30 */ "builtin",    
  /*  31 */ "name",        /* Used by: module_list pragma_list */
  /*  32 */ "seq",         /* Used by: collation_list */
  /*  33 */ "name",       
  /*  34 */ "id",          /* Used by: foreign_key_list */

  /*  35 */ "seq",        
  /*  36 */ "table",      
  /*  37 */ "from",       
  /*  38 */ "to",         

  /*  39 */ "on_update",  
  /*  40 */ "on_delete",  
  /*  41 */ "match",      
  /*  42 */ "table",       /* Used by: foreign_key_check */
  /*  43 */ "rowid",      


  /*  44 */ "parent",     
  /*  45 */ "fkid",       
  /*  46 */ "busy",        /* Used by: wal_checkpoint */
  /*  47 */ "log",        
  /*  48 */ "checkpointed",
  /*  49 */ "timeout",     /* Used by: busy_timeout */
  /*  50 */ "database",    /* Used by: lock_status */
  /*  51 */ "status",     
};

/* Definitions of all built-in pragmas */
typedef struct PragmaName {
  const char *const zName; /* Name of pragma */
  u8 ePragTyp;             /* PragTyp_XXX value */
  u8 mPragFlg;             /* Zero or more PragFlg_XXX values */
  u8 iPragCName;           /* Start of column names in pragCName[] */
  u8 nPragCName;           /* Num of col names. 0 means use pragma name */
  u32 iArg;                /* Extra argument */
} PragmaName;
static const PragmaName aPragmaName[] = {
#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
 {/* zName:     */ "activate_extensions",
  /* ePragTyp:  */ PragTyp_ACTIVATE_EXTENSIONS,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_AutoIndex },
#endif
#endif
 {/* zName:     */ "busy_timeout",
  /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 49, 1,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "cache_size",
  /* ePragTyp:  */ PragTyp_CACHE_SIZE,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_CkptFullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "collation_list",
  /* ePragTyp:  */ PragTyp_COLLATION_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 32, 2,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
 {/* zName:     */ "compile_options",
  /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ BTREE_DATA_VERSION },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "database_list",
  /* ePragTyp:  */ PragTyp_DATABASE_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0,
  /* ColNames:  */ 26, 3,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
 {/* zName:     */ "default_cache_size",
  /* ePragTyp:  */ PragTyp_DEFAULT_CACHE_SIZE,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 1,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "defer_foreign_keys",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "foreign_key_check",
  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0,
  /* ColNames:  */ 42, 4,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY)
 {/* zName:     */ "foreign_key_list",
  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 34, 8,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "foreign_keys",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
................................................................................
  /* iArg:      */ SQLITE_FullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "function_list",
  /* ePragTyp:  */ PragTyp_FUNCTION_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 29, 2,
  /* iArg:      */ 0 },
#endif
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "hexkey",
  /* ePragTyp:  */ PragTyp_HEXKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "hexrekey",
  /* ePragTyp:  */ PragTyp_HEXKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_CHECK)
 {/* zName:     */ "ignore_check_constraints",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "index_info",
  /* ePragTyp:  */ PragTyp_INDEX_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 12, 3,
  /* iArg:      */ 0 },
 {/* zName:     */ "index_list",
  /* ePragTyp:  */ PragTyp_INDEX_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 21, 5,
  /* iArg:      */ 0 },
 {/* zName:     */ "index_xinfo",
  /* ePragTyp:  */ PragTyp_INDEX_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 15, 6,
  /* iArg:      */ 1 },
#endif
................................................................................
 {/* zName:     */ "key",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)





 {/* zName:     */ "legacy_file_format",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_LegacyFileFmt },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
 {/* zName:     */ "lock_status",
  /* ePragTyp:  */ PragTyp_LOCK_STATUS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 50, 2,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "locking_mode",
  /* ePragTyp:  */ PragTyp_LOCKING_MODE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
................................................................................
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
#if !defined(SQLITE_OMIT_VIRTUALTABLE)
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "module_list",
  /* ePragTyp:  */ PragTyp_MODULE_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 31, 1,
  /* iArg:      */ 0 },
#endif
#endif
#endif
 {/* zName:     */ "optimize",
  /* ePragTyp:  */ PragTyp_OPTIMIZE,
  /* ePragFlg:  */ PragFlg_Result1|PragFlg_NeedSchema,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "pragma_list",
  /* ePragTyp:  */ PragTyp_PRAGMA_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 31, 1,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "query_only",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_RecTriggers },
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "rekey",
  /* ePragTyp:  */ PragTyp_REKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "reverse_unordered_selects",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ReverseOrder },
................................................................................
  /* iArg:      */ SQLITE_SqlTrace },
#endif
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) && defined(SQLITE_DEBUG)
 {/* zName:     */ "stats",
  /* ePragTyp:  */ PragTyp_STATS,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 7, 5,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "synchronous",
  /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "table_info",
  /* ePragTyp:  */ PragTyp_TABLE_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 1, 6,
  /* iArg:      */ 0 },





#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "temp_store",
  /* ePragTyp:  */ PragTyp_TEMP_STORE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "temp_store_directory",
  /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
  /* ePragFlg:  */ PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },












#endif
 {/* zName:     */ "threads",
  /* ePragTyp:  */ PragTyp_THREADS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
................................................................................
  /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "wal_checkpoint",
  /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 46, 3,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "writable_schema",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_WriteSchema },
#endif
};
/* Number of pragmas: 60 on by default, 77 total. */

/************** End of pragma.h **********************************************/
/************** Continuing where we left off in pragma.c *********************/

/*
** Interpret the given string as a safety level.  Return 0 for OFF,
** 1 for ON or NORMAL, 2 for FULL, and 3 for EXTRA.  Return 1 for an empty or 
................................................................................

#ifndef SQLITE_OMIT_FLAG_PRAGMAS
  case PragTyp_FLAG: {
    if( zRight==0 ){
      setPragmaResultColumnNames(v, pPragma);
      returnSingleInt(v, (db->flags & pPragma->iArg)!=0 );
    }else{
      int mask = pPragma->iArg;    /* Mask of bits to set or clear. */
      if( db->autoCommit==0 ){
        /* Foreign key support may not be enabled or disabled while not
        ** in auto-commit mode.  */
        mask &= ~(SQLITE_ForeignKeys);
      }
#if SQLITE_USER_AUTHENTICATION
      if( db->auth.authLevel==UAUTH_User ){
................................................................................
    Table *pTab;
    pTab = sqlite3LocateTable(pParse, LOCATE_NOERR, zRight, zDb);
    if( pTab ){
      int i, k;
      int nHidden = 0;
      Column *pCol;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);
      pParse->nMem = 6;
      sqlite3CodeVerifySchema(pParse, iDb);
      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
        if( IsHiddenColumn(pCol) ){

          nHidden++;
          continue;
        }
        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
          k = 0;
        }else if( pPk==0 ){
          k = 1;
        }else{
          for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
        }
        assert( pCol->pDflt==0 || pCol->pDflt->op==TK_SPAN );
        sqlite3VdbeMultiLoad(v, 1, "issisi",
               i-nHidden,
               pCol->zName,
               sqlite3ColumnType(pCol,""),
               pCol->notNull ? 1 : 0,
               pCol->pDflt ? pCol->pDflt->u.zToken : 0,
               k);

      }
    }
  }
  break;

#ifdef SQLITE_DEBUG
  case PragTyp_STATS: {
................................................................................
      sqlite3VdbeMultiLoad(v, 1, "ss", db->aDb[i].zDbSName, zState);
    }
    break;
  }
#endif

#ifdef SQLITE_HAS_CODEC









  case PragTyp_KEY: {



    if( zRight ) sqlite3_key_v2(db, zDb, zRight, sqlite3Strlen30(zRight));
    break;


  }
  case PragTyp_REKEY: {
    if( zRight ) sqlite3_rekey_v2(db, zDb, zRight, sqlite3Strlen30(zRight));

    break;
  }
  case PragTyp_HEXKEY: {
    if( zRight ){
      u8 iByte;
      int i;
      char zKey[40];
      for(i=0, iByte=0; i<sizeof(zKey)*2 && sqlite3Isxdigit(zRight[i]); i++){
        iByte = (iByte<<4) + sqlite3HexToInt(zRight[i]);
        if( (i&1)!=0 ) zKey[i/2] = iByte;
      }
      if( (zLeft[3] & 0xf)==0xb ){
        sqlite3_key_v2(db, zDb, zKey, i/2);
      }else{
        sqlite3_rekey_v2(db, zDb, zKey, i/2);
      }
    }
    break;
  }
................................................................................
  0,                           /* xSync - sync transaction */
  0,                           /* xCommit - commit transaction */
  0,                           /* xRollback - rollback transaction */
  0,                           /* xFindFunction - function overloading */
  0,                           /* xRename - rename the table */
  0,                           /* xSavepoint */
  0,                           /* xRelease */
  0                            /* xRollbackTo */

};

/*
** Check to see if zTabName is really the name of a pragma.  If it is,
** then register an eponymous virtual table for that pragma and return
** a pointer to the Module object for the new virtual table.
*/
................................................................................
    }
#endif
  }
  if( db->mallocFailed ){
    rc = SQLITE_NOMEM_BKPT;
    sqlite3ResetAllSchemasOfConnection(db);
  }
  if( rc==SQLITE_OK || (db->flags&SQLITE_WriteSchema)){
    /* Black magic: If the SQLITE_WriteSchema flag is set, then consider
    ** the schema loaded, even if errors occurred. In this situation the 
    ** current sqlite3_prepare() operation will fail, but the following one
    ** will attempt to compile the supplied statement against whatever subset
    ** of the schema was loaded before the error occurred. The primary
    ** purpose of this is to allow access to the sqlite_master table
    ** even when its contents have been corrupted.
    */
................................................................................
  sqlite3BtreeLeaveAll(db);
  rc = sqlite3ApiExit(db, rc);
  assert( (rc&db->errMask)==rc );
  sqlite3_mutex_leave(db->mutex);
  return rc;
}

































































































































































































































































































/*
** Rerun the compilation of a statement after a schema change.
**
** If the statement is successfully recompiled, return SQLITE_OK. Otherwise,
** if the statement cannot be recompiled because another connection has
** locked the sqlite3_master table, return SQLITE_LOCKED. If any other error
** occurs, return SQLITE_SCHEMA.
................................................................................
  int i;
  int nDefer = 0;
  ExprList *pExtra = 0;
  for(i=0; i<pEList->nExpr; i++){
    struct ExprList_item *pItem = &pEList->a[i];
    if( pItem->u.x.iOrderByCol==0 ){
      Expr *pExpr = pItem->pExpr;
      Table *pTab = pExpr->pTab;
      if( pExpr->op==TK_COLUMN && pExpr->iColumn>=0 && pTab && !IsVirtual(pTab)
       && (pTab->aCol[pExpr->iColumn].colFlags & COLFLAG_SORTERREF)
      ){
        int j;
        for(j=0; j<nDefer; j++){
          if( pSort->aDefer[j].iCsr==pExpr->iTable ) break;
        }
................................................................................
              pPk = sqlite3PrimaryKeyIndex(pTab);
              nKey = pPk->nKeyCol;
            }
            for(k=0; k<nKey; k++){
              Expr *pNew = sqlite3PExpr(pParse, TK_COLUMN, 0, 0);
              if( pNew ){
                pNew->iTable = pExpr->iTable;
                pNew->pTab = pExpr->pTab;
                pNew->iColumn = pPk ? pPk->aiColumn[k] : -1;
                pExtra = sqlite3ExprListAppend(pParse, pExtra, pNew);
              }
            }
            pSort->aDefer[nDefer].pTab = pExpr->pTab;
            pSort->aDefer[nDefer].iCsr = pExpr->iTable;
            pSort->aDefer[nDefer].nKey = nKey;
            nDefer++;
          }
        }
        pItem->bSorterRef = 1;
      }
................................................................................
        ** This is not a problem, as the column type of "t1.col" is never
        ** used. When columnType() is called on the expression 
        ** "(SELECT t1.col)", the correct type is returned (see the TK_SELECT
        ** branch below.  */
        break;
      }

      assert( pTab && pExpr->pTab==pTab );
      if( pS ){
        /* The "table" is actually a sub-select or a view in the FROM clause
        ** of the SELECT statement. Return the declaration type and origin
        ** data for the result-set column of the sub-select.
        */
        if( iCol>=0 && iCol<pS->pEList->nExpr ){
          /* If iCol is less than zero, then the expression requests the
................................................................................
  srcName = (db->flags & SQLITE_ShortColNames)!=0 || fullName;
  sqlite3VdbeSetNumCols(v, pEList->nExpr);
  for(i=0; i<pEList->nExpr; i++){
    Expr *p = pEList->a[i].pExpr;

    assert( p!=0 );
    assert( p->op!=TK_AGG_COLUMN );  /* Agg processing has not run yet */
    assert( p->op!=TK_COLUMN || p->pTab!=0 ); /* Covering idx not yet coded */
    if( pEList->a[i].zName ){
      /* An AS clause always takes first priority */
      char *zName = pEList->a[i].zName;
      sqlite3VdbeSetColName(v, i, COLNAME_NAME, zName, SQLITE_TRANSIENT);
    }else if( srcName && p->op==TK_COLUMN ){
      char *zCol;
      int iCol = p->iColumn;
      pTab = p->pTab;
      assert( pTab!=0 );
      if( iCol<0 ) iCol = pTab->iPKey;
      assert( iCol==-1 || (iCol>=0 && iCol<pTab->nCol) );
      if( iCol<0 ){
        zCol = "rowid";
      }else{
        zCol = pTab->aCol[iCol].zName;
................................................................................
        pColExpr = pColExpr->pRight;
        assert( pColExpr!=0 );
      }
      assert( pColExpr->op!=TK_AGG_COLUMN );
      if( pColExpr->op==TK_COLUMN ){
        /* For columns use the column name name */
        int iCol = pColExpr->iColumn;
        Table *pTab = pColExpr->pTab;
        assert( pTab!=0 );
        if( iCol<0 ) iCol = pTab->iPKey;
        zName = iCol>=0 ? pTab->aCol[iCol].zName : "rowid";
      }else if( pColExpr->op==TK_ID ){
        assert( !ExprHasProperty(pColExpr, EP_IntValue) );
        zName = pColExpr->u.zToken;
      }else{
................................................................................
  int eDest = SRT_Fifo;         /* How to write to Queue */
  SelectDest destQueue;         /* SelectDest targetting the Queue table */
  int i;                        /* Loop counter */
  int rc;                       /* Result code */
  ExprList *pOrderBy;           /* The ORDER BY clause */
  Expr *pLimit;                 /* Saved LIMIT and OFFSET */
  int regLimit, regOffset;      /* Registers used by LIMIT and OFFSET */








  /* Obtain authorization to do a recursive query */
  if( sqlite3AuthCheck(pParse, SQLITE_RECURSIVE, 0, 0, 0) ) return;

  /* Process the LIMIT and OFFSET clauses, if they exist */
  addrBreak = sqlite3VdbeMakeLabel(v);
  p->nSelectRow = 320;  /* 4 billion rows */
................................................................................
#endif

  return 1;
}
#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */

/*
** A structure to keep track of all of the column values that fixed to
** a known value due to WHERE clause constraints of the form COLUMN=VALUE.
*/
typedef struct WhereConst WhereConst;
struct WhereConst {
  Parse *pParse;   /* Parsing context */
  int nConst;      /* Number for COLUMN=CONSTANT terms */
  int nChng;       /* Number of times a constant is propagated */
  Expr **apExpr;   /* [i*2] is COLUMN and [i*2+1] is VALUE */
};

/*
** Add a new entry to the pConst object

*/
static void constInsert(
  WhereConst *pConst,
  Expr *pColumn,
  Expr *pValue

){















  pConst->nConst++;
  pConst->apExpr = sqlite3DbReallocOrFree(pConst->pParse->db, pConst->apExpr,
                         pConst->nConst*2*sizeof(Expr*));
  if( pConst->apExpr==0 ){
    pConst->nConst = 0;
  }else{
................................................................................
  }
#ifndef SQLITE_OMIT_FLOATING_POINT
  if( pTab->aCol[i].affinity==SQLITE_AFF_REAL ){
    sqlite3VdbeAddOp1(v, OP_RealAffinity, iReg);
  }
#endif
}




















































/*
** Process an UPDATE statement.
**
**   UPDATE OR IGNORE table_wxyz SET a=b, c=d WHERE e<5 AND f NOT NULL;
**          \_______/ \________/     \______/       \________________/
*            onError   pTabList      pChanges             pWhere
................................................................................
  pTabList->a[0].colUsed = IsVirtual(pTab) ? ALLBITS : 0;

  hasFK = sqlite3FkRequired(pParse, pTab, aXRef, chngKey);

  /* There is one entry in the aRegIdx[] array for each index on the table
  ** being updated.  Fill in aRegIdx[] with a register number that will hold
  ** the key for accessing each index.
  **
  ** FIXME:  Be smarter about omitting indexes that use expressions.
  */
  for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
    int reg;
    if( chngKey || hasFK>1 || pIdx->pPartIdxWhere || pIdx==pPk ){


      reg = ++pParse->nMem;
      pParse->nMem += pIdx->nColumn;
    }else{
      reg = 0;
      for(i=0; i<pIdx->nKeyCol; i++){
        i16 iIdxCol = pIdx->aiColumn[i];
        if( iIdxCol<0 || aXRef[iIdxCol]>=0 ){
          reg = ++pParse->nMem;
          pParse->nMem += pIdx->nColumn;
          if( (onError==OE_Replace)
           || (onError==OE_Default && pIdx->onError==OE_Replace) 
          ){
            bReplace = 1;
          }
................................................................................

  /* Populate the argument registers. */
  for(i=0; i<pTab->nCol; i++){
    if( aXRef[i]>=0 ){
      sqlite3ExprCode(pParse, pChanges->a[aXRef[i]].pExpr, regArg+2+i);
    }else{
      sqlite3VdbeAddOp3(v, OP_VColumn, iCsr, i, regArg+2+i);
      sqlite3VdbeChangeP5(v, 1); /* Enable sqlite3_vtab_nochange() */
    }
  }
  if( HasRowid(pTab) ){
    sqlite3VdbeAddOp2(v, OP_Rowid, iCsr, regArg);
    if( pRowid ){
      sqlite3ExprCode(pParse, pRowid, regArg+1);
    }else{
................................................................................
  saved_flags = db->flags;
  saved_mDbFlags = db->mDbFlags;
  saved_nChange = db->nChange;
  saved_nTotalChange = db->nTotalChange;
  saved_mTrace = db->mTrace;
  db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks;
  db->mDbFlags |= DBFLAG_PreferBuiltin | DBFLAG_Vacuum;
  db->flags &= ~(SQLITE_ForeignKeys | SQLITE_ReverseOrder | SQLITE_CountRows);

  db->mTrace = 0;

  zDbMain = db->aDb[iDb].zDbSName;
  pMain = db->aDb[iDb].pBt;
  isMemDb = sqlite3PagerIsMemdb(sqlite3BtreePager(pMain));

  /* Attach the temporary database as 'vacuum_db'. The synchronous pragma
................................................................................
SQLITE_PRIVATE void sqlite3VtabBeginParse(
  Parse *pParse,        /* Parsing context */
  Token *pName1,        /* Name of new table, or database name */
  Token *pName2,        /* Name of new table or NULL */
  Token *pModuleName,   /* Name of the module for the virtual table */
  int ifNotExists       /* No error if the table already exists */
){
  int iDb;              /* The database the table is being created in */
  Table *pTable;        /* The new virtual table */
  sqlite3 *db;          /* Database connection */

  sqlite3StartTable(pParse, pName1, pName2, 0, 0, 1, ifNotExists);
  pTable = pParse->pNewTable;
  if( pTable==0 ) return;
  assert( 0==pTable->pIndex );

  db = pParse->db;
  iDb = sqlite3SchemaToIndex(db, pTable->pSchema);
  assert( iDb>=0 );

  assert( pTable->nModuleArg==0 );
  addModuleArgument(db, pTable, sqlite3NameFromToken(db, pModuleName));
  addModuleArgument(db, pTable, 0);
  addModuleArgument(db, pTable, sqlite3DbStrDup(db, pTable->zName));
  assert( (pParse->sNameToken.z==pName2->z && pName2->z!=0)
       || (pParse->sNameToken.z==pName1->z && pName2->z==0)
................................................................................
#ifndef SQLITE_OMIT_AUTHORIZATION
  /* Creating a virtual table invokes the authorization callback twice.
  ** The first invocation, to obtain permission to INSERT a row into the
  ** sqlite_master table, has already been made by sqlite3StartTable().
  ** The second call, to obtain permission to create the table, is made now.
  */
  if( pTable->azModuleArg ){


    sqlite3AuthCheck(pParse, SQLITE_CREATE_VTABLE, pTable->zName, 
            pTable->azModuleArg[0], pParse->db->aDb[iDb].zDbSName);
  }
#endif
}

/*
................................................................................
  void *pArg = 0;
  FuncDef *pNew;
  int rc = 0;

  /* Check to see the left operand is a column in a virtual table */
  if( NEVER(pExpr==0) ) return pDef;
  if( pExpr->op!=TK_COLUMN ) return pDef;
  pTab = pExpr->pTab;
  if( pTab==0 ) return pDef;
  if( !IsVirtual(pTab) ) return pDef;
  pVtab = sqlite3GetVTable(db, pTab)->pVtab;
  assert( pVtab!=0 );
  assert( pVtab->pModule!=0 );
  pMod = (sqlite3_module *)pVtab->pModule;
  if( pMod->xFindFunction==0 ) return pDef;
................................................................................
  WhereLoop *pNew;          /* Template WhereLoop */
  WhereOrSet *pOrSet;       /* Record best loops here, if not NULL */
#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
  UnpackedRecord *pRec;     /* Probe for stat4 (if required) */
  int nRecValid;            /* Number of valid fields currently in pRec */
#endif
  unsigned int bldFlags;    /* SQLITE_BLDF_* flags */

};

/* Allowed values for WhereLoopBuider.bldFlags */
#define SQLITE_BLDF_INDEXED  0x0001   /* An index is used */
#define SQLITE_BLDF_UNIQUE   0x0002   /* All keys of a UNIQUE index used */





















/*
** The WHERE clause processing routine has two halves.  The
** first part does the start of the WHERE loop and the second
** half does the tail of the WHERE loop.  An instance of
** this structure is returned by the first half and passed
** into the second half to give some continuity.
................................................................................
    ExprList *pLhs = 0;         /* New LHS after mods */
    int i;                      /* Loop counter */
    Select *pSelect;            /* Pointer to the SELECT on the RHS */

    for(i=iEq; i<pLoop->nLTerm; i++){
      if( pLoop->aLTerm[i]->pExpr==pX ){
        int iField = pLoop->aLTerm[i]->iField - 1;
        assert( pOrigRhs->a[iField].pExpr!=0 );
        pRhs = sqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr);
        pOrigRhs->a[iField].pExpr = 0;
        assert( pOrigLhs->a[iField].pExpr!=0 );
        pLhs = sqlite3ExprListAppend(pParse, pLhs, pOrigLhs->a[iField].pExpr);
        pOrigLhs->a[iField].pExpr = 0;
      }
    }
................................................................................
*/
static int whereIndexExprTransNode(Walker *p, Expr *pExpr){
  IdxExprTrans *pX = p->u.pIdxTrans;
  if( sqlite3ExprCompare(0, pExpr, pX->pIdxExpr, pX->iTabCur)==0 ){
    pExpr->op = TK_COLUMN;
    pExpr->iTable = pX->iIdxCur;
    pExpr->iColumn = pX->iIdxCol;
    pExpr->pTab = 0;
    return WRC_Prune;
  }else{
    return WRC_Continue;
  }
}

/*
................................................................................
        */
        if( sqlite3Isdigit(zNew[0])
         || zNew[0]=='-'
         || (zNew[0]+1=='0' && iTo==1)
        ){
          if( pLeft->op!=TK_COLUMN 
           || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT 
           || IsVirtual(pLeft->pTab)  /* Value might be numeric */
          ){
            sqlite3ExprDelete(db, pPrefix);
            sqlite3ValueFree(pVal);
            return 0;
          }
        }
      }
................................................................................
    ** virtual table on their second argument, which is the same as
    ** the left-hand side operand in their in-fix form.
    **
    **       vtab_column MATCH expression
    **       MATCH(expression,vtab_column)
    */
    pCol = pList->a[1].pExpr;
    if( pCol->op==TK_COLUMN && IsVirtual(pCol->pTab) ){
      for(i=0; i<ArraySize(aOp); i++){
        if( sqlite3StrICmp(pExpr->u.zToken, aOp[i].zOp)==0 ){
          *peOp2 = aOp[i].eOp2;
          *ppRight = pList->a[0].pExpr;
          *ppLeft = pCol;
          return 1;
        }
................................................................................
    **      OVERLOADED(vtab_column,expression)
    **
    ** Historically, xFindFunction expected to see lower-case function
    ** names.  But for this use case, xFindFunction is expected to deal
    ** with function names in an arbitrary case.
    */
    pCol = pList->a[0].pExpr;
    if( pCol->op==TK_COLUMN && IsVirtual(pCol->pTab) ){
      sqlite3_vtab *pVtab;
      sqlite3_module *pMod;
      void (*xNotUsed)(sqlite3_context*,int,sqlite3_value**);
      void *pNotUsed;
      pVtab = sqlite3GetVTable(db, pCol->pTab)->pVtab;
      assert( pVtab!=0 );
      assert( pVtab->pModule!=0 );
      pMod = (sqlite3_module *)pVtab->pModule;
      if( pMod->xFindFunction!=0 ){
        i = pMod->xFindFunction(pVtab,2, pExpr->u.zToken, &xNotUsed, &pNotUsed);
        if( i>=SQLITE_INDEX_CONSTRAINT_FUNCTION ){
          *peOp2 = i;
................................................................................
        }
      }
    }
  }else if( pExpr->op==TK_NE || pExpr->op==TK_ISNOT || pExpr->op==TK_NOTNULL ){
    int res = 0;
    Expr *pLeft = pExpr->pLeft;
    Expr *pRight = pExpr->pRight;
    if( pLeft->op==TK_COLUMN && IsVirtual(pLeft->pTab) ){
      res++;
    }
    if( pRight && pRight->op==TK_COLUMN && IsVirtual(pRight->pTab) ){
      res++;
      SWAP(Expr*, pLeft, pRight);
    }
    *ppLeft = pLeft;
    *ppRight = pRight;
    if( pExpr->op==TK_NE ) *peOp2 = SQLITE_INDEX_CONSTRAINT_NE;
    if( pExpr->op==TK_ISNOT ) *peOp2 = SQLITE_INDEX_CONSTRAINT_ISNOT;
................................................................................
  ** virtual term of that form.
  **
  ** Note that the virtual term must be tagged with TERM_VNULL.
  */
  if( pExpr->op==TK_NOTNULL
   && pExpr->pLeft->op==TK_COLUMN
   && pExpr->pLeft->iColumn>=0

   && OptimizationEnabled(db, SQLITE_Stat34)
  ){
    Expr *pNewExpr;
    Expr *pLeft = pExpr->pLeft;
    int idxNew;
    WhereTerm *pNewTerm;

................................................................................
  Expr *pTerm;
  if( pItem->fg.isTabFunc==0 ) return;
  pTab = pItem->pTab;
  assert( pTab!=0 );
  pArgs = pItem->u1.pFuncArg;
  if( pArgs==0 ) return;
  for(j=k=0; j<pArgs->nExpr; j++){

    while( k<pTab->nCol && (pTab->aCol[k].colFlags & COLFLAG_HIDDEN)==0 ){k++;}
    if( k>=pTab->nCol ){
      sqlite3ErrorMsg(pParse, "too many arguments on %s() - max %d",
                      pTab->zName, j);
      return;
    }
    pColRef = sqlite3ExprAlloc(pParse->db, TK_COLUMN, 0, 0);
    if( pColRef==0 ) return;
    pColRef->iTable = pItem->iCursor;
    pColRef->iColumn = k++;
    pColRef->pTab = pTab;
    pTerm = sqlite3PExpr(pParse, TK_EQ, pColRef,
                         sqlite3ExprDup(pParse->db, pArgs->a[j].pExpr, 0));

    whereClauseInsert(pWC, pTerm, TERM_DYNAMIC);
  }
}

/************** End of whereexpr.c *******************************************/
/************** Begin file where.c *******************************************/
/*
................................................................................
  if( pPartial ) sqlite3VdbeResolveLabel(v, iContinue);
  if( pTabItem->fg.viaCoroutine ){
    sqlite3VdbeChangeP2(v, addrCounter, regBase+n);
    testcase( pParse->db->mallocFailed );
    translateColumnToCopy(pParse, addrTop, pLevel->iTabCur,
                          pTabItem->regResult, 1);
    sqlite3VdbeGoto(v, addrTop);
    pTabItem->fg.viaCoroutine = 0;
  }else{
    sqlite3VdbeAddOp2(v, OP_Next, pLevel->iTabCur, addrTop+1); VdbeCoverage(v);
  }
  sqlite3VdbeChangeP5(v, SQLITE_STMTSTATUS_AUTOINDEX);
  sqlite3VdbeJumpHere(v, addrTop);
  sqlite3ReleaseTempReg(pParse, regRecord);
  
................................................................................
**    (4)  The template has the same or lower cost than the current loop
*/
static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){
  WhereLoop **ppPrev, *p;
  WhereInfo *pWInfo = pBuilder->pWInfo;
  sqlite3 *db = pWInfo->pParse->db;
  int rc;









  /* If pBuilder->pOrSet is defined, then only keep track of the costs
  ** and prereqs.
  */
  if( pBuilder->pOrSet!=0 ){
    if( pTemplate->nLTerm ){
#if WHERETRACE_ENABLED
................................................................................
  int rc = SQLITE_OK;
  WhereLoop *pNew;
  u8 priorJointype = 0;

  /* Loop over the tables in the join, from left to right */
  pNew = pBuilder->pNew;
  whereLoopInit(pNew);

  for(iTab=0, pItem=pTabList->a; pItem<pEnd; iTab++, pItem++){
    Bitmask mUnusable = 0;
    pNew->iTab = iTab;

    pNew->maskSelf = sqlite3WhereGetMask(&pWInfo->sMaskSet, pItem->iCursor);
    if( ((pItem->fg.jointype|priorJointype) & (JT_LEFT|JT_CROSS))!=0 ){
      /* This condition is true when pItem is the FROM clause term on the
      ** right-hand-side of a LEFT or CROSS JOIN.  */
      mPrereq = mPrior;
    }
    priorJointype = pItem->fg.jointype;
................................................................................
    {
      rc = whereLoopAddBtree(pBuilder, mPrereq);
    }
    if( rc==SQLITE_OK && pBuilder->pWC->hasOr ){
      rc = whereLoopAddOr(pBuilder, mPrereq, mUnusable);
    }
    mPrior |= pNew->maskSelf;
    if( rc || db->mallocFailed ) break;








  }

  whereLoopClear(db, pNew);
  return rc;
}

/*
................................................................................
      if( i==nSrc ) return WRC_Continue;
    }
  }

  switch( pExpr->op ){

    case TK_FUNCTION:
      if( pExpr->pWin==0 ){
        break;
      }else{
        Window *pWin;
        for(pWin=p->pWin; pWin; pWin=pWin->pNextWin){
          if( pExpr->pWin==pWin ){
            assert( pWin->pOwner==pExpr );
            return WRC_Prune;
          }
        }
      }
      /* Fall through.  */

................................................................................
** any SQL window functions, this function is a no-op. Otherwise, it 
** rewrites the SELECT statement so that window function xStep functions
** are invoked in the correct order as described under "SELECT REWRITING"
** at the top of this file.
*/
SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){
  int rc = SQLITE_OK;
  if( p->pWin ){
    Vdbe *v = sqlite3GetVdbe(pParse);
    sqlite3 *db = pParse->db;
    Select *pSub = 0;             /* The subquery */
    SrcList *pSrc = p->pSrc;
    Expr *pWhere = p->pWhere;
    ExprList *pGroupBy = p->pGroupBy;
    Expr *pHaving = p->pHaving;
................................................................................
}

/*
** Attach window object pWin to expression p.
*/
SQLITE_PRIVATE void sqlite3WindowAttach(Parse *pParse, Expr *p, Window *pWin){
  if( p ){

    /* This routine is only called for the parser.  If pWin was not
    ** allocated due to an OOM, then the parser would fail before ever
    ** invoking this routine */
    if( ALWAYS(pWin) ){
      p->pWin = pWin;

      pWin->pOwner = p;
      if( p->flags & EP_Distinct ){
        sqlite3ErrorMsg(pParse,
           "DISTINCT is not supported for window functions");
      }
    }
  }else{
................................................................................
/*
** Allocate and return a duplicate of the Window object indicated by the
** third argument. Set the Window.pOwner field of the new object to
** pOwner.
*/
SQLITE_PRIVATE Window *sqlite3WindowDup(sqlite3 *db, Expr *pOwner, Window *p){
  Window *pNew = 0;
  if( p ){
    pNew = sqlite3DbMallocZero(db, sizeof(Window));
    if( pNew ){
      pNew->zName = sqlite3DbStrDup(db, p->zName);
      pNew->pFilter = sqlite3ExprDup(db, p->pFilter, 0);
      pNew->pPartition = sqlite3ExprListDup(db, p->pPartition, 0);
      pNew->pOrderBy = sqlite3ExprListDup(db, p->pOrderBy, 0);
      pNew->eType = p->eType;
................................................................................
      p->op = (u8)op;
      p->affinity = 0;
      p->flags = EP_Leaf;
      p->iAgg = -1;
      p->pLeft = p->pRight = 0;
      p->x.pList = 0;
      p->pAggInfo = 0;
      p->pTab = 0;
      p->op2 = 0;
      p->iTable = 0;
      p->iColumn = 0;
#ifndef SQLITE_OMIT_WINDOWFUNC
      p->pWin = 0;
#endif
      p->u.zToken = (char*)&p[1];
      memcpy(p->u.zToken, t.z, t.n);
      p->u.zToken[t.n] = 0;
      if( sqlite3Isquote(p->u.zToken[0]) ){
        if( p->u.zToken[0]=='"' ) p->flags |= EP_DblQuoted;
        sqlite3Dequote(p->u.zToken);
      }
................................................................................
#define sqlite3ParserARG_STORE
#define sqlite3ParserCTX_SDECL Parse *pParse;
#define sqlite3ParserCTX_PDECL ,Parse *pParse
#define sqlite3ParserCTX_PARAM ,pParse
#define sqlite3ParserCTX_FETCH Parse *pParse=yypParser->pParse;
#define sqlite3ParserCTX_STORE yypParser->pParse=pParse;
#define YYFALLBACK 1
#define YYNSTATE             521
#define YYNRULE              367
#define YYNTOKEN             155
#define YY_MAX_SHIFT         520
#define YY_MIN_SHIFTREDUCE   756
#define YY_MAX_SHIFTREDUCE   1122
#define YY_ERROR_ACTION      1123
#define YY_ACCEPT_ACTION     1124
#define YY_NO_ACTION         1125
#define YY_MIN_REDUCE        1126
#define YY_MAX_REDUCE        1492
/************* End control #defines *******************************************/
#define YY_NLOOKAHEAD ((int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0])))

/* Define the yytestcase() macro to be a no-op if is not already defined
** otherwise.
**
** Applications can choose to define yytestcase() in the %include section
................................................................................
**  yy_reduce_ofst[]   For each state, the offset into yy_action for
**                     shifting non-terminals after a reduce.
**  yy_default[]       Default action for each state.
**
*********** Begin parsing tables **********************************************/
#define YY_ACTTAB_COUNT (2009)
static const YYACTIONTYPE yy_action[] = {
 /*     0 */   368,  105,  102,  197,  105,  102,  197,  515, 1124,    1,
 /*    10 */     1,  520,    2, 1128,  515, 1192, 1171, 1456,  275,  370,
 /*    20 */   127, 1389, 1197, 1197, 1192, 1166,  178, 1205,   64,   64,
 /*    30 */   477,  887,  322,  428,  348,   37,   37,  808,  362,  888,
 /*    40 */   509,  509,  509,  112,  113,  103, 1100, 1100,  953,  956,
 /*    50 */   946,  946,  110,  110,  111,  111,  111,  111,  365,  252,
 /*    60 */   252,  515,  252,  252,  497,  515,  309,  515,  459,  515,
 /*    70 */  1079,  491,  512,  478,    6,  512,  809,  134,  498,  228,
 /*    80 */   194,  428,   37,   37,  515,  208,   64,   64,   64,   64,
 /*    90 */    13,   13,  109,  109,  109,  109,  108,  108,  107,  107,
 /*   100 */   107,  106,  401,  258,  381,   13,   13,  398,  397,  428,
 /*   110 */   252,  252,  370,  476,  405, 1104, 1079, 1080, 1081,  386,
 /*   120 */  1106,  390,  497,  512,  497, 1423, 1419,  304, 1105,  307,
 /*   130 */  1256,  496,  370,  499,   16,   16,  112,  113,  103, 1100,
 /*   140 */  1100,  953,  956,  946,  946,  110,  110,  111,  111,  111,
 /*   150 */   111,  262, 1107,  495, 1107,  401,  112,  113,  103, 1100,
 /*   160 */  1100,  953,  956,  946,  946,  110,  110,  111,  111,  111,
 /*   170 */   111,  129, 1425,  343, 1420,  339, 1059,  492, 1057,  263,
 /*   180 */    73,  105,  102,  197,  994,  109,  109,  109,  109,  108,
 /*   190 */   108,  107,  107,  107,  106,  401,  370,  111,  111,  111,
 /*   200 */   111,  104,  492,   89, 1432,  109,  109,  109,  109,  108,
 /*   210 */   108,  107,  107,  107,  106,  401,  111,  111,  111,  111,
 /*   220 */   112,  113,  103, 1100, 1100,  953,  956,  946,  946,  110,
 /*   230 */   110,  111,  111,  111,  111,  109,  109,  109,  109,  108,
 /*   240 */   108,  107,  107,  107,  106,  401,  114,  108,  108,  107,
 /*   250 */   107,  107,  106,  401,  109,  109,  109,  109,  108,  108,
 /*   260 */   107,  107,  107,  106,  401,  152,  399,  399,  399,  109,
 /*   270 */   109,  109,  109,  108,  108,  107,  107,  107,  106,  401,
 /*   280 */   178,  493, 1412,  434, 1037, 1486, 1079,  515, 1486,  370,
 /*   290 */   421,  297,  357,  412,   74, 1079,  109,  109,  109,  109,
 /*   300 */   108,  108,  107,  107,  107,  106,  401, 1413,   37,   37,
 /*   310 */  1431,  274,  506,  112,  113,  103, 1100, 1100,  953,  956,
 /*   320 */   946,  946,  110,  110,  111,  111,  111,  111, 1436,  520,
 /*   330 */     2, 1128, 1079, 1080, 1081,  430,  275, 1079,  127,  366,
 /*   340 */   933, 1079, 1080, 1081,  220, 1205,  913,  458,  455,  454,
 /*   350 */   392,  167,  515, 1035,  152,  445,  924,  453,  152,  874,
 /*   360 */   923,  289,  109,  109,  109,  109,  108,  108,  107,  107,
 /*   370 */   107,  106,  401,   13,   13,  261,  853,  252,  252,  227,
 /*   380 */   106,  401,  370, 1079, 1080, 1081,  311,  388, 1079,  296,
 /*   390 */   512,  923,  923,  925,  231,  323, 1255, 1388, 1423,  490,
 /*   400 */   274,  506,   12,  208,  274,  506,  112,  113,  103, 1100,
 /*   410 */  1100,  953,  956,  946,  946,  110,  110,  111,  111,  111,
 /*   420 */   111, 1440,  286, 1128,  288, 1079, 1097,  247,  275, 1098,
 /*   430 */   127,  387,  405,  389, 1079, 1080, 1081, 1205,  159,  238,
 /*   440 */   255,  321,  461,  316,  460,  225,  790,  105,  102,  197,
 /*   450 */   513,  314,  842,  842,  445,  109,  109,  109,  109,  108,
 /*   460 */   108,  107,  107,  107,  106,  401,  515,  514,  515,  252,
 /*   470 */   252, 1079, 1080, 1081,  435,  370, 1098,  933, 1460,  794,
 /*   480 */   274,  506,  512,  105,  102,  197,  336,   63,   63,   64,
 /*   490 */    64,   27,  790,  924,  287,  208, 1354,  923,  515,  112,
 /*   500 */   113,  103, 1100, 1100,  953,  956,  946,  946,  110,  110,
 /*   510 */   111,  111,  111,  111,  107,  107,  107,  106,  401,   49,
 /*   520 */    49,  515,   28, 1079,  405,  497,  421,  297,  923,  923,
 /*   530 */   925,  186,  468, 1079,  467,  999,  999,  442,  515, 1079,
 /*   540 */   334,  515,   45,   45, 1083,  342,  173,  168,  109,  109,
 /*   550 */   109,  109,  108,  108,  107,  107,  107,  106,  401,   13,
 /*   560 */    13,  205,   13,   13,  252,  252, 1195, 1195,  370, 1079,
 /*   570 */  1080, 1081,  787,  265,    5,  359,  494,  512,  469, 1079,
 /*   580 */  1080, 1081,  398,  397, 1079, 1079, 1080, 1081,    3,  282,
 /*   590 */  1079, 1083,  112,  113,  103, 1100, 1100,  953,  956,  946,
 /*   600 */   946,  110,  110,  111,  111,  111,  111,  252,  252, 1015,
 /*   610 */   220, 1079,  873,  458,  455,  454,  943,  943,  954,  957,
 /*   620 */   512,  252,  252,  453, 1016, 1079,  445, 1107, 1209, 1107,
 /*   630 */  1079, 1080, 1081,  515,  512,  426, 1079, 1080, 1081, 1017,
 /*   640 */   512,  109,  109,  109,  109,  108,  108,  107,  107,  107,
 /*   650 */   106,  401, 1052,  515,   50,   50,  515, 1079, 1080, 1081,
 /*   660 */   828,  370, 1051,  379,  411, 1064, 1358,  207,  408,  773,
 /*   670 */   829, 1079, 1080, 1081,   64,   64,  322,   64,   64, 1302,
 /*   680 */   947,  411,  410, 1358, 1360,  112,  113,  103, 1100, 1100,
 /*   690 */   953,  956,  946,  946,  110,  110,  111,  111,  111,  111,
 /*   700 */   294,  482,  515, 1037, 1487,  515,  434, 1487,  354, 1120,
 /*   710 */   483,  996,  913,  485,  466,  996,  132,  178,   33,  450,
 /*   720 */  1203,  136,  406,   64,   64,  479,   64,   64,  419,  369,
 /*   730 */   283, 1146,  252,  252,  109,  109,  109,  109,  108,  108,
 /*   740 */   107,  107,  107,  106,  401,  512,  224,  440,  411,  266,
 /*   750 */  1358,  266,  252,  252,  370,  296,  416,  284,  934,  396,
 /*   760 */   976,  470,  400,  252,  252,  512,    9,  473,  231,  500,
 /*   770 */   354, 1036, 1035, 1488,  355,  374,  512, 1121,  112,  113,
 /*   780 */   103, 1100, 1100,  953,  956,  946,  946,  110,  110,  111,
 /*   790 */   111,  111,  111,  252,  252, 1015,  515, 1347,  295,  252,
 /*   800 */   252,  252,  252, 1098,  375,  249,  512,  445,  872,  322,
 /*   810 */  1016,  480,  512,  195,  512,  434,  273,   15,   15,  515,
 /*   820 */   314,  515,   95,  515,   93, 1017,  367,  109,  109,  109,
 /*   830 */   109,  108,  108,  107,  107,  107,  106,  401,  515, 1121,
 /*   840 */    39,   39,   51,   51,   52,   52,  503,  370,  515, 1204,
 /*   850 */  1098,  918,  439,  341,  133,  436,  223,  222,  221,   53,
 /*   860 */    53,  322, 1400,  761,  762,  763,  515,  370,   88,   54,
 /*   870 */    54,  112,  113,  103, 1100, 1100,  953,  956,  946,  946,
 /*   880 */   110,  110,  111,  111,  111,  111,  407,   55,   55,  196,
 /*   890 */   515,  112,  113,  103, 1100, 1100,  953,  956,  946,  946,
 /*   900 */   110,  110,  111,  111,  111,  111,  135,  264, 1149,  376,
 /*   910 */   515,   40,   40,  515,  872,  515,  993,  515,  993,  116,
 /*   920 */   109,  109,  109,  109,  108,  108,  107,  107,  107,  106,
 /*   930 */   401,   41,   41,  515,   43,   43,   44,   44,   56,   56,
 /*   940 */   109,  109,  109,  109,  108,  108,  107,  107,  107,  106,
 /*   950 */   401,  515,  379,  515,   57,   57,  515,  799,  515,  379,
 /*   960 */   515,  445,  200,  515,  323,  515, 1397,  515, 1459,  515,
 /*   970 */  1287,  817,   58,   58,   14,   14,  515,   59,   59,  118,
 /*   980 */   118,   60,   60,  515,   46,   46,   61,   61,   62,   62,
 /*   990 */    47,   47,  515,  190,  189,   91,  515,  140,  140,  515,
 /*  1000 */   394,  515,  277, 1200,  141,  141,  515, 1115,  515,  992,
 /*  1010 */   515,  992,  515,   69,   69,  370,  278,   48,   48,  259,
 /*  1020 */    65,   65,  119,  119,  246,  246,  260,   66,   66,  120,
 /*  1030 */   120,  121,  121,  117,  117,  370,  515,  512,  383,  112,
 /*  1040 */   113,  103, 1100, 1100,  953,  956,  946,  946,  110,  110,
 /*  1050 */   111,  111,  111,  111,  515,  872,  515,  139,  139,  112,
 /*  1060 */   113,  103, 1100, 1100,  953,  956,  946,  946,  110,  110,
 /*  1070 */   111,  111,  111,  111, 1287,  138,  138,  125,  125,  515,
 /*  1080 */    12,  515,  281, 1287,  515,  445,  131, 1287,  109,  109,
 /*  1090 */   109,  109,  108,  108,  107,  107,  107,  106,  401,  515,
 /*  1100 */   124,  124,  122,  122,  515,  123,  123,  515,  109,  109,
 /*  1110 */   109,  109,  108,  108,  107,  107,  107,  106,  401,  515,
 /*  1120 */    68,   68,  463,  783,  515,   70,   70,  302,   67,   67,
 /*  1130 */  1032,  253,  253,  356, 1287,  191,  196, 1433,  465, 1301,
 /*  1140 */    38,   38,  384,   94,  512,   42,   42,  177,  848,  274,
 /*  1150 */   506,  385,  420,  847, 1356,  441,  508,  376,  377,  153,
 /*  1160 */   423,  872,  432,  370,  224,  251,  194,  887,  182,  293,
 /*  1170 */   783,  848,   88,  254,  466,  888,  847,  915,  807,  806,
 /*  1180 */   230, 1241,  910,  370,   17,  413,  797,  112,  113,  103,
 /*  1190 */  1100, 1100,  953,  956,  946,  946,  110,  110,  111,  111,
 /*  1200 */   111,  111,  395,  814,  815, 1175,  983,  112,  101,  103,
 /*  1210 */  1100, 1100,  953,  956,  946,  946,  110,  110,  111,  111,
 /*  1220 */   111,  111,  375,  422,  427,  429,  298,  230,  230,   88,
 /*  1230 */  1240,  451,  312,  797,  226,   88,  109,  109,  109,  109,
 /*  1240 */   108,  108,  107,  107,  107,  106,  401,   86,  433,  979,
 /*  1250 */   927,  881,  226,  983,  230,  415,  109,  109,  109,  109,
 /*  1260 */   108,  108,  107,  107,  107,  106,  401,  320,  845,  781,
 /*  1270 */   846,  100,  130,  100, 1403,  290,  370,  319, 1377, 1376,
 /*  1280 */   437, 1449,  299, 1237,  303,  306,  308,  310, 1188, 1174,
 /*  1290 */  1173, 1172,  315,  324,  325, 1228,  370,  927, 1249,  271,
 /*  1300 */  1286,  113,  103, 1100, 1100,  953,  956,  946,  946,  110,
 /*  1310 */   110,  111,  111,  111,  111, 1224, 1235,  502,  501, 1292,
 /*  1320 */  1221, 1155,  103, 1100, 1100,  953,  956,  946,  946,  110,
 /*  1330 */   110,  111,  111,  111,  111, 1148, 1137, 1136, 1138, 1443,
 /*  1340 */   446,  244,  184,   98,  507,  188,    4,  353,  327,  109,
 /*  1350 */   109,  109,  109,  108,  108,  107,  107,  107,  106,  401,
 /*  1360 */   510,  329,  331,  199,  414,  456,  292,  285,  318,  109,
 /*  1370 */   109,  109,  109,  108,  108,  107,  107,  107,  106,  401,
 /*  1380 */    11, 1271, 1279,  402,  361,  192, 1171, 1351,  431,  505,
 /*  1390 */   346, 1350,  333,   98,  507,  504,    4,  187, 1446, 1115,
 /*  1400 */   233, 1396,  155, 1394, 1112,  152,   72,   75,  378,  425,
 /*  1410 */   510,  165,  149,  157,  933, 1276,   86,   30, 1268,  417,
 /*  1420 */    96,   96,    8,  160,  161,  162,  163,   97,  418,  402,
 /*  1430 */   517,  516,  449,  402,  923,  210,  358,  424, 1282,  438,
 /*  1440 */   169,  214,  360, 1345,   80,  504,   31,  444, 1365,  301,
 /*  1450 */   245,  274,  506,  216,  174,  305,  488,  447,  217,  462,
 /*  1460 */  1139,  487,  218,  363,  933,  923,  923,  925,  926,   24,
 /*  1470 */    96,   96, 1191, 1190, 1189,  391, 1182,   97, 1163,  402,
 /*  1480 */   517,  516,  799,  364,  923, 1162,  317, 1161,   98,  507,
 /*  1490 */  1181,    4, 1458,  472,  393,  269,  270,  475,  481, 1232,
 /*  1500 */    85, 1233,  326,  328,  232,  510,  495, 1231,  330,   98,
 /*  1510 */   507, 1230,    4,  486,  335,  923,  923,  925,  926,   24,
 /*  1520 */  1435, 1068,  404,  181,  336,  256,  510,  115,  402,  332,
 /*  1530 */   352,  352,  351,  241,  349, 1214, 1414,  770,  338,   10,
 /*  1540 */   504,  340,  272,   92, 1331, 1213,   87,  183,  484,  402,
 /*  1550 */   201,  488,  280,  239,  344,  345,  489, 1145,   29,  933,
 /*  1560 */   279,  504, 1074,  518,  240,   96,   96,  242,  243,  519,
 /*  1570 */  1134, 1129,   97,  154,  402,  517,  516,  372,  373,  923,
 /*  1580 */   933,  142,  143,  128, 1381,  267,   96,   96,  852,  757,
 /*  1590 */   203,  144,  403,   97, 1382,  402,  517,  516,  204, 1380,
 /*  1600 */   923,  146, 1379, 1159, 1158,   71, 1156,  276,  202,  185,
 /*  1610 */   923,  923,  925,  926,   24,  198,  257,  126,  991,  989,
 /*  1620 */   907,   98,  507,  156,    4,  145,  158,  206,  831,  209,
 /*  1630 */   291,  923,  923,  925,  926,   24, 1005,  911,  510,  164,
 /*  1640 */   147,  380,  371,  382,  166,   76,   77,  274,  506,  148,
 /*  1650 */    78,   79, 1008,  211,  212, 1004,  137,  213,   18,  300,
 /*  1660 */   230,  402,  997, 1109,  443,  215,   32,  170,  171,  772,
 /*  1670 */   409,  448,  319,  504,  219,  172,  452,   81,   19,  457,
 /*  1680 */   313,   20,   82,  268,  488,  150,  810,  179,   83,  487,
 /*  1690 */   464,  151,  933,  180,  959,   84, 1040,   34,   96,   96,
 /*  1700 */   471, 1041,   35,  474,  193,   97,  248,  402,  517,  516,
 /*  1710 */  1068,  404,  923,  250,  256,  880,  229,  175,  875,  352,
 /*  1720 */   352,  351,  241,  349,  100,   21,  770,   22, 1054, 1056,
 /*  1730 */     7,   98,  507, 1045,    4,  337, 1058,   23,  974,  201,
 /*  1740 */   176,  280,   88,  923,  923,  925,  926,   24,  510,  279,
 /*  1750 */   960,  958,  962, 1014,  963, 1013,  235,  234,   25,   36,
 /*  1760 */    99,   90,  507,  928,    4,  511,  350,  782,   26,  841,
 /*  1770 */   236,  402,  347, 1069,  237, 1125, 1125, 1451,  510,  203,
 /*  1780 */  1450, 1125, 1125,  504, 1125, 1125, 1125,  204, 1125, 1125,
 /*  1790 */   146, 1125, 1125, 1125, 1125, 1125, 1125,  202, 1125, 1125,
 /*  1800 */  1125,  402,  933, 1125, 1125, 1125, 1125, 1125,   96,   96,
 /*  1810 */  1125, 1125, 1125,  504, 1125,   97, 1125,  402,  517,  516,
 /*  1820 */  1125, 1125,  923, 1125, 1125, 1125, 1125, 1125, 1125, 1125,
 /*  1830 */  1125,  371,  933, 1125, 1125, 1125,  274,  506,   96,   96,
 /*  1840 */  1125, 1125, 1125, 1125, 1125,   97, 1125,  402,  517,  516,
 /*  1850 */  1125, 1125,  923,  923,  923,  925,  926,   24, 1125,  409,
 /*  1860 */  1125, 1125, 1125,  256, 1125, 1125, 1125, 1125,  352,  352,
 /*  1870 */   351,  241,  349, 1125, 1125,  770, 1125, 1125, 1125, 1125,
 /*  1880 */  1125, 1125, 1125,  923,  923,  925,  926,   24,  201, 1125,
 /*  1890 */   280, 1125, 1125, 1125, 1125, 1125, 1125, 1125,  279, 1125,
 /*  1900 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,
 /*  1910 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,
 /*  1920 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,  203, 1125,
 /*  1930 */  1125, 1125, 1125, 1125, 1125, 1125,  204, 1125, 1125,  146,
 /*  1940 */  1125, 1125, 1125, 1125, 1125, 1125,  202, 1125, 1125, 1125,
 /*  1950 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,
 /*  1960 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,
 /*  1970 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,
 /*  1980 */   371, 1125, 1125, 1125, 1125,  274,  506, 1125, 1125, 1125,
 /*  1990 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,
 /*  2000 */  1125, 1125, 1125, 1125, 1125, 1125, 1125, 1125,  409,
};
static const YYCODETYPE yy_lookahead[] = {
 /*     0 */   184,  238,  239,  240,  238,  239,  240,  163,  155,  156,
 /*    10 */   157,  158,  159,  160,  163,  191,  192,  183,  165,   19,
 /*    20 */   167,  258,  202,  203,  200,  191,  163,  174,  184,  185,
 /*    30 */   174,   31,  163,  163,  171,  184,  185,   35,  175,   39,
 /*    40 */   179,  180,  181,   43,   44,   45,   46,   47,   48,   49,
................................................................................
 /*  1340 */   251,  250,  209,   19,   20,  182,   22,  161,  222,   92,
 /*  1350 */    93,   94,   95,   96,   97,   98,   99,  100,  101,  102,
 /*  1360 */    36,  222,  222,  260,  226,  188,  256,  226,  187,   92,
 /*  1370 */    93,   94,   95,   96,   97,   98,   99,  100,  101,  102,
 /*  1380 */   210,  213,  213,   59,  213,  196,  192,  187,  256,  244,
 /*  1390 */   212,  187,  226,   19,   20,   71,   22,  210,  166,   60,
 /*  1400 */   130,  170,  260,  170,   38,   81,  257,  257,  170,  104,
 /*  1410 */    36,   22,   43,  201,   90,  236,  138,  235,  213,   18,
 /*  1420 */    96,   97,   48,  204,  204,  204,  204,  103,  170,  105,
 /*  1430 */   106,  107,   18,   59,  110,  169,  213,  213,  201,  170,
 /*  1440 */   201,  169,  236,  213,  146,   71,  235,   62,  253,  252,
 /*  1450 */   170,  127,  128,  169,   22,  170,   82,  189,  169,  104,
 /*  1460 */   170,   87,  169,  189,   90,  141,  142,  143,  144,  145,
 /*  1470 */    96,   97,  186,  186,  186,   64,  194,  103,  186,  105,
 /*  1480 */   106,  107,  115,  189,  110,  188,  186,  186,   19,   20,
 /*  1490 */   194,   22,  186,  189,  102,  246,  246,  189,  133,  228,
 /*  1500 */   104,  228,  227,  227,  170,   36,  134,  228,  227,   19,
 /*  1510 */    20,  228,   22,   84,  271,  141,  142,  143,  144,  145,
 /*  1520 */     0,    1,    2,  216,   22,    5,   36,  137,   59,  227,
 /*  1530 */    10,   11,   12,   13,   14,  217,  269,   17,  216,   22,
 /*  1540 */    71,  170,  243,  146,  241,  217,  136,  215,  135,   59,
 /*  1550 */    30,   82,   32,   25,  214,  213,   87,  173,   26,   90,
 /*  1560 */    40,   71,   13,  172,  164,   96,   97,  164,    6,  162,
 /*  1570 */   162,  162,  103,  263,  105,  106,  107,  266,  266,  110,
 /*  1580 */    90,  176,  176,  190,  182,  190,   96,   97,   98,    4,
 /*  1590 */    70,  176,    3,  103,  182,  105,  106,  107,   78,  182,
 /*  1600 */   110,   81,  182,  182,  182,  182,  182,  151,   88,   22,
 /*  1610 */   141,  142,  143,  144,  145,   15,   89,   16,   23,   23,
 /*  1620 */   128,   19,   20,  139,   22,  119,  131,   24,   20,  133,
 /*  1630 */    16,  141,  142,  143,  144,  145,    1,  140,   36,  131,
 /*  1640 */   119,   61,  122,   37,  139,   53,   53,  127,  128,  119,
 /*  1650 */    53,   53,  105,   34,  130,    1,    5,  104,   22,  149,
 /*  1660 */    26,   59,   68,   75,   41,  130,   24,   68,  104,   20,
 /*  1670 */   150,   19,  120,   71,  114,   22,   67,   22,   22,   67,
 /*  1680 */    23,   22,   22,   67,   82,   37,   28,   23,  138,   87,
 /*  1690 */    22,  153,   90,   23,   23,   26,   23,   22,   96,   97,
 /*  1700 */    24,   23,   22,   24,  130,  103,   23,  105,  106,  107,
 /*  1710 */     1,    2,  110,   23,    5,  105,   34,   22,  132,   10,
 /*  1720 */    11,   12,   13,   14,   26,   34,   17,   34,   85,   83,
 /*  1730 */    44,   19,   20,   23,   22,   24,   75,   34,   23,   30,
 /*  1740 */    26,   32,   26,  141,  142,  143,  144,  145,   36,   40,
 /*  1750 */    23,   23,   23,   23,   11,   23,   22,   26,   22,   22,
 /*  1760 */    22,   19,   20,   23,   22,   26,   15,   23,   22,  124,
 /*  1770 */   130,   59,   23,    1,  130,  277,  277,  130,   36,   70,
 /*  1780 */   130,  277,  277,   71,  277,  277,  277,   78,  277,  277,
 /*  1790 */    81,  277,  277,  277,  277,  277,  277,   88,  277,  277,
 /*  1800 */   277,   59,   90,  277,  277,  277,  277,  277,   96,   97,
 /*  1810 */   277,  277,  277,   71,  277,  103,  277,  105,  106,  107,
 /*  1820 */   277,  277,  110,  277,  277,  277,  277,  277,  277,  277,
 /*  1830 */   277,  122,   90,  277,  277,  277,  127,  128,   96,   97,
 /*  1840 */   277,  277,  277,  277,  277,  103,  277,  105,  106,  107,
 /*  1850 */   277,  277,  110,  141,  142,  143,  144,  145,  277,  150,
................................................................................
 /*  1960 */   277,  277,  277,  277,  277,  277,  277,  277,  277,  277,
 /*  1970 */   277,  277,  277,  277,  277,  277,  277,  277,  277,  277,
 /*  1980 */   122,  277,  277,  277,  277,  127,  128,  277,  277,  277,
 /*  1990 */   277,  277,  277,  277,  277,  277,  277,  277,  277,  277,
 /*  2000 */   277,  277,  277,  277,  277,  277,  277,  277,  150,  277,
 /*  2010 */   277,  277,  277,  277,  277,  277,  277,  277,  277,
};
#define YY_SHIFT_COUNT    (520)
#define YY_SHIFT_MIN      (0)
#define YY_SHIFT_MAX      (1858)
static const unsigned short int yy_shift_ofst[] = {
 /*     0 */  1709, 1520, 1858, 1324, 1324,  277, 1374, 1469, 1602, 1712,
 /*    10 */  1712, 1712,  273,    0,    0,  113, 1016, 1712, 1712, 1712,
 /*    20 */  1712, 1712, 1712, 1712, 1712, 1712, 1712,   11,   11,  236,
 /*    30 */   184,  277,  277,  277,  277,  277,  277,   93,  177,  270,
................................................................................
 /*   210 */   531,  531,  531,  531,  531,  531,  531,  531,  531,  531,
 /*   220 */   531,    2,    2,    2,  531,  531,  531,  531,  782,  531,
 /*   230 */   531,  531,  744,  531,  531,  783,  531,  531,  531,  531,
 /*   240 */   531,  531,  531,  531,  419,  682,  327,  370,  370,  370,
 /*   250 */   370, 1029,  327,  327, 1024,  897,  856,  947, 1109,  706,
 /*   260 */   706, 1143, 1109, 1109, 1143,  842,  945, 1118, 1136, 1136,
 /*   270 */  1136,  706,  676,  400, 1047,  694, 1339, 1270, 1270, 1366,
 /*   280 */  1366, 1270, 1305, 1389, 1369, 1278, 1401, 1401, 1401, 1401,
 /*   290 */  1270, 1414, 1278, 1278, 1305, 1389, 1369, 1369, 1278, 1270,
 /*   300 */  1414, 1298, 1385, 1270, 1414, 1432, 1270, 1414, 1270, 1414,
 /*   310 */  1432, 1355, 1355, 1355, 1411, 1432, 1355, 1367, 1355, 1411,
 /*   320 */  1355, 1355, 1432, 1392, 1392, 1432, 1365, 1396, 1365, 1396,
 /*   330 */  1365, 1396, 1365, 1396, 1270, 1372, 1429, 1502, 1390, 1372,
 /*   340 */  1517, 1270, 1397, 1390, 1410, 1413, 1278, 1528, 1532, 1549,
 /*   350 */  1549, 1562, 1562, 1562, 2009, 2009, 2009, 2009, 2009, 2009,
 /*   360 */  2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009,
 /*   370 */   570,  345,  686,  748,   50,  740, 1064, 1107,  469,  537,
 /*   380 */  1042, 1146, 1162, 1154, 1201, 1202, 1203, 1208, 1209, 1127,
 /*   390 */  1069, 1196, 1157, 1147, 1226, 1228, 1245,  775,  868, 1246,
 /*   400 */  1247, 1191, 1151, 1585, 1589, 1587, 1456, 1600, 1527, 1601,
 /*   410 */  1595, 1596, 1492, 1484, 1506, 1603, 1495, 1608, 1496, 1614,
 /*   420 */  1635, 1508, 1497, 1521, 1580, 1606, 1505, 1592, 1593, 1597,
 /*   430 */  1598, 1530, 1547, 1619, 1524, 1654, 1651, 1636, 1553, 1510,
 /*   440 */  1594, 1634, 1599, 1588, 1623, 1535, 1564, 1642, 1649, 1652,
 /*   450 */  1552, 1560, 1653, 1609, 1655, 1656, 1657, 1659, 1612, 1658,
 /*   460 */  1660, 1616, 1648, 1664, 1550, 1668, 1538, 1670, 1671, 1669,
 /*   470 */  1673, 1675, 1676, 1678, 1680, 1679, 1574, 1683, 1690, 1610,
 /*   480 */  1682, 1695, 1586, 1698, 1691, 1698, 1693, 1643, 1661, 1646,
 /*   490 */  1686, 1710, 1711, 1714, 1716, 1703, 1715, 1698, 1727, 1728,
 /*   500 */  1729, 1730, 1731, 1732, 1734, 1743, 1736, 1737, 1740, 1744,
 /*   510 */  1738, 1746, 1739, 1645, 1640, 1644, 1647, 1650, 1749, 1751,
 /*   520 */  1772,
};
#define YY_REDUCE_COUNT (369)
#define YY_REDUCE_MIN   (-237)
#define YY_REDUCE_MAX   (1424)
static const short yy_reduce_ofst[] = {
 /*     0 */  -147,  171,  263,  -96,  358, -144, -149, -102,  124, -156,
 /*    10 */   -98,  305,  401,  -57,  209, -237,  245,  -94,  -79,  189,
 /*    20 */   375,  490,  493,  378,  303,  539,  542,  501,  503,  554,
 /*    30 */   415,  526,  546,  557,  587,  593,  595, -234, -234, -234,
 /*    40 */  -234, -234, -234, -234, -234, -234, -234, -234, -234, -234,
 /*    50 */  -234, -234, -234, -234, -234, -234, -234, -234, -234, -234,
................................................................................
 /*   210 */  1112, 1115, 1116, 1117, 1119, 1120, 1121, 1122, 1123, 1124,
 /*   220 */  1125, 1012, 1096, 1097, 1128, 1129, 1130, 1131, 1070, 1135,
 /*   230 */  1137, 1152, 1077, 1153, 1155, 1114, 1156,  304, 1158, 1172,
 /*   240 */  1173, 1174, 1175, 1176, 1089, 1091, 1133, 1098, 1126, 1139,
 /*   250 */  1140, 1070, 1133, 1133, 1170, 1163, 1186, 1103, 1168, 1138,
 /*   260 */  1141, 1110, 1169, 1171, 1132, 1177, 1189, 1194, 1181, 1200,
 /*   270 */  1204, 1166, 1145, 1178, 1187, 1232, 1142, 1231, 1233, 1149,
 /*   280 */  1150, 1238, 1179, 1182, 1212, 1205, 1219, 1220, 1221, 1222,
 /*   290 */  1258, 1266, 1223, 1224, 1206, 1211, 1237, 1239, 1230, 1269,
 /*   300 */  1272, 1195, 1197, 1280, 1284, 1268, 1285, 1289, 1290, 1293,
 /*   310 */  1274, 1286, 1287, 1288, 1282, 1294, 1292, 1297, 1300, 1296,
 /*   320 */  1301, 1306, 1304, 1249, 1250, 1308, 1271, 1275, 1273, 1276,
 /*   330 */  1279, 1281, 1283, 1302, 1334, 1307, 1243, 1267, 1318, 1322,
 /*   340 */  1303, 1371, 1299, 1328, 1332, 1340, 1342, 1384, 1391, 1400,
 /*   350 */  1403, 1407, 1408, 1409, 1311, 1312, 1310, 1405, 1402, 1412,
 /*   360 */  1417, 1420, 1406, 1393, 1395, 1421, 1422, 1423, 1424, 1415,

};
static const YYACTIONTYPE yy_default[] = {
 /*     0 */  1492, 1492, 1492, 1340, 1123, 1229, 1123, 1123, 1123, 1340,
 /*    10 */  1340, 1340, 1123, 1259, 1259, 1391, 1154, 1123, 1123, 1123,
 /*    20 */  1123, 1123, 1123, 1123, 1339, 1123, 1123, 1123, 1123, 1123,
 /*    30 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1265, 1123,
 /*    40 */  1123, 1123, 1123, 1123, 1341, 1342, 1123, 1123, 1123, 1390,
 /*    50 */  1392, 1275, 1274, 1273, 1272, 1373, 1246, 1270, 1263, 1267,
 /*    60 */  1335, 1336, 1334, 1338, 1342, 1341, 1123, 1266, 1306, 1320,
 /*    70 */  1305, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*    80 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*    90 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   100 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   110 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1314, 1319, 1325,
 /*   120 */  1318, 1315, 1308, 1307, 1309, 1310, 1123, 1144, 1193, 1123,
 /*   130 */  1123, 1123, 1123, 1409, 1408, 1123, 1123, 1154, 1311, 1312,
 /*   140 */  1322, 1321, 1398, 1448, 1447, 1123, 1123, 1123, 1123, 1123,
 /*   150 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   160 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   170 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1154, 1150, 1300,
 /*   180 */  1299, 1418, 1150, 1253, 1123, 1404, 1229, 1220, 1123, 1123,
 /*   190 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   200 */  1123, 1395, 1393, 1123, 1355, 1123, 1123, 1123, 1123, 1123,
 /*   210 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   220 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   230 */  1123, 1123, 1225, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   240 */  1123, 1123, 1123, 1442, 1123, 1368, 1207, 1225, 1225, 1225,
 /*   250 */  1225, 1227, 1208, 1206, 1219, 1154, 1130, 1484, 1269, 1248,
 /*   260 */  1248, 1481, 1269, 1269, 1481, 1168, 1462, 1165, 1259, 1259,
 /*   270 */  1259, 1248, 1337, 1226, 1219, 1123, 1484, 1234, 1234, 1483,
 /*   280 */  1483, 1234, 1278, 1284, 1196, 1269, 1202, 1202, 1202, 1202,
 /*   290 */  1234, 1141, 1269, 1269, 1278, 1284, 1196, 1196, 1269, 1234,
 /*   300 */  1141, 1372, 1478, 1234, 1141, 1348, 1234, 1141, 1234, 1141,
 /*   310 */  1348, 1194, 1194, 1194, 1183, 1348, 1194, 1168, 1194, 1183,
 /*   320 */  1194, 1194, 1348, 1352, 1352, 1348, 1252, 1247, 1252, 1247,
 /*   330 */  1252, 1247, 1252, 1247, 1234, 1253, 1417, 1123, 1264, 1253,
 /*   340 */  1343, 1234, 1123, 1264, 1262, 1260, 1269, 1147, 1186, 1445,
 /*   350 */  1445, 1441, 1441, 1441, 1489, 1489, 1404, 1457, 1154, 1154,
 /*   360 */  1154, 1154, 1457, 1170, 1170, 1154, 1154, 1154, 1154, 1457,
 /*   370 */  1123, 1123, 1123, 1123, 1123, 1123, 1452, 1123, 1357, 1238,
 /*   380 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   390 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   400 */  1123, 1123, 1289, 1123, 1126, 1401, 1123, 1123, 1399, 1123,
 /*   410 */  1123, 1123, 1123, 1123, 1123, 1239, 1123, 1123, 1123, 1123,
 /*   420 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   430 */  1123, 1123, 1123, 1123, 1480, 1123, 1123, 1123, 1123, 1123,
 /*   440 */  1123, 1371, 1370, 1123, 1123, 1236, 1123, 1123, 1123, 1123,
 /*   450 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   460 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   470 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   480 */  1123, 1123, 1123, 1261, 1123, 1416, 1123, 1123, 1123, 1123,
 /*   490 */  1123, 1123, 1123, 1430, 1254, 1123, 1123, 1471, 1123, 1123,
 /*   500 */  1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123, 1123,
 /*   510 */  1123, 1123, 1466, 1210, 1291, 1123, 1290, 1294, 1123, 1135,

 /*   520 */  1123,
};
/********** End of lemon-generated parsing tables *****************************/

/* The next table maps tokens (terminal symbols) into fallback tokens.  
** If a construct like the following:
** 
**      %fallback ID X Y Z.
................................................................................
 /* 135 */ "groupby_opt ::= GROUP BY nexprlist",
 /* 136 */ "having_opt ::=",
 /* 137 */ "having_opt ::= HAVING expr",
 /* 138 */ "limit_opt ::=",
 /* 139 */ "limit_opt ::= LIMIT expr",
 /* 140 */ "limit_opt ::= LIMIT expr OFFSET expr",
 /* 141 */ "limit_opt ::= LIMIT expr COMMA expr",
 /* 142 */ "cmd ::= with DELETE FROM xfullname indexed_opt where_opt",
 /* 143 */ "where_opt ::=",
 /* 144 */ "where_opt ::= WHERE expr",
 /* 145 */ "cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt",
 /* 146 */ "setlist ::= setlist COMMA nm EQ expr",
 /* 147 */ "setlist ::= setlist COMMA LP idlist RP EQ expr",
 /* 148 */ "setlist ::= nm EQ expr",
 /* 149 */ "setlist ::= LP idlist RP EQ expr",
 /* 150 */ "cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert",
 /* 151 */ "cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES",
 /* 152 */ "upsert ::=",
................................................................................
  {  214,   -3 }, /* (135) groupby_opt ::= GROUP BY nexprlist */
  {  215,    0 }, /* (136) having_opt ::= */
  {  215,   -2 }, /* (137) having_opt ::= HAVING expr */
  {  217,    0 }, /* (138) limit_opt ::= */
  {  217,   -2 }, /* (139) limit_opt ::= LIMIT expr */
  {  217,   -4 }, /* (140) limit_opt ::= LIMIT expr OFFSET expr */
  {  217,   -4 }, /* (141) limit_opt ::= LIMIT expr COMMA expr */
  {  160,   -6 }, /* (142) cmd ::= with DELETE FROM xfullname indexed_opt where_opt */
  {  213,    0 }, /* (143) where_opt ::= */
  {  213,   -2 }, /* (144) where_opt ::= WHERE expr */
  {  160,   -8 }, /* (145) cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt */
  {  233,   -5 }, /* (146) setlist ::= setlist COMMA nm EQ expr */
  {  233,   -7 }, /* (147) setlist ::= setlist COMMA LP idlist RP EQ expr */
  {  233,   -3 }, /* (148) setlist ::= nm EQ expr */
  {  233,   -5 }, /* (149) setlist ::= LP idlist RP EQ expr */
  {  160,   -7 }, /* (150) cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert */
  {  160,   -7 }, /* (151) cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES */
  {  236,    0 }, /* (152) upsert ::= */
................................................................................
        break;
      case 140: /* limit_opt ::= LIMIT expr OFFSET expr */
{yymsp[-3].minor.yy18 = sqlite3PExpr(pParse,TK_LIMIT,yymsp[-2].minor.yy18,yymsp[0].minor.yy18);}
        break;
      case 141: /* limit_opt ::= LIMIT expr COMMA expr */
{yymsp[-3].minor.yy18 = sqlite3PExpr(pParse,TK_LIMIT,yymsp[0].minor.yy18,yymsp[-2].minor.yy18);}
        break;
      case 142: /* cmd ::= with DELETE FROM xfullname indexed_opt where_opt */
{
  sqlite3SrcListIndexedBy(pParse, yymsp[-2].minor.yy135, &yymsp[-1].minor.yy0);
  sqlite3DeleteFrom(pParse,yymsp[-2].minor.yy135,yymsp[0].minor.yy18,0,0);
}
        break;
      case 145: /* cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt */
{
  sqlite3SrcListIndexedBy(pParse, yymsp[-4].minor.yy135, &yymsp[-3].minor.yy0);
  sqlite3ExprListCheckLength(pParse,yymsp[-1].minor.yy420,"set list"); 
  sqlite3Update(pParse,yymsp[-4].minor.yy135,yymsp[-1].minor.yy420,yymsp[0].minor.yy18,yymsp[-5].minor.yy70,0,0,0);
}
        break;
      case 146: /* setlist ::= setlist COMMA nm EQ expr */
{
  yymsp[-4].minor.yy420 = sqlite3ExprListAppend(pParse, yymsp[-4].minor.yy420, yymsp[0].minor.yy18);
  sqlite3ExprListSetName(pParse, yymsp[-4].minor.yy420, &yymsp[-2].minor.yy0, 1);
}
................................................................................
    }
  }
  while( IdChar(z[i]) ){ i++; }
  *tokenType = TK_ID;
  return i;
}




































































/*
** Run the parser on the given SQL string.  The parser structure is
** passed in.  An SQLITE_ status code is returned.  If an error occurs
** then an and attempt is made to write an error message into 
** memory obtained from sqlite3_malloc() and to make *pzErrMsg point to that
** error message.
*/
................................................................................
        { SQLITE_DBCONFIG_ENABLE_TRIGGER,        SQLITE_EnableTrigger  },
        { SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, SQLITE_Fts3Tokenizer  },
        { SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, SQLITE_LoadExtension  },
        { SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE,      SQLITE_NoCkptOnClose  },
        { SQLITE_DBCONFIG_ENABLE_QPSG,           SQLITE_EnableQPSG     },
        { SQLITE_DBCONFIG_TRIGGER_EQP,           SQLITE_TriggerEQP     },
        { SQLITE_DBCONFIG_RESET_DATABASE,        SQLITE_ResetDatabase  },

      };
      unsigned int i;
      rc = SQLITE_ERROR; /* IMP: R-42790-23372 */
      for(i=0; i<ArraySize(aFlagOp); i++){
        if( aFlagOp[i].op==op ){
          int onoff = va_arg(ap, int);
          int *pRes = va_arg(ap, int*);
................................................................................
    }
  }
  sqlite3_mutex_enter(db->mutex);
  db->errMask = 0xff;
  db->nDb = 2;
  db->magic = SQLITE_MAGIC_BUSY;
  db->aDb = db->aDbStatic;


  assert( sizeof(db->aLimit)==sizeof(aHardLimit) );
  memcpy(db->aLimit, aHardLimit, sizeof(db->aLimit));
  db->aLimit[SQLITE_LIMIT_WORKER_THREADS] = SQLITE_DEFAULT_WORKER_THREADS;
  db->autoCommit = 1;
  db->nextAutovac = -1;
  db->szMmap = sqlite3GlobalConfig.szMmap;
................................................................................
                 | SQLITE_CellSizeCk
#endif
#if defined(SQLITE_ENABLE_FTS3_TOKENIZER)
                 | SQLITE_Fts3Tokenizer
#endif
#if defined(SQLITE_ENABLE_QPSG)
                 | SQLITE_EnableQPSG



#endif
      ;
  sqlite3HashInit(&db->aCollSeq);
#ifndef SQLITE_OMIT_VIRTUALTABLE
  sqlite3HashInit(&db->aModule);
#endif

................................................................................
  sqlite3_int64 *piFirst,         /* OUT: Selected child node */
  sqlite3_int64 *piLast           /* OUT: Selected child node */
){
  int rc = SQLITE_OK;             /* Return code */
  const char *zCsr = zNode;       /* Cursor to iterate through node */
  const char *zEnd = &zCsr[nNode];/* End of interior node buffer */
  char *zBuffer = 0;              /* Buffer to load terms into */
  int nAlloc = 0;                 /* Size of allocated buffer */
  int isFirstTerm = 1;            /* True when processing first term on page */
  sqlite3_int64 iChild;           /* Block id of child node to descend to */

  /* Skip over the 'height' varint that occurs at the start of every 
  ** interior node. Then load the blockid of the left-child of the b-tree
  ** node into variable iChild.  
  **
................................................................................
    if( !isFirstTerm ){
      zCsr += fts3GetVarint32(zCsr, &nPrefix);
    }
    isFirstTerm = 0;
    zCsr += fts3GetVarint32(zCsr, &nSuffix);
    
    assert( nPrefix>=0 && nSuffix>=0 );
    if( &zCsr[nSuffix]>zEnd ){
      rc = FTS_CORRUPT_VTAB;
      goto finish_scan;
    }
    if( nPrefix+nSuffix>nAlloc ){
      char *zNew;
      nAlloc = (nPrefix+nSuffix) * 2;
      zNew = (char *)sqlite3_realloc(zBuffer, nAlloc);
      if( !zNew ){
        rc = SQLITE_NOMEM;
        goto finish_scan;
      }
      zBuffer = zNew;
    }
    assert( zBuffer );
................................................................................
  UNUSED_PARAMETER(iSavepoint);
  assert( p->inTransaction );
  assert( p->mxSavepoint >= iSavepoint );
  TESTONLY( p->mxSavepoint = iSavepoint );
  sqlite3Fts3PendingTermsClear(p);
  return SQLITE_OK;
}
















static const sqlite3_module fts3Module = {
  /* iVersion      */ 2,
  /* xCreate       */ fts3CreateMethod,
  /* xConnect      */ fts3ConnectMethod,
  /* xBestIndex    */ fts3BestIndexMethod,
  /* xDisconnect   */ fts3DisconnectMethod,
  /* xDestroy      */ fts3DestroyMethod,
  /* xOpen         */ fts3OpenMethod,
  /* xClose        */ fts3CloseMethod,
................................................................................
  /* xCommit       */ fts3CommitMethod,
  /* xRollback     */ fts3RollbackMethod,
  /* xFindFunction */ fts3FindFunctionMethod,
  /* xRename */       fts3RenameMethod,
  /* xSavepoint    */ fts3SavepointMethod,
  /* xRelease      */ fts3ReleaseMethod,
  /* xRollbackTo   */ fts3RollbackToMethod,

};

/*
** This function is registered as the module destructor (called when an
** FTS3 enabled database connection is closed). It frees the memory
** allocated for the tokenizer hash table.
*/
................................................................................
     0,                           /* xSync         */
     0,                           /* xCommit       */
     0,                           /* xRollback     */
     0,                           /* xFindFunction */
     0,                           /* xRename       */
     0,                           /* xSavepoint    */
     0,                           /* xRelease      */
     0                            /* xRollbackTo   */

  };
  int rc;                         /* Return code */

  rc = sqlite3_create_module(db, "fts4aux", &fts3aux_module, 0);
  return rc;
}

................................................................................
     0,                           /* xSync         */
     0,                           /* xCommit       */
     0,                           /* xRollback     */
     0,                           /* xFindFunction */
     0,                           /* xRename       */
     0,                           /* xSavepoint    */
     0,                           /* xRelease      */
     0                            /* xRollbackTo   */

  };
  int rc;                         /* Return code */

  rc = sqlite3_create_module(db, "fts3tokenize", &fts3tok_module, (void*)pHash);
  return rc;
}

................................................................................
  rc = fts3SegReaderRequire(pReader, pNext, FTS3_VARINT_MAX*2);
  if( rc!=SQLITE_OK ) return rc;
  
  /* Because of the FTS3_NODE_PADDING bytes of padding, the following is 
  ** safe (no risk of overread) even if the node data is corrupted. */
  pNext += fts3GetVarint32(pNext, &nPrefix);
  pNext += fts3GetVarint32(pNext, &nSuffix);
  if( nPrefix<0 || nSuffix<=0 
   || &pNext[nSuffix]>&pReader->aNode[pReader->nNode] 

  ){
    return FTS_CORRUPT_VTAB;
  }




  if( nPrefix+nSuffix>pReader->nTermAlloc ){
    int nNew = (nPrefix+nSuffix)*2;
    char *zNew = sqlite3_realloc(pReader->zTerm, nNew);
    if( !zNew ){
      return SQLITE_NOMEM;
    }
    pReader->zTerm = zNew;
    pReader->nTermAlloc = nNew;
  }

................................................................................
  pReader->aDoclist = pNext;
  pReader->pOffsetList = 0;

  /* Check that the doclist does not appear to extend past the end of the
  ** b-tree node. And that the final byte of the doclist is 0x00. If either 
  ** of these statements is untrue, then the data structure is corrupt.
  */
  if( &pReader->aDoclist[pReader->nDoclist]>&pReader->aNode[pReader->nNode] 
   || (pReader->nPopulate==0 && pReader->aDoclist[pReader->nDoclist-1])
  ){
    return FTS_CORRUPT_VTAB;
  }
  return SQLITE_OK;
}

................................................................................
    p->aNode = 0;
  }else{
    if( bFirst==0 ){
      p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nPrefix);
    }
    p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nSuffix);




    blobGrowBuffer(&p->term, nPrefix+nSuffix, &rc);
    if( rc==SQLITE_OK ){
      memcpy(&p->term.a[nPrefix], &p->aNode[p->iOff], nSuffix);
      p->term.n = nPrefix+nSuffix;
      p->iOff += nSuffix;
      if( p->iChild==0 ){
        p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &p->nDoclist);



        p->aDoclist = &p->aNode[p->iOff];
        p->iOff += p->nDoclist;
      }
    }
  }

  assert( p->iOff<=p->nNode );

  return rc;
}

/*
** Release all dynamic resources held by node-reader object *p.
*/
static void nodeReaderRelease(NodeReader *p){
................................................................................
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0                          /* xRollbackTo */

};

/* The methods of the json_tree virtual table. */
static sqlite3_module jsonTreeModule = {
  0,                         /* iVersion */
  0,                         /* xCreate */
  jsonEachConnect,           /* xConnect */
................................................................................
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0                          /* xRollbackTo */

};
#endif /* SQLITE_OMIT_VIRTUALTABLE */

/****************************************************************************
** The following routines are the only publically visible identifiers in this
** file.  Call the following routines in order to register the various SQL
** functions and the virtual table implemented by this file.
................................................................................
    }
    sqlite3_free(zSql);
  }

  return rc;
}

















static sqlite3_module rtreeModule = {
  2,                          /* iVersion */
  rtreeCreate,                /* xCreate - create a table */
  rtreeConnect,               /* xConnect - connect to an existing table */
  rtreeBestIndex,             /* xBestIndex - Determine search strategy */
  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
  rtreeDestroy,               /* xDestroy - Drop a table */
  rtreeOpen,                  /* xOpen - open a cursor */
  rtreeClose,                 /* xClose - close a cursor */
................................................................................
  rtreeEndTransaction,        /* xCommit - commit transaction */
  rtreeEndTransaction,        /* xRollback - rollback transaction */
  0,                          /* xFindFunction - function overloading */
  rtreeRename,                /* xRename - rename the table */
  rtreeSavepoint,             /* xSavepoint */
  0,                          /* xRelease */
  0,                          /* xRollbackTo */

};

static int rtreeSqlInit(
  Rtree *pRtree, 
  sqlite3 *db, 
  const char *zDb, 
  const char *zPrefix, 
................................................................................
** each segment is "outside" and the area to the left is "inside".
**
** The on-disk representation consists of a 4-byte header followed by
** the values.  The 4-byte header is:
**
**      encoding    (1 byte)   0=big-endian, 1=little-endian
**      nvertex     (3 bytes)  Number of vertexes as a big-endian integer





*/
typedef struct GeoPoly GeoPoly;
struct GeoPoly {
  int nVertex;          /* Number of vertexes */
  unsigned char hdr[4]; /* Header for on-disk representation */
  GeoCoord a[2];    /* 2*nVertex values. X (longitude) first, then Y */
};






/*
** State of a parse of a GeoJSON input.
*/
typedef struct GeoParse GeoParse;
struct GeoParse {
  const unsigned char *z;   /* Unparsed input */
................................................................................
  t = a[1];
  a[1] = a[2];
  a[2] = t;
}

/* Skip whitespace.  Return the next non-whitespace character. */
static char geopolySkipSpace(GeoParse *p){
  while( p->z[0] && safe_isspace(p->z[0]) ) p->z++;
  return p->z[0];
}

/* Parse out a number.  Write the value into *pVal if pVal!=0.
** return non-zero on success and zero if the next token is not a number.
*/
static int geopolyParseNumber(GeoParse *p, GeoCoord *pVal){
................................................................................
  if( c=='-' ){
    j = 1;
    c = z[j];
  }
  if( c=='0' && z[j+1]>='0' && z[j+1]<='9' ) return 0;
  for(;; j++){
    c = z[j];
    if( c>='0' && c<='9' ) continue;
    if( c=='.' ){
      if( z[j-1]=='-' ) return 0;
      if( seenDP ) return 0;
      seenDP = 1;
      continue;
    }
    if( c=='e' || c=='E' ){
................................................................................
      }
      if( c<'0' || c>'9' ) return 0;
      continue;
    }
    break;
  }
  if( z[j-1]<'0' ) return 0;








  if( pVal ) *pVal = (GeoCoord)atof((const char*)p->z);


  p->z += j;
  return 1;
}

/*
** If the input is a well-formed JSON array of coordinates with at least
** four coordinates and where each coordinate is itself a two-value array,
................................................................................
    }
    if( geopolySkipSpace(&s)==']'
     && s.nVertex>=4
     && s.a[0]==s.a[s.nVertex*2-2]
     && s.a[1]==s.a[s.nVertex*2-1]
     && (s.z++, geopolySkipSpace(&s)==0)
    ){
      int nByte;
      GeoPoly *pOut;
      int x = 1;
      s.nVertex--;  /* Remove the redundant vertex at the end */
      nByte = sizeof(GeoPoly) * s.nVertex*2*sizeof(GeoCoord);
      pOut = sqlite3_malloc64( nByte );
      x = 1;
      if( pOut==0 ) goto parse_json_err;
      pOut->nVertex = s.nVertex;
      memcpy(pOut->a, s.a, s.nVertex*2*sizeof(GeoCoord));
      pOut->hdr[0] = *(unsigned char*)&x;
      pOut->hdr[1] = (s.nVertex>>16)&0xff;
      pOut->hdr[2] = (s.nVertex>>8)&0xff;
................................................................................
      p->a[ii*2+1] = y1;
    }
    sqlite3_result_blob(context, p->hdr, 
       4+8*p->nVertex, SQLITE_TRANSIENT);
    sqlite3_free(p);
  }
}






















/*
** Implementation of the geopoly_area(X) function.
**
** If the input is a well-formed Geopoly BLOB then return the area
** enclosed by the polygon.  If the polygon circulates clockwise instead
** of counterclockwise (as it should) then return the negative of the
................................................................................
static void geopolyAreaFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
  if( p ){
    double rArea = 0.0;

























    int ii;
    for(ii=0; ii<p->nVertex-1; ii++){
      rArea += (p->a[ii*2] - p->a[ii*2+2])           /* (x0 - x1) */
                * (p->a[ii*2+1] + p->a[ii*2+3])      /* (y0 + y1) */
                * 0.5;







    }
    rArea += (p->a[ii*2] - p->a[0])                  /* (xN - x0) */
             * (p->a[ii*2+1] + p->a[1])              /* (yN + y0) */
             * 0.5;

    sqlite3_result_double(context, rArea);

    sqlite3_free(p);
  }            
}



























































/*
** If pPoly is a polygon, compute its bounding box. Then:
**
**    (1) if aCoord!=0 store the bounding box in aCoord, returning NULL
**    (2) otherwise, compute a GeoPoly for the bounding box and return the
**        new GeoPoly
................................................................................
      r = p->a[ii*2+1];
      if( r<mnY ) mnY = (float)r;
      else if( r>mxY ) mxY = (float)r;
    }
    if( pRc ) *pRc = SQLITE_OK;
    if( aCoord==0 ){
      geopolyBboxFill:
      pOut = sqlite3_realloc(p, sizeof(GeoPoly)+sizeof(GeoCoord)*6);
      if( pOut==0 ){
        sqlite3_free(p);
        if( context ) sqlite3_result_error_nomem(context);
        if( pRc ) *pRc = SQLITE_NOMEM;
        return 0;
      }
      pOut->nVertex = 4;
................................................................................
    int jj;
    int nChange = 0;
    sqlite3_bind_int64(pUp, 1, cell.iRowid);
    assert( pRtree->nAux>=1 );
    if( sqlite3_value_nochange(aData[2]) ){
      sqlite3_bind_null(pUp, 2);
    }else{







      sqlite3_bind_value(pUp, 2, aData[2]);


      nChange = 1;
    }
    for(jj=1; jj<pRtree->nAux; jj++){
      nChange++;
      sqlite3_bind_value(pUp, jj+2, aData[jj+2]);
    }
    if( nChange ){
................................................................................
    return SQLITE_INDEX_CONSTRAINT_FUNCTION+1;
  }
  return 0;
}


static sqlite3_module geopolyModule = {
  2,                          /* iVersion */
  geopolyCreate,              /* xCreate - create a table */
  geopolyConnect,             /* xConnect - connect to an existing table */
  geopolyBestIndex,           /* xBestIndex - Determine search strategy */
  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
  rtreeDestroy,               /* xDestroy - Drop a table */
  rtreeOpen,                  /* xOpen - open a cursor */
  rtreeClose,                 /* xClose - close a cursor */
................................................................................
  rtreeEndTransaction,        /* xCommit - commit transaction */
  rtreeEndTransaction,        /* xRollback - rollback transaction */
  geopolyFindFunction,        /* xFindFunction - function overloading */
  rtreeRename,                /* xRename - rename the table */
  rtreeSavepoint,             /* xSavepoint */
  0,                          /* xRelease */
  0,                          /* xRollbackTo */

};

static int sqlite3_geopoly_init(sqlite3 *db){
  int rc = SQLITE_OK;
  static const struct {
    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
    int nArg;

    const char *zName;
  } aFunc[] = {
     { geopolyAreaFunc,          1,    "geopoly_area"             },
     { geopolyBlobFunc,          1,    "geopoly_blob"             },
     { geopolyJsonFunc,          1,    "geopoly_json"             },
     { geopolySvgFunc,          -1,    "geopoly_svg"              },
     { geopolyWithinFunc,        2,    "geopoly_within"           },
     { geopolyContainsPointFunc, 3,    "geopoly_contains_point"   },
     { geopolyOverlapFunc,       2,    "geopoly_overlap"          },
     { geopolyDebugFunc,         1,    "geopoly_debug"            },
     { geopolyBBoxFunc,          1,    "geopoly_bbox"             },
     { geopolyXformFunc,         7,    "geopoly_xform"            },


  };
  static const struct {
    void (*xStep)(sqlite3_context*,int,sqlite3_value**);
    void (*xFinal)(sqlite3_context*);
    const char *zName;
  } aAgg[] = {
     { geopolyBBoxStep, geopolyBBoxFinal, "geopoly_group_bbox"    },
  };
  int i;
  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){

    rc = sqlite3_create_function(db, aFunc[i].zName, aFunc[i].nArg,
                                 SQLITE_UTF8, 0,
                                 aFunc[i].xFunc, 0, 0);
  }
  for(i=0; i<sizeof(aAgg)/sizeof(aAgg[0]) && rc==SQLITE_OK; i++){
    rc = sqlite3_create_function(db, aAgg[i].zName, 1, SQLITE_UTF8, 0,
                                 0, aAgg[i].xStep, aAgg[i].xFinal);
  }
  if( rc==SQLITE_OK ){
................................................................................
** space used by the RBU handle.
*/
struct rbu_vfs {
  sqlite3_vfs base;               /* rbu VFS shim methods */
  sqlite3_vfs *pRealVfs;          /* Underlying VFS */
  sqlite3_mutex *mutex;           /* Mutex to protect pMain */
  sqlite3rbu *pRbu;               /* Owner RBU object */
  rbu_file *pMain;                /* Linked list of main db files */

};

/*
** Each file opened by an rbu VFS is represented by an instance of
** the following structure.
**
** If this is a temporary file (pRbu!=0 && flags&DELETE_ON_CLOSE), variable
................................................................................
  int nShm;                       /* Number of entries in apShm[] array */
  char **apShm;                   /* Array of mmap'd *-shm regions */
  char *zDel;                     /* Delete this when closing file */

  const char *zWal;               /* Wal filename for this main db file */
  rbu_file *pWalFd;               /* Wal file descriptor for this main db */
  rbu_file *pMainNext;            /* Next MAIN_DB file */

};

/*
** True for an RBU vacuum handle, or false otherwise.
*/
#define rbuIsVacuum(p) ((p)->zTarget==0)

................................................................................
  i64 nDiff = nNew - pFd->sz;
  pRbu->szTemp += nDiff;
  pFd->sz = nNew;
  assert( pRbu->szTemp>=0 );
  if( pRbu->szTempLimit && pRbu->szTemp>pRbu->szTempLimit ) return SQLITE_FULL;
  return SQLITE_OK;
}
































































/*
** Close an rbu file.
*/
static int rbuVfsClose(sqlite3_file *pFile){
  rbu_file *p = (rbu_file*)pFile;
  int rc;
................................................................................
    sqlite3_free(p->apShm[i]);
  }
  sqlite3_free(p->apShm);
  p->apShm = 0;
  sqlite3_free(p->zDel);

  if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
    rbu_file **pp;
    sqlite3_mutex_enter(p->pRbuVfs->mutex);
    for(pp=&p->pRbuVfs->pMain; *pp!=p; pp=&((*pp)->pMainNext));
    *pp = p->pMainNext;
    sqlite3_mutex_leave(p->pRbuVfs->mutex);
    rbuUnlockShm(p);
    p->pReal->pMethods->xShmUnmap(p->pReal, 0);
  }
  else if( (p->openFlags & SQLITE_OPEN_DELETEONCLOSE) && p->pRbu ){
    rbuUpdateTempSize(p, 0);
  }


  /* Close the underlying file handle */
  rc = p->pReal->pMethods->xClose(p->pReal);
  return rc;
}


................................................................................
      rc = xControl(p->pReal, SQLITE_FCNTL_ZIPVFS, &dummy);
      if( rc==SQLITE_OK ){
        rc = SQLITE_ERROR;
        pRbu->zErrmsg = sqlite3_mprintf("rbu/zipvfs setup error");
      }else if( rc==SQLITE_NOTFOUND ){
        pRbu->pTargetFd = p;
        p->pRbu = pRbu;



        if( p->pWalFd ) p->pWalFd->pRbu = pRbu;
        rc = SQLITE_OK;
      }
    }
    return rc;
  }
  else if( op==SQLITE_FCNTL_RBUCNT ){
................................................................................
    /* Release the checkpointer and writer locks */
    rbuUnlockShm(p);
    rc = p->pReal->pMethods->xShmUnmap(p->pReal, delFlag);
  }
  return rc;
}

/*
** Given that zWal points to a buffer containing a wal file name passed to 
** either the xOpen() or xAccess() VFS method, return a pointer to the
** file-handle opened by the same database connection on the corresponding
** database file.
*/
static rbu_file *rbuFindMaindb(rbu_vfs *pRbuVfs, const char *zWal){
  rbu_file *pDb;
  sqlite3_mutex_enter(pRbuVfs->mutex);
  for(pDb=pRbuVfs->pMain; pDb && pDb->zWal!=zWal; pDb=pDb->pMainNext){}
  sqlite3_mutex_leave(pRbuVfs->mutex);
  return pDb;
}

/* 
** A main database named zName has just been opened. The following 
** function returns a pointer to a buffer owned by SQLite that contains
** the name of the *-wal file this db connection will use. SQLite
** happens to pass a pointer to this buffer when using xAccess()
** or xOpen() to operate on the *-wal file.  
*/
................................................................................
      ** (pFd->zWal) to point to a buffer owned by SQLite that contains
      ** the name of the *-wal file this db connection will use. SQLite
      ** happens to pass a pointer to this buffer when using xAccess()
      ** or xOpen() to operate on the *-wal file.  */
      pFd->zWal = rbuMainToWal(zName, flags);
    }
    else if( flags & SQLITE_OPEN_WAL ){
      rbu_file *pDb = rbuFindMaindb(pRbuVfs, zName);
      if( pDb ){
        if( pDb->pRbu && pDb->pRbu->eStage==RBU_STAGE_OAL ){
          /* This call is to open a *-wal file. Intead, open the *-oal. This
          ** code ensures that the string passed to xOpen() is terminated by a
          ** pair of '\0' bytes in case the VFS attempts to extract a URI 
          ** parameter from it.  */
          const char *zBase = zName;
................................................................................
  }
  if( pFd->pReal->pMethods ){
    /* The xOpen() operation has succeeded. Set the sqlite3_file.pMethods
    ** pointer and, if the file is a main database file, link it into the
    ** mutex protected linked list of all such files.  */
    pFile->pMethods = &rbuvfs_io_methods;
    if( flags & SQLITE_OPEN_MAIN_DB ){
      sqlite3_mutex_enter(pRbuVfs->mutex);
      pFd->pMainNext = pRbuVfs->pMain;
      pRbuVfs->pMain = pFd;
      sqlite3_mutex_leave(pRbuVfs->mutex);
    }
  }else{
    sqlite3_free(pFd->zDel);
  }

  return rc;
}
................................................................................
  **
  **   b) if the *-wal file does not exist, claim that it does anyway,
  **      causing SQLite to call xOpen() to open it. This call will also
  **      be intercepted (see the rbuVfsOpen() function) and the *-oal
  **      file opened instead.
  */
  if( rc==SQLITE_OK && flags==SQLITE_ACCESS_EXISTS ){
    rbu_file *pDb = rbuFindMaindb(pRbuVfs, zPath);
    if( pDb && pDb->pRbu && pDb->pRbu->eStage==RBU_STAGE_OAL ){
      if( *pResOut ){
        rc = SQLITE_CANTOPEN;
      }else{
        sqlite3_int64 sz = 0;
        rc = rbuVfsFileSize(&pDb->base, &sz);
        *pResOut = (sz>0);
................................................................................
    pCsr->iDb = pTab->iDb;
  }

  *ppCursor = (sqlite3_vtab_cursor *)pCsr;
  return SQLITE_OK;
}

static void statClearPage(StatPage *p){
  int i;
  if( p->aCell ){
    for(i=0; i<p->nCell; i++){
      sqlite3_free(p->aCell[i].aOvfl);
    }
    sqlite3_free(p->aCell);
  }






  sqlite3PagerUnref(p->pPg);
  sqlite3_free(p->zPath);
  memset(p, 0, sizeof(StatPage));
}

static void statResetCsr(StatCursor *pCsr){
  int i;
................................................................................
  int isLeaf;
  int szPage;

  u8 *aData = sqlite3PagerGetData(p->pPg);
  u8 *aHdr = &aData[p->iPgno==1 ? 100 : 0];

  p->flags = aHdr[0];










  p->nCell = get2byte(&aHdr[3]);
  p->nMxPayload = 0;

  isLeaf = (p->flags==0x0A || p->flags==0x0D);
  nHdr = 12 - isLeaf*4 + (p->iPgno==1)*100;


  nUnused = get2byte(&aHdr[5]) - nHdr - 2*p->nCell;
  nUnused += (int)aHdr[7];
  iOff = get2byte(&aHdr[1]);
  while( iOff ){


    nUnused += get2byte(&aData[iOff+2]);
    iOff = get2byte(&aData[iOff]);


  }
  p->nUnused = nUnused;
  p->iRightChildPg = isLeaf ? 0 : sqlite3Get4byte(&aHdr[8]);
  szPage = sqlite3BtreeGetPageSize(pBt);

  if( p->nCell ){
    int i;                        /* Used to iterate through cells */
    int nUsable;                  /* Usable bytes per page */

    sqlite3BtreeEnter(pBt);
    nUsable = szPage - sqlite3BtreeGetReserveNoMutex(pBt);
................................................................................
    if( p->aCell==0 ) return SQLITE_NOMEM_BKPT;
    memset(p->aCell, 0, (p->nCell+1) * sizeof(StatCell));

    for(i=0; i<p->nCell; i++){
      StatCell *pCell = &p->aCell[i];

      iOff = get2byte(&aData[nHdr+i*2]);

      if( !isLeaf ){
        pCell->iChildPg = sqlite3Get4byte(&aData[iOff]);
        iOff += 4;
      }
      if( p->flags==0x05 ){
        /* A table interior node. nPayload==0. */
      }else{
................................................................................
        iOff += getVarint32(&aData[iOff], nPayload);
        if( p->flags==0x0D ){
          u64 dummy;
          iOff += sqlite3GetVarint(&aData[iOff], &dummy);
        }
        if( nPayload>(u32)p->nMxPayload ) p->nMxPayload = nPayload;
        getLocalPayload(nUsable, p->flags, nPayload, &nLocal);

        pCell->nLocal = nLocal;
        assert( nLocal>=0 );
        assert( nPayload>=(u32)nLocal );
        assert( nLocal<=(nUsable-35) );
        if( nPayload>(u32)nLocal ){
          int j;
          int nOvfl = ((nPayload - nLocal) + nUsable-4 - 1) / (nUsable - 4);
          pCell->nLastOvfl = (nPayload-nLocal) - (nOvfl-1) * (nUsable-4);
          pCell->nOvfl = nOvfl;
................................................................................
          }
        }
      }
    }
  }

  return SQLITE_OK;





}

/*
** Populate the pCsr->iOffset and pCsr->szPage member variables. Based on
** the current value of pCsr->iPageno.
*/
static void statSizeAndOffset(StatCursor *pCsr){
................................................................................
    0,                            /* xCommit */
    0,                            /* xRollback */
    0,                            /* xFindMethod */
    0,                            /* xRename */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0,                            /* xRollbackTo */

  };
  return sqlite3_create_module(db, "dbstat", &dbstat_module, 0);
}
#elif defined(SQLITE_ENABLE_DBSTAT_VTAB)
SQLITE_PRIVATE int sqlite3DbstatRegister(sqlite3 *db){ return SQLITE_OK; }
#endif /* SQLITE_ENABLE_DBSTAT_VTAB */

................................................................................
  char *zErr = 0;
  const char *zSchema;
  int iDb;
  Btree *pBt;
  Pager *pPager;
  int szPage;





  if( argc==1 ){
    zErr = "cannot delete";
    goto update_fail;
  }
  pgno = sqlite3_value_int(argv[0]);
  if( (Pgno)sqlite3_value_int(argv[1])!=pgno ){
    zErr = "cannot insert";
................................................................................
    0,                            /* xCommit */
    0,                            /* xRollback */
    0,                            /* xFindMethod */
    0,                            /* xRename */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0,                            /* xRollbackTo */

  };
  return sqlite3_create_module(db, "sqlite_dbpage", &dbpage_module, 0);
}
#elif defined(SQLITE_ENABLE_DBPAGE_VTAB)
SQLITE_PRIVATE int sqlite3DbpageRegister(sqlite3 *db){ return SQLITE_OK; }
#endif /* SQLITE_ENABLE_DBSTAT_VTAB */

................................................................................
#ifndef SESSIONS_STRM_CHUNK_SIZE
# ifdef SQLITE_TEST
#   define SESSIONS_STRM_CHUNK_SIZE 64
# else
#   define SESSIONS_STRM_CHUNK_SIZE 1024
# endif
#endif



typedef struct SessionHook SessionHook;
struct SessionHook {
  void *pCtx;
  int (*xOld)(void*,int,sqlite3_value**);
  int (*xNew)(void*,int,sqlite3_value**);
  int (*xCount)(void*);
................................................................................
/*
** Structure for changeset iterators.
*/
struct sqlite3_changeset_iter {
  SessionInput in;                /* Input buffer or stream */
  SessionBuffer tblhdr;           /* Buffer to hold apValue/zTab/abPK/ */
  int bPatchset;                  /* True if this is a patchset */

  int rc;                         /* Iterator error code */
  sqlite3_stmt *pConflict;        /* Points to conflicting row, if any */
  char *zTab;                     /* Current table */
  int nCol;                       /* Number of columns in zTab */
  int op;                         /* Current operation */
  int bIndirect;                  /* True if current change was indirect */
  u8 *abPK;                       /* Primary key array */
................................................................................
** columns and columns that are modified by the UPDATE are set to "undefined".
** PRIMARY KEY fields contain the values identifying the table row to update,
** and fields associated with modified columns contain the new column values.
**
** The records associated with INSERT changes are in the same format as for
** changesets. It is not possible for a record associated with an INSERT
** change to contain a field set to "undefined".




































*/

/*
** For each row modified during a session, there exists a single instance of
** this structure stored in a SessionTable.aChange[] hash table.
*/
struct SessionChange {
................................................................................
**
** If successful, return zero. Otherwise, if an OOM condition is encountered,
** set *pRc to SQLITE_NOMEM and return non-zero.
*/
static int sessionBufferGrow(SessionBuffer *p, int nByte, int *pRc){
  if( *pRc==SQLITE_OK && p->nAlloc-p->nBuf<nByte ){
    u8 *aNew;
    int nNew = p->nAlloc ? p->nAlloc : 128;
    do {
      nNew = nNew*2;
    }while( nNew<(p->nBuf+nByte) );

    aNew = (u8 *)sqlite3_realloc(p->aBuf, nNew);
    if( 0==aNew ){
      *pRc = SQLITE_NOMEM;
    }else{
      p->aBuf = aNew;
      p->nAlloc = nNew;
    }
  }
................................................................................
          }else if( p->op!=SQLITE_INSERT ){
            rc = sessionAppendDelete(&buf, bPatchset, p, nCol, abPK);
          }
          if( rc==SQLITE_OK ){
            rc = sqlite3_reset(pSel);
          }

          /* If the buffer is now larger than SESSIONS_STRM_CHUNK_SIZE, pass
          ** its contents to the xOutput() callback. */
          if( xOutput 
           && rc==SQLITE_OK 
           && buf.nBuf>nNoop 
           && buf.nBuf>SESSIONS_STRM_CHUNK_SIZE 
          ){
            rc = xOutput(pOut, (void*)buf.aBuf, buf.nBuf);
            nNoop = -1;
            buf.nBuf = 0;
          }

        }
................................................................................
** Do the work for either sqlite3changeset_start() or start_strm().
*/
static int sessionChangesetStart(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int nChangeset,                 /* Size of buffer pChangeset in bytes */
  void *pChangeset                /* Pointer to buffer containing changeset */

){
  sqlite3_changeset_iter *pRet;   /* Iterator to return */
  int nByte;                      /* Number of bytes to allocate for iterator */

  assert( xInput==0 || (pChangeset==0 && nChangeset==0) );

  /* Zero the output variable in case an error occurs. */
................................................................................
  if( !pRet ) return SQLITE_NOMEM;
  memset(pRet, 0, sizeof(sqlite3_changeset_iter));
  pRet->in.aData = (u8 *)pChangeset;
  pRet->in.nData = nChangeset;
  pRet->in.xInput = xInput;
  pRet->in.pIn = pIn;
  pRet->in.bEof = (xInput ? 0 : 1);


  /* Populate the output variable and return success. */
  *pp = pRet;
  return SQLITE_OK;
}

/*
................................................................................
** Create an iterator used to iterate through the contents of a changeset.
*/
SQLITE_API int sqlite3changeset_start(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int nChangeset,                 /* Size of buffer pChangeset in bytes */
  void *pChangeset                /* Pointer to buffer containing changeset */
){
  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset);









}

/*
** Streaming version of sqlite3changeset_start().
*/
SQLITE_API int sqlite3changeset_start_strm(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn
){
  return sessionChangesetStart(pp, xInput, pIn, 0, 0);









}

/*
** If the SessionInput object passed as the only argument is a streaming
** object and the buffer is full, discard some data to free up space.
*/
static void sessionDiscardData(SessionInput *pIn){
  if( pIn->xInput && pIn->iNext>=SESSIONS_STRM_CHUNK_SIZE ){
    int nMove = pIn->buf.nBuf - pIn->iNext;
    assert( nMove>=0 );
    if( nMove>0 ){
      memmove(pIn->buf.aBuf, &pIn->buf.aBuf[pIn->iNext], nMove);
    }
    pIn->buf.nBuf -= pIn->iNext;
    pIn->iNext = 0;
................................................................................
**
** Return an SQLite error code if an error occurs, or SQLITE_OK otherwise.
*/
static int sessionInputBuffer(SessionInput *pIn, int nByte){
  int rc = SQLITE_OK;
  if( pIn->xInput ){
    while( !pIn->bEof && (pIn->iNext+nByte)>=pIn->nData && rc==SQLITE_OK ){
      int nNew = SESSIONS_STRM_CHUNK_SIZE;

      if( pIn->bNoDiscard==0 ) sessionDiscardData(pIn);
      if( SQLITE_OK==sessionBufferGrow(&pIn->buf, nNew, &rc) ){
        rc = pIn->xInput(pIn->pIn, &pIn->buf.aBuf[pIn->buf.nBuf], &nNew);
        if( nNew==0 ){
          pIn->bEof = 1;
        }else{
................................................................................
    if( sessionChangesetReadTblhdr(p) ) return p->rc;
    if( (p->rc = sessionInputBuffer(&p->in, 2)) ) return p->rc;
    p->in.iCurrent = p->in.iNext;
    if( p->in.iNext>=p->in.nData ) return SQLITE_DONE;
    op = p->in.aData[p->in.iNext++];
  }

  if( p->zTab==0 ){
    /* The first record in the changeset is not a table header. Must be a
    ** corrupt changeset. */
    assert( p->in.iNext==1 );
    return (p->rc = SQLITE_CORRUPT_BKPT);
  }

  p->op = op;
  p->bIndirect = p->in.aData[p->in.iNext++];
  if( p->op!=SQLITE_UPDATE && p->op!=SQLITE_DELETE && p->op!=SQLITE_INSERT ){
    return (p->rc = SQLITE_CORRUPT_BKPT);
................................................................................
      nVal = p->nCol;
    }
    p->rc = sessionChangesetBufferRecord(&p->in, nVal, pnRec);
    if( p->rc!=SQLITE_OK ) return p->rc;
    *paRec = &p->in.aData[p->in.iNext];
    p->in.iNext += *pnRec;
  }else{



    /* If this is an UPDATE or DELETE, read the old.* record. */
    if( p->op!=SQLITE_INSERT && (p->bPatchset==0 || p->op==SQLITE_DELETE) ){
      u8 *abPK = p->bPatchset ? p->abPK : 0;
      p->rc = sessionReadRecord(&p->in, p->nCol, abPK, p->apValue);
      if( p->rc!=SQLITE_OK ) return p->rc;
    }

    /* If this is an INSERT or UPDATE, read the new.* record. */
    if( p->op!=SQLITE_DELETE ){
      p->rc = sessionReadRecord(&p->in, p->nCol, 0, &p->apValue[p->nCol]);
      if( p->rc!=SQLITE_OK ) return p->rc;
    }

    if( p->bPatchset && p->op==SQLITE_UPDATE ){
      /* If this is an UPDATE that is part of a patchset, then all PK and
      ** modified fields are present in the new.* record. The old.* record
      ** is currently completely empty. This block shifts the PK fields from
      ** new.* to old.*, to accommodate the code that reads these arrays.  */
      for(i=0; i<p->nCol; i++){
        assert( p->apValue[i]==0 );
        if( p->abPK[i] ){

          p->apValue[i] = p->apValue[i+p->nCol];
          if( p->apValue[i]==0 ) return (p->rc = SQLITE_CORRUPT_BKPT);
          p->apValue[i+p->nCol] = 0;
        }
      }



    }
  }

  return SQLITE_ROW;
}

/*
................................................................................

      default:
        rc = SQLITE_CORRUPT_BKPT;
        goto finished_invert;
    }

    assert( rc==SQLITE_OK );
    if( xOutput && sOut.nBuf>=SESSIONS_STRM_CHUNK_SIZE ){
      rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
      sOut.nBuf = 0;
      if( rc!=SQLITE_OK ) goto finished_invert;
    }
  }

  assert( rc==SQLITE_OK );
................................................................................
  int nCol;                       /* Size of azCol[] and abPK[] arrays */
  const char **azCol;             /* Array of column names */
  u8 *abPK;                       /* Boolean array - true if column is in PK */
  int bStat1;                     /* True if table is sqlite_stat1 */
  int bDeferConstraints;          /* True to defer constraints */
  SessionBuffer constraints;      /* Deferred constraints are stored here */
  SessionBuffer rebase;           /* Rebase information (if any) here */
  int bRebaseStarted;             /* If table header is already in rebase */

};

/*
** Formulate a statement to DELETE a row from database db. Assuming a table
** structure like this:
**
**     CREATE TABLE x(a, b, c, d, PRIMARY KEY(a, c));
................................................................................
*/
static int sessionRebaseAdd(
  SessionApplyCtx *p,             /* Apply context */
  int eType,                      /* Conflict resolution (OMIT or REPLACE) */
  sqlite3_changeset_iter *pIter   /* Iterator pointing at current change */
){
  int rc = SQLITE_OK;

  int i;
  int eOp = pIter->op;
  if( p->bRebaseStarted==0 ){
    /* Append a table-header to the rebase buffer */
    const char *zTab = pIter->zTab;
    sessionAppendByte(&p->rebase, 'T', &rc);
    sessionAppendVarint(&p->rebase, p->nCol, &rc);
    sessionAppendBlob(&p->rebase, p->abPK, p->nCol, &rc);
    sessionAppendBlob(&p->rebase, (u8*)zTab, (int)strlen(zTab)+1, &rc);
    p->bRebaseStarted = 1;
  }

  assert( eType==SQLITE_CHANGESET_REPLACE||eType==SQLITE_CHANGESET_OMIT );
  assert( eOp==SQLITE_DELETE || eOp==SQLITE_INSERT || eOp==SQLITE_UPDATE );

  sessionAppendByte(&p->rebase, 
      (eOp==SQLITE_DELETE ? SQLITE_DELETE : SQLITE_INSERT), &rc
  );
  sessionAppendByte(&p->rebase, (eType==SQLITE_CHANGESET_REPLACE), &rc);
  for(i=0; i<p->nCol; i++){
    sqlite3_value *pVal = 0;
    if( eOp==SQLITE_DELETE || (eOp==SQLITE_UPDATE && p->abPK[i]) ){
      sqlite3changeset_old(pIter, i, &pVal);
    }else{
      sqlite3changeset_new(pIter, i, &pVal);
    }
    sessionAppendValue(&p->rebase, pVal, &rc);
  }

  return rc;
}

/*
** Invoke the conflict handler for the change that the changeset iterator
** currently points to.
**
................................................................................
  int rc = SQLITE_OK;

  while( pApply->constraints.nBuf ){
    sqlite3_changeset_iter *pIter2 = 0;
    SessionBuffer cons = pApply->constraints;
    memset(&pApply->constraints, 0, sizeof(SessionBuffer));

    rc = sessionChangesetStart(&pIter2, 0, 0, cons.nBuf, cons.aBuf);
    if( rc==SQLITE_OK ){
      int nByte = 2*pApply->nCol*sizeof(sqlite3_value*);
      int rc2;
      pIter2->bPatchset = bPatchset;
      pIter2->zTab = (char*)zTab;
      pIter2->nCol = pApply->nCol;
      pIter2->abPK = pApply->abPK;
................................................................................
  SessionApplyCtx sApply;         /* changeset_apply() context object */
  int bPatchset;

  assert( xConflict!=0 );

  pIter->in.bNoDiscard = 1;
  memset(&sApply, 0, sizeof(sApply));

  sqlite3_mutex_enter(sqlite3_db_mutex(db));
  if( (flags & SQLITE_CHANGESETAPPLY_NOSAVEPOINT)==0 ){
    rc = sqlite3_exec(db, "SAVEPOINT changeset_apply", 0, 0, 0);
  }
  if( rc==SQLITE_OK ){
    rc = sqlite3_exec(db, "PRAGMA defer_foreign_keys = 1", 0, 0, 0);
  }
................................................................................
      rc = sqlite3_exec(db, "RELEASE changeset_apply", 0, 0, 0);
    }else{
      sqlite3_exec(db, "ROLLBACK TO changeset_apply", 0, 0, 0);
      sqlite3_exec(db, "RELEASE changeset_apply", 0, 0, 0);
    }
  }


  if( rc==SQLITE_OK && bPatchset==0 && ppRebase && pnRebase ){
    *ppRebase = (void*)sApply.rebase.aBuf;
    *pnRebase = sApply.rebase.nBuf;
    sApply.rebase.aBuf = 0;
  }
  sqlite3_finalize(sApply.pInsert);
  sqlite3_finalize(sApply.pDelete);
  sqlite3_finalize(sApply.pUpdate);
................................................................................
    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
  ),
  void *pCtx,                     /* First argument passed to xConflict */
  void **ppRebase, int *pnRebase,
  int flags
){
  sqlite3_changeset_iter *pIter;  /* Iterator to skip through changeset */  
  int rc = sqlite3changeset_start(&pIter, nChangeset, pChangeset);

  if( rc==SQLITE_OK ){
    rc = sessionChangesetApply(
        db, pIter, xFilter, xConflict, pCtx, ppRebase, pnRebase, flags
    );
  }
  return rc;
}
................................................................................
    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
  ),
  void *pCtx,                     /* First argument passed to xConflict */
  void **ppRebase, int *pnRebase,
  int flags
){
  sqlite3_changeset_iter *pIter;  /* Iterator to skip through changeset */  
  int rc = sqlite3changeset_start_strm(&pIter, xInput, pIn);

  if( rc==SQLITE_OK ){
    rc = sessionChangesetApply(
        db, pIter, xFilter, xConflict, pCtx, ppRebase, pnRebase, flags
    );
  }
  return rc;
}
................................................................................
    sessionAppendTableHdr(&buf, pGrp->bPatch, pTab, &rc);
    for(i=0; i<pTab->nChange; i++){
      SessionChange *p;
      for(p=pTab->apChange[i]; p; p=p->pNext){
        sessionAppendByte(&buf, p->op, &rc);
        sessionAppendByte(&buf, p->bIndirect, &rc);
        sessionAppendBlob(&buf, p->aRecord, p->nRecord, &rc);
      }
    }

    if( rc==SQLITE_OK && xOutput && buf.nBuf>=SESSIONS_STRM_CHUNK_SIZE ){
      rc = xOutput(pOut, buf.aBuf, buf.nBuf);
      buf.nBuf = 0;
    }


  }

  if( rc==SQLITE_OK ){
    if( xOutput ){
      if( buf.nBuf>0 ) rc = xOutput(pOut, buf.aBuf, buf.nBuf);
    }else{
      *ppOut = buf.aBuf;
................................................................................
    }

    if( bDone==0 ){
      sessionAppendByte(&sOut, pIter->op, &rc);
      sessionAppendByte(&sOut, pIter->bIndirect, &rc);
      sessionAppendBlob(&sOut, aRec, nRec, &rc);
    }
    if( rc==SQLITE_OK && xOutput && sOut.nBuf>SESSIONS_STRM_CHUNK_SIZE ){
      rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
      sOut.nBuf = 0;
    }
    if( rc ) break;
  }

  if( rc!=SQLITE_OK ){
................................................................................
*/
SQLITE_API void sqlite3rebaser_delete(sqlite3_rebaser *p){
  if( p ){
    sessionDeleteTable(p->grp.pList);
    sqlite3_free(p);
  }
}






















#endif /* SQLITE_ENABLE_SESSION && SQLITE_ENABLE_PREUPDATE_HOOK */

/************** End of sqlite3session.c **************************************/
/************** Begin file fts5.c ********************************************/


................................................................................

    if( p->rc ){
      sqlite3Fts5IterClose((Fts5IndexIter*)pRet);
      pRet = 0;
      fts5CloseReader(p);
    }

    *ppIter = &pRet->base;
    sqlite3Fts5BufferFree(&buf);
  }
  return fts5IndexReturn(p);
}

/*
** Return true if the iterator passed as the only argument is at EOF.
................................................................................
static void fts5SourceIdFunc(
  sqlite3_context *pCtx,          /* Function call context */
  int nArg,                       /* Number of args */
  sqlite3_value **apUnused        /* Function arguments */
){
  assert( nArg==0 );
  UNUSED_PARAM2(nArg, apUnused);
  sqlite3_result_text(pCtx, "fts5: 2018-09-18 20:20:44 2ac9003de44da7dafa3fbb1915ac5725a9275c86bf2f3b7aa19321bf1460b386", -1, SQLITE_TRANSIENT);















}

static int fts5Init(sqlite3 *db){
  static const sqlite3_module fts5Mod = {
    /* iVersion      */ 2,
    /* xCreate       */ fts5CreateMethod,
    /* xConnect      */ fts5ConnectMethod,
    /* xBestIndex    */ fts5BestIndexMethod,
    /* xDisconnect   */ fts5DisconnectMethod,
    /* xDestroy      */ fts5DestroyMethod,
    /* xOpen         */ fts5OpenMethod,
    /* xClose        */ fts5CloseMethod,
................................................................................
    /* xCommit       */ fts5CommitMethod,
    /* xRollback     */ fts5RollbackMethod,
    /* xFindFunction */ fts5FindFunctionMethod,
    /* xRename       */ fts5RenameMethod,
    /* xSavepoint    */ fts5SavepointMethod,
    /* xRelease      */ fts5ReleaseMethod,
    /* xRollbackTo   */ fts5RollbackToMethod,

  };

  int rc;
  Fts5Global *pGlobal = 0;

  pGlobal = (Fts5Global*)sqlite3_malloc(sizeof(Fts5Global));
  if( pGlobal==0 ){
................................................................................
static int fts5VocabInstanceNext(Fts5VocabCursor *pCsr){
  int eDetail = pCsr->pConfig->eDetail;
  int rc = SQLITE_OK;
  Fts5IndexIter *pIter = pCsr->pIter;
  i64 *pp = &pCsr->iInstPos;
  int *po = &pCsr->iInstOff;
  


  while( eDetail==FTS5_DETAIL_NONE
      || sqlite3Fts5PoslistNext64(pIter->pData, pIter->nData, po, pp) 
  ){
    pCsr->iInstPos = 0;
    pCsr->iInstOff = 0;

    rc = sqlite3Fts5IterNextScan(pCsr->pIter);
    if( rc==SQLITE_OK ){
      rc = fts5VocabInstanceNewTerm(pCsr);
      if( eDetail==FTS5_DETAIL_NONE ) break;
    }
    if( rc ){
      pCsr->bEof = 1;
      break;
    }
  }

................................................................................
    /* xCommit       */ 0,
    /* xRollback     */ 0,
    /* xFindFunction */ 0,
    /* xRename       */ 0,
    /* xSavepoint    */ 0,
    /* xRelease      */ 0,
    /* xRollbackTo   */ 0,

  };
  void *p = (void*)pGlobal;

  return sqlite3_create_module_v2(db, "fts5vocab", &fts5Vocab, p, 0);
}




    
#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS5) */

/************** End of fts5.c ************************************************/
/************** Begin file stmt.c ********************************************/
................................................................................
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0,                         /* xRollbackTo */

};

#endif /* SQLITE_OMIT_VIRTUALTABLE */

SQLITE_PRIVATE int sqlite3StmtVtabInit(sqlite3 *db){
  int rc = SQLITE_OK;
#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
#endif
  return rc;
}
#endif /* SQLITE_CORE */
#endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_STMTVTAB) */

/************** End of stmt.c ************************************************/
#if __LINE__!=219137
#undef SQLITE_SOURCE_ID
#define SQLITE_SOURCE_ID      "2018-09-18 20:20:44 2ac9003de44da7dafa3fbb1915ac5725a9275c86bf2f3b7aa19321bf1460alt2"
#endif
/* Return the source-id for this library */
SQLITE_API const char *sqlite3_sourceid(void){ return SQLITE_SOURCE_ID; }
/************************** End of sqlite3.c ******************************/


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1
2
3
4
5
6
7
8
9
10
...
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
...
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
....
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
....
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
....
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
....
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
....
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
....
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
....
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
....
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
....
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
....
7352
7353
7354
7355
7356
7357
7358
7359
7360
7361
7362
7363
7364
7365
7366
7367
7368
....
9689
9690
9691
9692
9693
9694
9695
9696
9697
9698
9699
9700
9701
9702
9703
.....
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
.....
11641
11642
11643
11644
11645
11646
11647
11648
11649
11650
11651
11652
11653
11654
11655
.....
11659
11660
11661
11662
11663
11664
11665
11666
11667
11668
11669
11670
11671
11672
11673
11674
11675
11676
11677
11678
11679
11680
.....
12059
12060
12061
12062
12063
12064
12065
12066
12067
12068
12069
12070
12071
12072
12073
12074
12075
12076
12077
12078
.....
12092
12093
12094
12095
12096
12097
12098
12099
12100
12101
12102
12103
12104
12105
12106
12107
12108
12109
12110
12111
12112
12113
12114
12115
12116
12117
12118
12119
12120
12121
12122
12123
12124
12125
12126
12127
12128
12129
12130
12131
12132
12133
12134
12135
12136
12137
12138
12139
12140
12141
12142
12143
12144
.....
16157
16158
16159
16160
16161
16162
16163
16164
16165
16166
16167
16168
16169
16170
16171
16172
16173
16174
16175
16176
16177
16178
.....
16225
16226
16227
16228
16229
16230
16231
16232
16233
16234
16235
16236
16237
16238
16239
.....
16390
16391
16392
16393
16394
16395
16396
16397
16398
16399
16400
16401
16402
16403
16404
16405
16406
16407
16408
16409
16410
16411
16412
16413
16414
16415
.....
16800
16801
16802
16803
16804
16805
16806
16807
16808
16809
16810
16811
16812
16813
16814
16815
16816
.....
16853
16854
16855
16856
16857
16858
16859
16860
16861
16862
16863
16864
16865
16866
16867
.....
17140
17141
17142
17143
17144
17145
17146
17147
17148
17149
17150
17151
17152
17153
17154
17155
17156
17157
17158
17159
.....
17327
17328
17329
17330
17331
17332
17333
17334
17335
17336
17337
17338
17339
17340
17341
17342
17343
17344
17345
.....
17361
17362
17363
17364
17365
17366
17367
17368
17369
17370
17371
17372
17373
17374
17375
.....
18047
18048
18049
18050
18051
18052
18053
18054
18055
18056
18057
18058
18059
18060
18061
.....
18519
18520
18521
18522
18523
18524
18525
18526
18527
18528
18529
18530
18531
18532
18533
.....
18636
18637
18638
18639
18640
18641
18642
18643
18644
18645
18646
18647
18648
18649
18650
.....
18869
18870
18871
18872
18873
18874
18875
18876
18877
18878
18879
18880
18881
18882
18883
18884
18885
18886
18887
18888
18889
18890
18891
.....
18898
18899
18900
18901
18902
18903
18904
18905
18906
18907
18908
18909
18910
18911
18912
18913
18914
.....
19058
19059
19060
19061
19062
19063
19064
19065
19066
19067
19068
19069
19070
19071
19072
.....
19105
19106
19107
19108
19109
19110
19111
19112
19113
19114
19115
19116
19117
19118
19119
19120
19121
.....
19265
19266
19267
19268
19269
19270
19271
19272
19273
19274
19275
19276
19277
19278
19279
19280
19281
.....
20220
20221
20222
20223
20224
20225
20226
20227
20228
20229
20230
20231
20232
20233
20234
20235
20236
.....
28451
28452
28453
28454
28455
28456
28457
28458
28459
28460
28461
28462
28463
28464
28465
28466
28467
28468
28469
28470
28471
28472
28473
28474
28475
28476
28477
28478
28479
28480
28481
28482
28483
28484
28485
28486
28487
28488
28489
28490
28491
28492
28493
28494
28495
28496
28497
28498
28499
28500
.....
28541
28542
28543
28544
28545
28546
28547

28548
28549




























28550

28551
28552
28553
28554
28555
28556
28557
.....
28833
28834
28835
28836
28837
28838
28839
28840
28841
28842
28843
28844
28845
28846
28847
.....
31661
31662
31663
31664
31665
31666
31667
31668
31669
31670
31671
31672
31673
31674
31675
31676
31677
31678
31679
31680
31681
31682
31683
31684
31685
31686
31687
31688
.....
31786
31787
31788
31789
31790
31791
31792
31793
31794
31795
31796
31797
31798
31799
31800
31801
31802
31803
31804
31805
31806
31807
31808
31809
31810
31811
31812
31813
31814
31815
31816
31817
31818
31819
31820
31821
31822
31823
31824
31825
31826
31827
31828
31829
31830
31831
31832
31833
.....
31864
31865
31866
31867
31868
31869
31870
31871
31872
31873
31874
31875
31876
31877
31878
31879
31880
31881
31882
31883
31884
31885
.....
32254
32255
32256
32257
32258
32259
32260
32261

32262
32263
32264

32265
32266
32267
32268
32269
32270
32271
.....
32835
32836
32837
32838
32839
32840
32841
32842
32843
32844
32845
32846
32847
32848
32849
32850
32851
32852
32853
.....
33433
33434
33435
33436
33437
33438
33439
33440

33441
33442
33443
33444
33445
33446
33447
.....
33479
33480
33481
33482
33483
33484
33485
33486
33487
33488
33489
33490
33491
33492
33493
33494
33495
33496
33497
33498
33499
33500
33501
33502
.....
33616
33617
33618
33619
33620
33621
33622
33623
33624
33625
33626
33627
33628
33629
33630
33631
.....
33652
33653
33654
33655
33656
33657
33658
33659

33660
33661
33662
33663
33664
33665
33666
.....
33713
33714
33715
33716
33717
33718
33719
33720
33721
33722
33723
33724
33725
33726
33727
.....
33733
33734
33735
33736
33737
33738
33739
33740
33741
33742
33743
33744
33745
33746
33747
.....
36531
36532
36533
36534
36535
36536
36537
36538
36539
36540
36541
36542
36543
36544
36545
36546
36547
36548
36549
36550
36551
36552
36553
36554
36555
36556
.....
36564
36565
36566
36567
36568
36569
36570
36571
36572
36573
36574
36575
36576
36577
36578
36579
36580
36581
36582
36583
36584
36585
36586
36587
.....
36603
36604
36605
36606
36607
36608
36609
36610
36611
36612
36613
36614
36615
36616
36617
36618
36619
36620
36621
36622
36623
36624
36625
36626
36627
36628
36629
36630
36631
36632
.....
36690
36691
36692
36693
36694
36695
36696
36697
36698
36699
36700
36701
36702
36703
36704
36705
36706
36707
36708
36709
36710
36711
36712
36713
36714
36715
.....
36743
36744
36745
36746
36747
36748
36749
36750
36751
36752
36753
36754
36755
36756
36757
36758
36759
36760
36761
36762
36763
36764
36765
36766
36767
36768
36769
36770
.....
36862
36863
36864
36865
36866
36867
36868
36869
36870
36871
36872
36873
36874
36875
36876
36877
36878
36879
36880
36881
36882
36883
36884
36885
36886
36887
36888
36889
36890
36891
36892
36893
36894
36895
36896
36897
36898
36899
36900
36901
36902
36903
36904
.....
36910
36911
36912
36913
36914
36915
36916
36917
36918
36919
36920
36921
36922
36923
36924
36925
36926
36927
36928
36929
36930
.....
36968
36969
36970
36971
36972
36973
36974
36975
36976
36977
36978
36979
36980
36981
36982
36983
36984
36985
36986
36987
36988
36989
36990
36991
36992
36993
36994
36995
36996
36997
36998
36999
37000
37001
37002
37003
37004
37005
37006
37007
37008
.....
37022
37023
37024
37025
37026
37027
37028
37029
37030
37031
37032
37033
37034
37035
37036
.....
37045
37046
37047
37048
37049
37050
37051
37052
37053
37054
37055
37056
37057
37058
37059
37060
37061
37062
37063
37064
37065
37066
37067
37068
37069
37070
37071
37072
37073
37074
.....
37077
37078
37079
37080
37081
37082
37083
37084
37085
37086
37087
37088
37089
37090
37091
.....
37111
37112
37113
37114
37115
37116
37117
37118
37119
37120
37121
37122
37123
37124
37125
37126
37127
37128
37129
37130
.....
37189
37190
37191
37192
37193
37194
37195
37196
37197
37198
37199
37200
37201
37202
37203
.....
37239
37240
37241
37242
37243
37244
37245
37246
37247
37248
37249
37250
37251
37252
37253
37254
37255
37256
37257
37258
37259
37260
37261
37262
37263
37264
37265
37266
37267
37268
37269
.....
47547
47548
47549
47550
47551
47552
47553
47554
47555
47556
47557
47558
47559
47560
47561
.....
57330
57331
57332
57333
57334
57335
57336
57337
57338
57339
57340
57341
57342
57343
57344
.....
65991
65992
65993
65994
65995
65996
65997
65998
65999
66000
66001
66002
66003
66004
66005
.....
66465
66466
66467
66468
66469
66470
66471
66472
66473
66474
66475
66476
66477
66478
66479
.....
74261
74262
74263
74264
74265
74266
74267
74268
74269
74270
74271
74272
74273
74274
74275
74276
.....
75837
75838
75839
75840
75841
75842
75843
75844
75845
75846
75847
75848
75849
75850
75851
75852
75853
75854
75855
75856
75857
.....
75865
75866
75867
75868
75869
75870
75871
75872
75873
75874
75875
75876
75877
75878
75879
75880
75881
75882
75883
.....
78941
78942
78943
78944
78945
78946
78947
78948
78949
78950
78951
78952
78953
78954
78955
78956
78957
.....
80345
80346
80347
80348
80349
80350
80351
80352
80353
80354
80355
80356
80357
80358
80359
80360
80361
.....
82358
82359
82360
82361
82362
82363
82364
82365
82366
82367
82368
82369
82370
82371
82372
82373
82374
82375
82376
82377
82378
82379
82380
82381
.....
85807
85808
85809
85810
85811
85812
85813



85814
85815
85816
85817
85818
85819
85820
85821
85822
85823
85824
85825
85826
85827
85828
85829
85830
85831
85832
85833
85834
85835
85836
85837
85838
85839
.....
88681
88682
88683
88684
88685
88686
88687
88688
88689
88690
88691
88692
88693
88694
88695
.....
89878
89879
89880
89881
89882
89883
89884
89885
89886
89887
89888
89889
89890
89891
89892
89893
89894
89895
89896
.....
89904
89905
89906
89907
89908
89909
89910
89911
89912
89913
89914
89915
89916
89917
89918
89919
.....
89982
89983
89984
89985
89986
89987
89988
89989
89990
89991
89992
89993
89994
89995
89996
89997
89998
89999
90000
90001
90002
90003
90004
90005
90006
90007
90008
90009
90010
90011
90012
90013
.....
94264
94265
94266
94267
94268
94269
94270
94271
94272
94273
94274
94275
94276
94277
94278
94279
.....
94538
94539
94540
94541
94542
94543
94544
94545
94546
94547
94548
94549
94550
94551
94552
.....
94582
94583
94584
94585
94586
94587
94588

94589
94590
94591
94592
94593
94594
94595
.....
94643
94644
94645
94646
94647
94648
94649
94650
94651
94652
94653
94654
94655
94656
94657
.....
94669
94670
94671
94672
94673
94674
94675
94676
94677
94678
94679
94680
94681
94682
94683
94684
94685
94686
94687
94688
94689
.....
94732
94733
94734
94735
94736
94737
94738
94739
94740
94741
94742
94743
94744
94745
94746
.....
94754
94755
94756
94757
94758
94759
94760
94761
94762
94763
94764
94765
94766
94767
94768
.....
94854
94855
94856
94857
94858
94859
94860
94861
94862
94863
94864
94865
94866
94867
94868
.....
94932
94933
94934
94935
94936
94937
94938
94939
94940
94941
94942
94943
94944
94945
94946
94947
94948
.....
95024
95025
95026
95027
95028
95029
95030
95031
95032
95033
95034
95035
95036
95037
95038
.....
95068
95069
95070
95071
95072
95073
95074


95075
95076
95077
95078
95079
95080
95081
95082
.....
95158
95159
95160
95161
95162
95163
95164
95165
95166
95167
95168
95169
95170
95171
95172
95173
95174
95175
95176
95177
95178
95179
95180
95181
95182
95183
.....
95199
95200
95201
95202
95203
95204
95205
95206
95207
95208
95209
95210
95211
95212
95213
95214
95215
95216
95217
95218
95219
95220
95221
95222
95223
95224
95225
95226
95227
95228
95229
95230
95231
95232
.....
95641
95642
95643
95644
95645
95646
95647
95648
95649
95650
95651
95652
95653
95654
95655
95656
95657
95658
95659
95660
95661
.....
96110
96111
96112
96113
96114
96115
96116
96117
96118
96119
96120
96121
96122
96123
96124
96125
.....
96195
96196
96197
96198
96199
96200
96201
96202
96203
96204
96205
96206
96207
96208
96209
96210
96211
96212
96213
96214
96215
.....
97104
97105
97106
97107
97108
97109
97110
97111
97112
97113
97114
97115
97116
97117
97118
97119
97120
97121
.....
97126
97127
97128
97129
97130
97131
97132
97133
97134
97135
97136
97137
97138
97139
97140
97141
97142
.....
97192
97193
97194
97195
97196
97197
97198
97199
97200
97201
97202
97203
97204
97205
97206
.....
97219
97220
97221
97222
97223
97224
97225
97226
97227
97228
97229
97230
97231
97232
97233
.....
97322
97323
97324
97325
97326
97327
97328
97329
97330
97331
97332
97333
97334
97335
97336
97337
97338
97339
97340
97341
97342
97343
97344
97345
97346







97347
97348
97349
97350
97351
97352
97353
.....
98145
98146
98147
98148
98149
98150
98151
98152
98153
98154
98155
98156
98157
98158
98159
98160
.....
98201
98202
98203
98204
98205
98206
98207
98208
98209
98210
98211
98212
98213
98214
98215
98216
98217
98218
98219
98220
98221
98222
.....
99442
99443
99444
99445
99446
99447
99448
99449
99450
99451
99452
99453
99454
99455
99456
.....
99466
99467
99468
99469
99470
99471
99472
99473
99474
99475
99476
99477
99478
99479
99480
.....
99680
99681
99682
99683
99684
99685
99686
99687
99688
99689
99690
99691
99692
99693
99694
99695
.....
99924
99925
99926
99927
99928
99929
99930
99931
99932
99933
99934
99935
99936
99937
99938
99939
99940
99941
99942
99943
99944
99945
99946
99947
99948
99949
......
100786
100787
100788
100789
100790
100791
100792
100793
100794
100795
100796
100797
100798
100799
100800
100801
100802
100803
100804
100805
100806
100807
100808
100809
100810
100811
100812
100813
......
100819
100820
100821
100822
100823
100824
100825















100826
100827
100828
100829
100830
100831
100832
......
100909
100910
100911
100912
100913
100914
100915
100916
100917
100918
100919
100920
100921
100922
100923
100924



100925
100926
100927
100928
100929
100930
100931
......
100959
100960
100961
100962
100963
100964
100965
100966
100967
100968
100969
100970
100971
100972
100973
100974
......
101191
101192
101193
101194
101195
101196
101197
101198
101199
101200
101201
101202
101203
101204
101205
......
101576
101577
101578
101579
101580
101581
101582














101583
101584
101585
101586
101587
101588
101589
......
101632
101633
101634
101635
101636
101637
101638
101639
101640
101641
101642
101643
101644
101645
101646
101647
101648
101649
101650
101651
101652
101653
101654
101655
101656
101657
101658
101659
......
102210
102211
102212
102213
102214
102215
102216
102217
102218
102219
102220
102221
102222
102223
102224
......
102468
102469
102470
102471
102472
102473
102474
102475
102476
102477
102478
102479
102480
102481
102482
102483
102484
102485
102486
102487
102488
102489
......
102753
102754
102755
102756
102757
102758
102759
102760
102761
102762
102763
102764
102765
102766
102767
102768
......
102834
102835
102836
102837
102838
102839
102840
102841
102842
102843
102844
102845
102846
102847
102848
102849
102850
102851
102852
102853
102854
102855
102856
102857
102858
102859
102860
102861
102862
102863
102864
102865
......
102866
102867
102868
102869
102870
102871
102872
102873
102874
102875
102876
102877
102878
102879
102880
102881
102882
102883
102884
102885
102886
102887
102888
102889
102890
102891
102892
102893
102894
102895
102896
102897
102898
102899
102900
102901
102902
102903
102904
102905
102906
102907
102908
102909
102910
102911
102912
......
102956
102957
102958
102959
102960
102961
102962
102963
102964
102965
102966
102967
102968
102969
102970
102971
102972
102973
102974
102975
102976
102977
102978
102979
102980
102981
102982
102983
102984
102985
102986
102987
102988
102989
102990
102991
102992
102993
102994
......
105736
105737
105738
105739
105740
105741
105742
105743
105744
105745
105746
105747
105748
105749
105750
......
105793
105794
105795
105796
105797
105798
105799
105800
105801
105802
105803
105804
105805
105806
105807
......
106217
106218
106219
106220
106221
106222
106223

106224
106225
106226
106227
106228
106229
106230
106231
106232

106233
106234
106235
106236
106237
106238
106239
......
106492
106493
106494
106495
106496
106497
106498
106499
106500
106501
106502
106503
106504
106505
106506
106507
106508
106509
106510
106511
......
106655
106656
106657
106658
106659
106660
106661
106662
106663
106664
106665
106666
106667
106668
106669
106670
106671
106672
106673
106674
106675
106676
106677
106678
106679
106680
106681
106682
106683
106684
106685
106686
106687
106688
106689
106690
106691
106692
106693
......
107650
107651
107652
107653
107654
107655
107656




107657
107658
107659
107660
107661
107662
107663
......
107754
107755
107756
107757
107758
107759
107760
107761
107762
107763
107764
107765
107766
107767
107768
107769
107770
107771
107772
107773
107774
107775
107776
107777
107778
107779
107780
107781
107782
107783
107784
107785
107786
107787
107788
107789
107790
107791
107792
107793
......
107819
107820
107821
107822
107823
107824
107825
107826
107827
107828
107829
107830
107831
107832
107833
107834
107835
107836
......
108331
108332
108333
108334
108335
108336
108337
108338
108339
108340
108341
108342
108343
108344
108345
......
110786
110787
110788
110789
110790
110791
110792
110793
110794
110795
110796
110797
110798
110799
110800
110801
110802
110803
110804
110805
110806
110807
110808
110809
110810
110811
110812
110813
110814
110815
110816
110817
110818
110819
110820
110821
110822
110823
110824
110825
110826
110827
110828
......
110893
110894
110895
110896
110897
110898
110899
110900
110901
110902
110903
110904
110905
110906
110907
......
111040
111041
111042
111043
111044
111045
111046
111047
111048
111049
111050
111051
111052
111053
111054
111055
111056
111057
111058
111059
111060
111061
111062
111063
111064
111065
111066
111067
111068
111069
111070
111071
111072
111073
111074
111075
111076
111077
111078
111079
111080
111081
111082
111083
111084
111085















111086
111087
111088

111089
111090
111091
111092
111093
111094
111095
......
114485
114486
114487
114488
114489
114490
114491
114492
114493
114494
114495
114496
114497
114498
114499
......
115561
115562
115563
115564
115565
115566
115567
115568
115569
115570
115571
115572
115573
115574
115575
115576
......
116542
116543
116544
116545
116546
116547
116548
116549
116550
116551
116552
116553
116554
116555
116556
116557
116558
116559
116560
116561
116562
116563
116564
......
116572
116573
116574
116575
116576
116577
116578
116579
116580
116581
116582
116583
116584
116585
116586
116587
116588

116589
116590
116591
116592
116593
116594
116595
116596
116597
116598
116599
116600
......
116601
116602
116603
116604
116605
116606
116607
116608
116609
116610
116611
116612
116613
116614
116615
......
116807
116808
116809
116810
116811
116812
116813
116814
116815
116816
116817
116818
116819
116820
116821
116822
116823
116824
116825
116826
116827
......
118314
118315
118316
118317
118318
118319
118320
118321
118322
118323
118324
118325
118326
118327
118328
118329
118330
118331
118332
118333
118334
118335
118336
......
118610
118611
118612
118613
118614
118615
118616
118617
118618
118619
118620
118621
118622
118623
118624
118625
......
119067
119068
119069
119070
119071
119072
119073
119074
119075
119076
119077
119078
119079
119080
119081
119082
119083
119084
119085
119086
119087
......
119523
119524
119525
119526
119527
119528
119529

119530
119531
119532
119533
119534
119535
119536
119537
119538
119539
......
119542
119543
119544
119545
119546
119547
119548
119549
119550
119551
119552
119553
119554
119555
119556
119557
119558
119559
119560
119561
119562
119563
119564
119565
119566
119567
119568
119569
119570
119571
119572
119573
119574
119575
119576
119577
119578
119579
119580
119581
119582
119583
119584
119585
119586
119587
119588

119589
119590
119591

119592
119593
119594
119595
119596


119597
119598
119599


119600
119601
119602
119603
119604
119605
119606
119607
119608
119609
119610
119611
119612
119613
119614
119615
119616
......
119638
119639
119640
119641
119642
119643
119644
119645
119646
119647
119648
119649
119650
119651
119652
......
119675
119676
119677
119678
119679
119680
119681
119682
119683
119684
119685
119686
119687
119688
119689
......
119710
119711
119712
119713
119714
119715
119716
119717
119718
119719
119720
119721
119722
119723
119724
119725
119726
119727
119728
119729
119730
119731
......
119747
119748
119749
119750
119751
119752
119753
119754
119755
119756
119757
119758
119759
119760
119761
119762
119763
119764
119765
119766
119767
119768
......
119790
119791
119792
119793
119794
119795
119796
119797
119798
119799
119800
119801
119802
119803
119804
119805
119806
119807
119808
119809
119810
119811
119812
119813
119814
119815
119816
119817
119818
......
119826
119827
119828
119829
119830
119831
119832
119833
119834
119835
119836
119837
119838
119839
119840
119841
119842
119843
119844
119845
......
119866
119867
119868
119869
119870
119871
119872
119873
119874
119875
119876
119877
119878
119879
119880
119881
119882
119883
119884
......
119888
119889
119890
119891
119892
119893
119894
119895
119896
119897
119898
119899
119900
119901
119902
......
119914
119915
119916
119917
119918
119919
119920
119921
119922
119923
119924
119925
119926
119927
119928
......
119947
119948
119949
119950
119951
119952
119953
119954
119955
119956
119957
119958
119959
119960
119961
......
119978
119979
119980
119981
119982
119983
119984
119985
119986
119987
119988
119989
119990
119991
119992
119993
119994
119995
......
120034
120035
120036
120037
120038
120039
120040
120041
120042
120043
120044
120045
120046
120047
120048
120049
120050
120051
120052
120053
120054
120055
120056
120057
120058
120059
120060
120061
120062
120063
120064
120065
120066
120067
120068
120069
120070
120071
120072
120073
120074
120075
120076
120077
120078
120079
120080
120081
120082
120083
120084
120085
120086
120087
120088
120089
120090
120091
120092
......
120130
120131
120132
120133
120134
120135
120136
120137
120138
120139
120140
120141
120142
120143
120144
120145
120146
120147
120148
120149
120150
120151
120152
120153
120154
120155
......
121153
121154
121155
121156
121157
121158
121159
121160
121161
121162
121163
121164
121165
121166
121167
......
121206
121207
121208
121209
121210
121211
121212
121213
121214
121215
121216
121217
121218
121219
121220
121221
121222
121223
121224
121225
121226
121227
121228
121229
121230
121231
121232
121233
121234
121235
121236
121237
121238
121239
121240
121241
121242
121243
121244
......
122234
122235
122236
122237
122238
122239
122240
122241
122242
122243
122244
122245
122246
122247
122248
122249
122250
122251
122252
122253
122254

122255
122256
122257


122258
122259
122260
122261
122262
122263
122264
122265
122266
122267
122268
122269
122270
122271
122272
122273
122274
122275
122276
122277
......
122593
122594
122595
122596
122597
122598
122599
122600
122601
122602
122603
122604
122605
122606
122607
122608
......
122947
122948
122949
122950
122951
122952
122953
122954
122955
122956
122957
122958
122959
122960
122961
122962
......
123329
123330
123331
123332
123333
123334
123335
123336
123337
123338
123339
123340
123341
123342
123343
123344
123345
123346
123347
123348
123349
123350
123351
123352
123353
123354
123355
123356
123357
123358
123359
123360
123361
123362
123363
123364
123365
123366
123367
123368
123369
123370
123371
123372
123373
123374
123375
123376
123377
123378
123379
123380
123381
123382
123383
123384
123385
123386
123387
123388
123389
123390
123391
123392
123393
123394
123395
123396
123397
123398
123399
123400
123401
123402
123403
123404
123405
123406
123407
123408
123409
123410
123411
123412
123413
123414
123415
123416
123417
123418
123419
123420
123421
123422
123423
123424
123425
123426
123427
123428
123429
123430
123431
123432
123433
123434
123435
123436
123437
123438
123439
123440
123441
123442
123443
123444
123445
123446
123447
123448
123449
123450
123451
123452
123453
123454
123455
123456
123457
123458
123459
123460
123461
123462
123463
123464
123465
123466
123467
123468
123469
123470
123471
123472
123473
123474
123475
123476
123477
123478
123479
123480
123481
123482
123483
123484
123485
123486
123487
123488
123489
123490
123491
123492
123493
123494
123495
123496
123497
123498
123499
123500
123501
123502
123503
123504
123505
123506
123507
123508
123509
123510
123511
123512
123513
123514
123515
123516
123517
123518
123519
123520
123521
123522
123523
123524
123525
123526
123527
123528
123529
123530
123531
123532
123533
123534
123535
123536
123537
123538
123539
123540
123541
123542
123543
123544
123545
123546
123547
123548
123549
123550
123551
123552
123553
123554
123555
123556
123557
123558
123559
123560
123561
123562
123563
123564
123565
123566
123567
123568
123569
123570
123571
123572
123573
123574
123575
123576
123577
123578
123579
123580
123581
123582
123583
123584
123585
123586
123587
123588
123589
123590
123591
123592
123593
123594
123595
123596
123597
123598
123599
123600
123601
123602
123603
123604
123605
123606
123607
123608
123609
123610
123611
123612
123613
123614
123615
123616
123617
123618
123619
123620
123621
123622
123623
123624
123625
123626
123627
123628
123629
123630
......
124629
124630
124631
124632
124633
124634
124635
124636
124637
124638
124639
124640
124641
124642
124643
......
124652
124653
124654
124655
124656
124657
124658
124659
124660
124661
124662
124663
124664
124665
124666
124667
124668
124669
124670
124671
......
125506
125507
125508
125509
125510
125511
125512
125513
125514
125515
125516
125517
125518
125519
125520
......
125691
125692
125693
125694
125695
125696
125697
125698
125699
125700
125701
125702
125703
125704
125705
125706
125707
125708
125709
125710
125711
125712
125713
......
125790
125791
125792
125793
125794
125795
125796
125797
125798
125799
125800
125801
125802
125803
125804
......
126143
126144
126145
126146
126147
126148
126149
126150
126151
126152
126153
126154
126155
126156
126157
126158
126159
126160
126161
126162
126163
......
127900
127901
127902
127903
127904
127905
127906
127907
127908
127909
127910
127911
127912
127913
127914
127915
127916
127917
127918
127919
127920
127921
127922
127923

127924
127925
127926
127927
127928
127929
127930
127931
127932
127933
127934
127935
127936
127937
127938
127939
127940
127941
127942
127943
127944
127945
127946
127947
......
131914
131915
131916
131917
131918
131919
131920
131921
131922
131923
131924
131925
131926
131927
131928
131929
131930
131931
131932
131933
131934
131935
131936
131937
131938
131939
131940
131941
131942
131943
131944
131945
131946
131947
131948
131949
131950
131951
131952
131953
131954
131955
131956
131957
131958
131959
131960
131961
131962
131963
131964
131965
131966
131967
131968
131969
131970
131971
131972
131973
131974
131975
131976
131977
131978
......
132189
132190
132191
132192
132193
132194
132195


132196
132197
132198
132199
132200
132201
132202
132203
132204
132205
132206
132207

132208
132209
132210
132211
132212
132213
132214
......
132749
132750
132751
132752
132753
132754
132755
132756
132757
132758
132759
132760
132761
132762
132763
......
133250
133251
133252
133253
133254
133255
133256
133257
133258
133259
133260
133261
133262
133263
133264
133265
......
133793
133794
133795
133796
133797
133798
133799

133800
133801
133802
133803
133804
133805
133806
133807
133808


133809
133810
133811
133812
133813
133814
133815
......
133821
133822
133823
133824
133825
133826
133827
133828
133829
133830
133831
133832
133833
133834
133835
133836
......
134517
134518
134519
134520
134521
134522
134523
134524
134525
134526
134527
134528
134529
134530
134531
......
135137
135138
135139
135140
135141
135142
135143
135144
135145
135146
135147
135148
135149
135150
135151
135152
135153
135154
135155
135156
135157
135158
135159
135160
135161
135162
135163
135164
135165
135166
135167
135168
135169
135170
135171
135172
135173
135174
135175
135176
......
135725
135726
135727
135728
135729
135730
135731
135732
135733
135734
135735
135736
135737
135738
135739
......
136417
136418
136419
136420
136421
136422
136423
136424
136425
136426
136427
136428
136429
136430
136431
......
137817
137818
137819
137820
137821
137822
137823
137824
137825
137826
137827
137828
137829
137830
137831
......
137918
137919
137920
137921
137922
137923
137924
137925
137926
137927
137928
137929
137930
137931
137932
......
137940
137941
137942
137943
137944
137945
137946
137947
137948
137949
137950
137951
137952
137953
137954
137955
137956
137957
137958
137959
......
137963
137964
137965
137966
137967
137968
137969
137970
137971
137972
137973
137974
137975
137976
137977
137978
137979
137980
......
138918
138919
138920
138921
138922
138923
138924
138925
138926
138927
138928
138929
138930
138931
138932
......
139110
139111
139112
139113
139114
139115
139116
139117
139118
139119
139120
139121
139122
139123
139124
139125
139126
139127
139128
139129
139130
139131
139132
139133
139134
139135
139136
139137
139138
......
139987
139988
139989
139990
139991
139992
139993

139994
139995
139996
139997
139998
139999
140000
......
141257
141258
141259
141260
141261
141262
141263
141264
141265
141266
141267
141268
141269
141270
141271
141272
141273
141274
141275
141276
141277
141278
......
142672
142673
142674
142675
142676
142677
142678
142679
142680
142681
142682
142683
142684
142685
142686
142687
142688
142689
142690
......
142702
142703
142704
142705
142706
142707
142708
142709
142710
142711
142712
142713
142714
142715
142716
142717
142718
142719
142720
142721
142722
142723
142724
......
145092
145093
145094
145095
145096
145097
145098
145099
145100
145101
145102
145103
145104
145105
145106
145107
145108
145109
145110
145111
......
145214
145215
145216
145217
145218
145219
145220
145221
145222
145223
145224
145225
145226
145227
145228
......
145427
145428
145429
145430
145431
145432
145433
145434
145435
145436
145437
145438
145439
145440
145441
145442
145443
145444
145445
145446
145447
......
146596
146597
146598
146599
146600
146601
146602
146603
146604
146605
146606
146607
146608
146609
146610
......
146849
146850
146851
146852
146853
146854
146855
146856
146857
146858
146859



146860
146861
146862
146863
146864
146865
146866
......
147003
147004
147005
147006
147007
147008
147009
147010
147011
147012
147013
147014
147015
147016
147017
147018
147019
147020
147021
147022
147023
147024
147025
147026
147027
......
147082
147083
147084
147085
147086
147087
147088
147089
147090
147091
147092
147093
147094
147095
147096
147097
147098
147099
147100
147101
147102
147103
147104
147105
147106
147107
147108
147109
147110
147111
147112
147113
147114
147115
147116
147117
147118
147119
147120
147121
147122
147123
147124
147125
147126
147127
147128
147129
147130
147131
147132
147133
147134
147135
147136
147137
147138
147139
147140
147141
147142
147143
147144
147145
147146
147147
147148
147149
147150
147151
147152
147153
147154
147155
147156
147157
147158
147159
147160
147161
147162
147163
147164
147165
147166
147167
147168
147169
147170
147171
147172
147173
147174
147175
147176
147177
147178
147179
147180
147181
147182
147183
147184
147185
147186
147187
147188
147189
147190
147191
147192
147193
147194
147195
147196
147197
147198
147199
147200
147201
147202
147203
147204
147205
147206
147207
147208
147209
147210
147211
147212
147213
147214
147215
147216
147217
147218
147219
147220
147221
147222
147223
147224
147225
147226
147227
147228
147229
147230
147231
147232
147233
147234
147235
147236
147237
147238
147239
147240
147241
147242
147243
147244
147245
147246
147247
147248
147249
147250
147251
147252
147253
147254
147255
147256
147257
147258
147259
147260
147261
147262
147263
147264
147265
147266
147267
147268
147269
147270
147271
147272
147273
147274
147275
147276
147277
147278
147279
147280
147281
147282
147283
147284
147285
147286
147287
147288
147289
147290
147291
147292
147293
147294
147295
147296
......
147426
147427
147428
147429
147430
147431
147432
147433
147434
147435
147436
147437
147438
147439
147440
147441
147442
147443
147444
147445
147446
147447
147448
147449
147450
147451
147452
147453
147454
147455
147456
147457
147458
147459
147460
147461
147462
147463
147464
147465
147466
147467
147468
147469
147470
147471
147472
147473
147474
147475
147476
147477
......
147488
147489
147490
147491
147492
147493
147494
147495
147496
147497
147498
147499
147500
147501
147502
......
147520
147521
147522
147523
147524
147525
147526
147527
147528
147529
147530
147531
147532
147533
147534
147535
147536
147537
147538
147539
147540
147541
147542
147543
147544
147545
147546
147547
147548
147549
147550
147551
147552
147553
147554
147555
147556
147557
147558
147559
147560
147561
147562
......
147578
147579
147580
147581
147582
147583
147584
147585
147586
147587
147588
147589
147590
147591
147592
147593
147594
147595
147596

147597
147598
147599
147600
147601
147602
147603
147604
147605
147606
147607
147608
147609
147610
147611
147612
147613
147614
147615
147616
147617
147618
147619
147620
147621
147622
147623
147624
147625
147626
147627
147628
147629
147630
147631
147632
147633
147634
147635
147636
147637
147638
147639
147640
147641
147642
147643
147644
147645
147646
147647
147648
147649
147650
147651
147652
147653
147654
147655
147656
......
148266
148267
148268
148269
148270
148271
148272
148273
148274
148275
148276
148277
148278
148279
148280
148281
148282
148283
......
149146
149147
149148
149149
149150
149151
149152
149153
149154
149155
149156
149157
149158
149159
149160
149161
149162
149163
......
150033
150034
150035
150036
150037
150038
150039
150040
150041
150042
150043
150044
150045
150046
150047
150048
150049
150050
150051
150052
150053
150054
150055
150056
150057
......
152015
152016
152017
152018
152019
152020
152021
152022
152023
152024
152025
152026
152027
152028
152029
152030
152031
152032
152033
152034
152035
152036
152037
152038
152039
152040
152041
152042
152043
152044
152045
152046
152047
152048
152049
152050
152051
152052
152053
152054
152055
152056
152057
152058
152059
152060
152061
152062
152063
152064
152065
152066
152067
152068
152069
152070
152071
152072
152073
152074
152075
152076
152077
152078
152079
152080
152081
152082
152083
152084
152085
152086
152087
152088
152089
152090
152091
152092
152093
152094
152095
......
153479
153480
153481
153482
153483
153484
153485
153486
153487
153488
153489
153490
153491
153492
153493
......
155666
155667
155668
155669
155670
155671
155672
155673
155674
155675
155676
155677
155678
155679
155680
......
155706
155707
155708
155709
155710
155711
155712
155713
155714
155715
155716
155717
155718
155719
155720
155721
155722
......
160048
160049
160050
160051
160052
160053
160054
160055
160056
160057
160058
160059
160060
160061
160062
......
160086
160087
160088
160089
160090
160091
160092
160093
160094
160095
160096
160097
160098
160099
160100
160101
160102
160103
160104
160105
160106
160107
......
162072
162073
162074
162075
162076
162077
162078
162079
162080
162081
162082
162083
162084
162085
162086
162087
162088
162089
162090
162091
162092
162093
162094
162095
162096
162097
162098
162099
162100
162101
162102
162103
......
162112
162113
162114
162115
162116
162117
162118
162119
162120
162121
162122
162123
162124
162125
162126
......
164744
164745
164746
164747
164748
164749
164750
164751
164752
164753
164754
164755
164756
164757
164758
164759
......
168304
168305
168306
168307
168308
168309
168310
168311
168312
168313
168314
168315
168316
168317
168318
168319
......
169693
169694
169695
169696
169697
169698
169699
169700
169701
169702
169703
169704
169705
169706
169707
169708
169709
169710
169711
169712
169713
169714
169715
169716
169717
169718
169719
......
169727
169728
169729
169730
169731
169732
169733
169734
169735
169736
169737
169738
169739
169740
169741
......
172053
172054
172055
172056
172057
172058
172059
172060
172061
172062
172063
172064
172065
172066
172067
172068
172069
172070
172071
172072
172073
172074
172075
172076
172077
172078
172079

172080
172081
172082
172083
172084
172085
172086
......
178876
178877
178878
178879
178880
178881
178882
178883
178884
178885
178886
178887
178888
178889
178890
178891
......
178904
178905
178906
178907
178908
178909
178910
178911
178912
178913
178914
178915
178916
178917
178918
178919
......
182335
182336
182337
182338
182339
182340
182341
182342
182343
182344
182345
182346
182347
182348
182349
182350
182351
182352
182353
182354
182355
182356
182357
182358
182359
182360
182361
182362
182363
182364
182365
182366
......
182375
182376
182377
182378
182379
182380
182381
182382
182383
182384
182385
182386
182387
182388
182389
......
183366
183367
183368
183369
183370
183371
183372
183373
183374
183375
183376
183377
183378
183379
183380
183381
183382
183383
183384
183385
183386
183387
183388
183389
183390
183391
183392
183393
183394
183395
183396
......
183408
183409
183410
183411
183412
183413
183414
183415
183416
183417
183418
183419
183420
183421
183422
......
183428
183429
183430
183431
183432
183433
183434
183435
183436
183437
183438
183439
183440
183441
183442
......
183450
183451
183452
183453
183454
183455
183456
183457
183458
183459
183460
183461
183462
183463
183464
183465
183466
183467
183468
183469
183470
183471
183472
183473
183474
......
183518
183519
183520
183521
183522
183523
183524

183525
183526
183527

183528
183529
183530
183531
183532
183533
183534
183535
......
183723
183724
183725
183726
183727
183728
183729
183730
183731
183732
183733
183734
183735
183736
183737
183738
183739
183740
183741
183742
183743
183744
183745
183746
183747
183748
183749
183750
183751
183752
183753
183754
183755
183756
183757
......
183760
183761
183762
183763
183764
183765
183766
183767
183768
183769
183770
183771
183772
183773
183774
183775
183776
183777
183778
183779
183780
183781
183782
183783
183784
183785
183786
183787
183788
183789
183790
183791
183792
183793




183794
183795
183796
183797
183798
183799
183800
183801



183802
183803
183804
183805
183806
183807
183808
183809
183810
183811
183812
183813
183814
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......
183904
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......
184932
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......
184985
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184999
......
185008
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185020
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......
187070
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......
187100
187101
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187110
187111
187112
187113
187114
......
190696
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190771
190772
......
190777
190778
190779
190780
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190782
190783
190784




190785
190786
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190798
......
191043
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......
191207
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191213














191214
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......
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......
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191345
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......
191385
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......
191858
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......
191934
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191952



191953
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191967

191968
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......
191977
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......
191994
191995
191996
191997
191998
191999
192000
192001
192002

192003
192004
192005
192006
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192008
192009
......
192024
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......
192324
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......
192649
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......
192743
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192756
192757
......
192779
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192794
......
192844
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192858
......
193001
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193007
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193010
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......
194587
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194602
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......
195190
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......
195334
195335
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195340
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195349
......
195355
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195360
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195364
195365
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......
195370
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195409
195410
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......
195430
195431
195432
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195434
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195437
195438
195439
195440
195441
195442
195443
195444
......
195778
195779
195780
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195783
195784
195785
195786
195787
195788
195789
195790
195791
195792
195793
195794
195795
......
195806
195807
195808
195809
195810
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195846
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195851
195852
......
196155
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......
196234
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196249
......
196632
196633
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......
197004
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......
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......
197221
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197224
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......
197260
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......
197318
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197330
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197333
......
197692
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197697
197698



197699
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......
198088
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......
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......
211934
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......
215683
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......
215726
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......
219771
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219796
......
220097
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220109


220110
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......
220378
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......
220411
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220424
/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version 3.26.0.  By combining all the individual C code files into this
** single large file, the entire code can be compiled as a single translation
** unit.  This allows many compilers to do optimizations that would not be
** possible if the files were compiled separately.  Performance improvements
** of 5% or more are commonly seen when SQLite is compiled as a single
** translation unit.
**
** This file is all you need to compile SQLite.  To use SQLite in other
................................................................................
  "ENABLE_FTS3_TOKENIZER",
#endif
#if SQLITE_ENABLE_FTS4
  "ENABLE_FTS4",
#endif
#if SQLITE_ENABLE_FTS5
  "ENABLE_FTS5",
#endif
#if SQLITE_ENABLE_GEOPOLY
  "ENABLE_GEOPOLY",
#endif
#if SQLITE_ENABLE_HIDDEN_COLUMNS
  "ENABLE_HIDDEN_COLUMNS",
#endif
#if SQLITE_ENABLE_ICU
  "ENABLE_ICU",
#endif
................................................................................
  "ENABLE_MEMSYS3",
#endif
#if SQLITE_ENABLE_MEMSYS5
  "ENABLE_MEMSYS5",
#endif
#if SQLITE_ENABLE_MULTIPLEX
  "ENABLE_MULTIPLEX",
#endif
#if SQLITE_ENABLE_NORMALIZE
  "ENABLE_NORMALIZE",
#endif
#if SQLITE_ENABLE_NULL_TRIM
  "ENABLE_NULL_TRIM",
#endif
#if SQLITE_ENABLE_OVERSIZE_CELL_CHECK
  "ENABLE_OVERSIZE_CELL_CHECK",
#endif
................................................................................
** been edited in any way since it was last checked in, then the last
** four hexadecimal digits of the hash may be modified.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.26.0"
#define SQLITE_VERSION_NUMBER 3026000
#define SQLITE_SOURCE_ID      "2018-11-12 15:20:44 f9755f81b1c0fd29f242dce78a2fba570fa2714d76e93b8563f426a040352513"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros
................................................................................
** Existing configuration options might be discontinued.  Applications
** should check the return code from [sqlite3_db_config()] to make sure that
** the call worked.  ^The [sqlite3_db_config()] interface will return a
** non-zero [error code] if a discontinued or unsupported configuration option
** is invoked.
**
** <dl>
** [[SQLITE_DBCONFIG_LOOKASIDE]]
** <dt>SQLITE_DBCONFIG_LOOKASIDE</dt>
** <dd> ^This option takes three additional arguments that determine the 
** [lookaside memory allocator] configuration for the [database connection].
** ^The first argument (the third parameter to [sqlite3_db_config()] is a
** pointer to a memory buffer to use for lookaside memory.
** ^The first argument after the SQLITE_DBCONFIG_LOOKASIDE verb
** may be NULL in which case SQLite will allocate the
................................................................................
** connection is not currently using lookaside memory, or in other words
** when the "current value" returned by
** [sqlite3_db_status](D,[SQLITE_CONFIG_LOOKASIDE],...) is zero.
** Any attempt to change the lookaside memory configuration when lookaside
** memory is in use leaves the configuration unchanged and returns 
** [SQLITE_BUSY].)^</dd>
**
** [[SQLITE_DBCONFIG_ENABLE_FKEY]]
** <dt>SQLITE_DBCONFIG_ENABLE_FKEY</dt>
** <dd> ^This option is used to enable or disable the enforcement of
** [foreign key constraints].  There should be two additional arguments.
** The first argument is an integer which is 0 to disable FK enforcement,
** positive to enable FK enforcement or negative to leave FK enforcement
** unchanged.  The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether FK enforcement is off or on
** following this call.  The second parameter may be a NULL pointer, in
** which case the FK enforcement setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_TRIGGER]]
** <dt>SQLITE_DBCONFIG_ENABLE_TRIGGER</dt>
** <dd> ^This option is used to enable or disable [CREATE TRIGGER | triggers].
** There should be two additional arguments.
** The first argument is an integer which is 0 to disable triggers,
** positive to enable triggers or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether triggers are disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the trigger setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER]]
** <dt>SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</dt>
** <dd> ^This option is used to enable or disable the two-argument
** version of the [fts3_tokenizer()] function which is part of the
** [FTS3] full-text search engine extension.
** There should be two additional arguments.
** The first argument is an integer which is 0 to disable fts3_tokenizer() or
** positive to enable fts3_tokenizer() or negative to leave the setting
** unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether fts3_tokenizer is disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the new setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION]]
** <dt>SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION</dt>
** <dd> ^This option is used to enable or disable the [sqlite3_load_extension()]
** interface independently of the [load_extension()] SQL function.
** The [sqlite3_enable_load_extension()] API enables or disables both the
** C-API [sqlite3_load_extension()] and the SQL function [load_extension()].
** There should be two additional arguments.
** When the first argument to this interface is 1, then only the C-API is
................................................................................
** C-API or the SQL function.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether [sqlite3_load_extension()] interface
** is disabled or enabled following this call.  The second parameter may
** be a NULL pointer, in which case the new setting is not reported back.
** </dd>
**
** [[SQLITE_DBCONFIG_MAINDBNAME]] <dt>SQLITE_DBCONFIG_MAINDBNAME</dt>
** <dd> ^This option is used to change the name of the "main" database
** schema.  ^The sole argument is a pointer to a constant UTF8 string
** which will become the new schema name in place of "main".  ^SQLite
** does not make a copy of the new main schema name string, so the application
** must ensure that the argument passed into this DBCONFIG option is unchanged
** until after the database connection closes.
** </dd>
**
** [[SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE]] 
** <dt>SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE</dt>
** <dd> Usually, when a database in wal mode is closed or detached from a 
** database handle, SQLite checks if this will mean that there are now no 
** connections at all to the database. If so, it performs a checkpoint 
** operation before closing the connection. This option may be used to
** override this behaviour. The first parameter passed to this operation
** is an integer - positive to disable checkpoints-on-close, or zero (the
** default) to enable them, and negative to leave the setting unchanged.
** The second parameter is a pointer to an integer
** into which is written 0 or 1 to indicate whether checkpoints-on-close
** have been disabled - 0 if they are not disabled, 1 if they are.
** </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_QPSG]] <dt>SQLITE_DBCONFIG_ENABLE_QPSG</dt>
** <dd>^(The SQLITE_DBCONFIG_ENABLE_QPSG option activates or deactivates
** the [query planner stability guarantee] (QPSG).  When the QPSG is active,
** a single SQL query statement will always use the same algorithm regardless
** of values of [bound parameters].)^ The QPSG disables some query optimizations
** that look at the values of bound parameters, which can make some queries
** slower.  But the QPSG has the advantage of more predictable behavior.  With
** the QPSG active, SQLite will always use the same query plan in the field as
................................................................................
** The first argument to this setting is an integer which is 0 to disable 
** the QPSG, positive to enable QPSG, or negative to leave the setting
** unchanged. The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether the QPSG is disabled or enabled
** following this call.
** </dd>
**
** [[SQLITE_DBCONFIG_TRIGGER_EQP]] <dt>SQLITE_DBCONFIG_TRIGGER_EQP</dt>
** <dd> By default, the output of EXPLAIN QUERY PLAN commands does not 
** include output for any operations performed by trigger programs. This
** option is used to set or clear (the default) a flag that governs this
** behavior. The first parameter passed to this operation is an integer -
** positive to enable output for trigger programs, or zero to disable it,
** or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which is written 
** 0 or 1 to indicate whether output-for-triggers has been disabled - 0 if 
** it is not disabled, 1 if it is.  
** </dd>
**
** [[SQLITE_DBCONFIG_RESET_DATABASE]] <dt>SQLITE_DBCONFIG_RESET_DATABASE</dt>
** <dd> Set the SQLITE_DBCONFIG_RESET_DATABASE flag and then run
** [VACUUM] in order to reset a database back to an empty database
** with no schema and no content. The following process works even for
** a badly corrupted database file:
** <ol>
** <li> If the database connection is newly opened, make sure it has read the
**      database schema by preparing then discarding some query against the
................................................................................
** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0);
** <li> [sqlite3_exec](db, "[VACUUM]", 0, 0, 0);
** <li> sqlite3_db_config(db, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0);
** </ol>
** Because resetting a database is destructive and irreversible, the
** process requires the use of this obscure API and multiple steps to help
** ensure that it does not happen by accident.
**
** [[SQLITE_DBCONFIG_DEFENSIVE]] <dt>SQLITE_DBCONFIG_DEFENSIVE</dt>
** <dd>The SQLITE_DBCONFIG_DEFENSIVE option activates or deactivates the
** "defensive" flag for a database connection.  When the defensive
** flag is enabled, language features that allow ordinary SQL to 
** deliberately corrupt the database file are disabled.  The disabled
** features include but are not limited to the following:
** <ul>
** <li> The [PRAGMA writable_schema=ON] statement.
** <li> Writes to the [sqlite_dbpage] virtual table.
** <li> Direct writes to [shadow tables].
** </ul>
** </dd>
** </dl>
*/
#define SQLITE_DBCONFIG_MAINDBNAME            1000 /* const char* */
#define SQLITE_DBCONFIG_LOOKASIDE             1001 /* void* int int */
#define SQLITE_DBCONFIG_ENABLE_FKEY           1002 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_TRIGGER        1003 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */
#define SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE      1006 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_QPSG           1007 /* int int* */
#define SQLITE_DBCONFIG_TRIGGER_EQP           1008 /* int int* */
#define SQLITE_DBCONFIG_RESET_DATABASE        1009 /* int int* */
#define SQLITE_DBCONFIG_DEFENSIVE             1010 /* int int* */
#define SQLITE_DBCONFIG_MAX                   1010 /* Largest DBCONFIG */

/*
** CAPI3REF: Enable Or Disable Extended Result Codes
** METHOD: sqlite3
**
** ^The sqlite3_extended_result_codes() routine enables or disables the
** [extended result codes] feature of SQLite. ^The extended result
................................................................................
** probably reused many times.)^ ^Without this flag, [sqlite3_prepare_v3()]
** and [sqlite3_prepare16_v3()] assume that the prepared statement will 
** be used just once or at most a few times and then destroyed using
** [sqlite3_finalize()] relatively soon. The current implementation acts
** on this hint by avoiding the use of [lookaside memory] so as not to
** deplete the limited store of lookaside memory. Future versions of
** SQLite may act on this hint differently.
**
** [[SQLITE_PREPARE_NORMALIZE]] ^(<dt>SQLITE_PREPARE_NORMALIZE</dt>
** <dd>The SQLITE_PREPARE_NORMALIZE flag indicates that a normalized
** representation of the SQL statement should be calculated and then
** associated with the prepared statement, which can be obtained via
** the [sqlite3_normalized_sql()] interface.  The semantics used to
** normalize a SQL statement are unspecified and subject to change.
** At a minimum, literal values will be replaced with suitable
** placeholders.
** </dl>
*/
#define SQLITE_PREPARE_PERSISTENT              0x01
#define SQLITE_PREPARE_NORMALIZE               0x02

/*
** CAPI3REF: Compiling An SQL Statement
** KEYWORDS: {SQL statement compiler}
** METHOD: sqlite3
** CONSTRUCTOR: sqlite3_stmt
**
................................................................................
** ^The sqlite3_sql(P) interface returns a pointer to a copy of the UTF-8
** SQL text used to create [prepared statement] P if P was
** created by [sqlite3_prepare_v2()], [sqlite3_prepare_v3()],
** [sqlite3_prepare16_v2()], or [sqlite3_prepare16_v3()].
** ^The sqlite3_expanded_sql(P) interface returns a pointer to a UTF-8
** string containing the SQL text of prepared statement P with
** [bound parameters] expanded.
** ^The sqlite3_normalized_sql(P) interface returns a pointer to a UTF-8
** string containing the normalized SQL text of prepared statement P.  The
** semantics used to normalize a SQL statement are unspecified and subject
** to change.  At a minimum, literal values will be replaced with suitable
** placeholders.
**
** ^(For example, if a prepared statement is created using the SQL
** text "SELECT $abc,:xyz" and if parameter $abc is bound to integer 2345
** and parameter :xyz is unbound, then sqlite3_sql() will return
** the original string, "SELECT $abc,:xyz" but sqlite3_expanded_sql()
** will return "SELECT 2345,NULL".)^
**
................................................................................
** is available to hold the result, or if the result would exceed the
** the maximum string length determined by the [SQLITE_LIMIT_LENGTH].
**
** ^The [SQLITE_TRACE_SIZE_LIMIT] compile-time option limits the size of
** bound parameter expansions.  ^The [SQLITE_OMIT_TRACE] compile-time
** option causes sqlite3_expanded_sql() to always return NULL.
**
** ^The strings returned by sqlite3_sql(P) and sqlite3_normalized_sql(P)
** are managed by SQLite and are automatically freed when the prepared
** statement is finalized.
** ^The string returned by sqlite3_expanded_sql(P), on the other hand,
** is obtained from [sqlite3_malloc()] and must be free by the application
** by passing it to [sqlite3_free()].
*/
SQLITE_API const char *sqlite3_sql(sqlite3_stmt *pStmt);
SQLITE_API char *sqlite3_expanded_sql(sqlite3_stmt *pStmt);
SQLITE_API const char *sqlite3_normalized_sql(sqlite3_stmt *pStmt);

/*
** CAPI3REF: Determine If An SQL Statement Writes The Database
** METHOD: sqlite3_stmt
**
** ^The sqlite3_stmt_readonly(X) interface returns true (non-zero) if
** and only if the [prepared statement] X makes no direct changes to
................................................................................
                       void **ppArg);
  int (*xRename)(sqlite3_vtab *pVtab, const char *zNew);
  /* The methods above are in version 1 of the sqlite_module object. Those 
  ** below are for version 2 and greater. */
  int (*xSavepoint)(sqlite3_vtab *pVTab, int);
  int (*xRelease)(sqlite3_vtab *pVTab, int);
  int (*xRollbackTo)(sqlite3_vtab *pVTab, int);
  /* The methods above are in versions 1 and 2 of the sqlite_module object.
  ** Those below are for version 3 and greater. */
  int (*xShadowName)(const char*);
};

/*
** CAPI3REF: Virtual Table Indexing Information
** KEYWORDS: sqlite3_index_info
**
** The sqlite3_index_info structure and its substructures is used as part
................................................................................
** CAPI3REF: Virtual Table Configuration Options
**
** These macros define the various options to the
** [sqlite3_vtab_config()] interface that [virtual table] implementations
** can use to customize and optimize their behavior.
**
** <dl>
** [[SQLITE_VTAB_CONSTRAINT_SUPPORT]]
** <dt>SQLITE_VTAB_CONSTRAINT_SUPPORT
** <dd>Calls of the form
** [sqlite3_vtab_config](db,SQLITE_VTAB_CONSTRAINT_SUPPORT,X) are supported,
** where X is an integer.  If X is zero, then the [virtual table] whose
** [xCreate] or [xConnect] method invoked [sqlite3_vtab_config()] does not
** support constraints.  In this configuration (which is the default) if
** a call to the [xUpdate] method returns [SQLITE_CONSTRAINT], then the entire
................................................................................
** [sqlite3changeset_invert()] functions, all changes within the changeset 
** that apply to a single table are grouped together. This means that when 
** an application iterates through a changeset using an iterator created by 
** this function, all changes that relate to a single table are visited 
** consecutively. There is no chance that the iterator will visit a change 
** the applies to table X, then one for table Y, and then later on visit 
** another change for table X.
**
** The behavior of sqlite3changeset_start_v2() and its streaming equivalent
** may be modified by passing a combination of
** [SQLITE_CHANGESETSTART_INVERT | supported flags] as the 4th parameter.
**
** Note that the sqlite3changeset_start_v2() API is still <b>experimental</b>
** and therefore subject to change.
*/
SQLITE_API int sqlite3changeset_start(
  sqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
  int nChangeset,                 /* Size of changeset blob in bytes */
  void *pChangeset                /* Pointer to blob containing changeset */
);
SQLITE_API int sqlite3changeset_start_v2(
  sqlite3_changeset_iter **pp,    /* OUT: New changeset iterator handle */
  int nChangeset,                 /* Size of changeset blob in bytes */
  void *pChangeset,               /* Pointer to blob containing changeset */
  int flags                       /* SESSION_CHANGESETSTART_* flags */
);

/*
** CAPI3REF: Flags for sqlite3changeset_start_v2
**
** The following flags may passed via the 4th parameter to
** [sqlite3changeset_start_v2] and [sqlite3changeset_start_v2_strm]:
**
** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
**   Invert the changeset while iterating through it. This is equivalent to
**   inverting a changeset using sqlite3changeset_invert() before applying it.
**   It is an error to specify this flag with a patchset.
*/
#define SQLITE_CHANGESETSTART_INVERT        0x0002


/*
** CAPI3REF: Advance A Changeset Iterator
** METHOD: sqlite3_changeset_iter
**
** This function may only be used with iterators created by function
................................................................................
  int(*xConflict)(
    void *pCtx,                   /* Copy of sixth arg to _apply() */
    int eConflict,                /* DATA, MISSING, CONFLICT, CONSTRAINT */
    sqlite3_changeset_iter *p     /* Handle describing change and conflict */
  ),
  void *pCtx,                     /* First argument passed to xConflict */
  void **ppRebase, int *pnRebase, /* OUT: Rebase data */
  int flags                       /* SESSION_CHANGESETAPPLY_* flags */
);

/*
** CAPI3REF: Flags for sqlite3changeset_apply_v2
**
** The following flags may passed via the 9th parameter to
** [sqlite3changeset_apply_v2] and [sqlite3changeset_apply_v2_strm]:
................................................................................
**   Usually, the sessions module encloses all operations performed by
**   a single call to apply_v2() or apply_v2_strm() in a [SAVEPOINT]. The
**   SAVEPOINT is committed if the changeset or patchset is successfully
**   applied, or rolled back if an error occurs. Specifying this flag
**   causes the sessions module to omit this savepoint. In this case, if the
**   caller has an open transaction or savepoint when apply_v2() is called, 
**   it may revert the partially applied changeset by rolling it back.
**
** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
**   Invert the changeset before applying it. This is equivalent to inverting
**   a changeset using sqlite3changeset_invert() before applying it. It is
**   an error to specify this flag with a patchset.
*/
#define SQLITE_CHANGESETAPPLY_NOSAVEPOINT   0x0001
#define SQLITE_CHANGESETAPPLY_INVERT        0x0002

/* 
** CAPI3REF: Constants Passed To The Conflict Handler
**
** Values that may be passed as the second argument to a conflict-handler.
**
** <dl>
................................................................................
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
SQLITE_API int sqlite3changeset_start_strm(
  sqlite3_changeset_iter **pp,
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn
);
SQLITE_API int sqlite3changeset_start_v2_strm(
  sqlite3_changeset_iter **pp,
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int flags
);
SQLITE_API int sqlite3session_changeset_strm(
  sqlite3_session *pSession,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);
SQLITE_API int sqlite3session_patchset_strm(
................................................................................
  sqlite3_rebaser *pRebaser,
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int (*xOutput)(void *pOut, const void *pData, int nData),
  void *pOut
);

/*
** CAPI3REF: Configure global parameters
**
** The sqlite3session_config() interface is used to make global configuration
** changes to the sessions module in order to tune it to the specific needs 
** of the application.
**
** The sqlite3session_config() interface is not threadsafe. If it is invoked
** while any other thread is inside any other sessions method then the
** results are undefined. Furthermore, if it is invoked after any sessions
** related objects have been created, the results are also undefined. 
**
** The first argument to the sqlite3session_config() function must be one
** of the SQLITE_SESSION_CONFIG_XXX constants defined below. The 
** interpretation of the (void*) value passed as the second parameter and
** the effect of calling this function depends on the value of the first
** parameter.
**
** <dl>
** <dt>SQLITE_SESSION_CONFIG_STRMSIZE<dd>
**    By default, the sessions module streaming interfaces attempt to input
**    and output data in approximately 1 KiB chunks. This operand may be used
**    to set and query the value of this configuration setting. The pointer
**    passed as the second argument must point to a value of type (int).
**    If this value is greater than 0, it is used as the new streaming data
**    chunk size for both input and output. Before returning, the (int) value
**    pointed to by pArg is set to the final value of the streaming interface
**    chunk size.
** </dl>
**
** This function returns SQLITE_OK if successful, or an SQLite error code
** otherwise.
*/
SQLITE_API int sqlite3session_config(int op, void *pArg);

/*
** CAPI3REF: Values for sqlite3session_config().
*/
#define SQLITE_SESSION_CONFIG_STRMSIZE 1

/*
** Make sure we can call this stuff from C++.
*/
#if 0
}
#endif
................................................................................
};

/*
** A hash table for built-in function definitions.  (Application-defined
** functions use a regular table table from hash.h.)
**
** Hash each FuncDef structure into one of the FuncDefHash.a[] slots.
** Collisions are on the FuncDef.u.pHash chain.  Use the SQLITE_FUNC_HASH()
** macro to compute a hash on the function name.
*/
#define SQLITE_FUNC_HASH_SZ 23
struct FuncDefHash {
  FuncDef *a[SQLITE_FUNC_HASH_SZ];       /* Hash table for functions */
};
#define SQLITE_FUNC_HASH(C,L) (((C)+(L))%SQLITE_FUNC_HASH_SZ)

#ifdef SQLITE_USER_AUTHENTICATION
/*
** Information held in the "sqlite3" database connection object and used
** to manage user authentication.
*/
typedef struct sqlite3_userauth sqlite3_userauth;
................................................................................
  sqlite3_vfs *pVfs;            /* OS Interface */
  struct Vdbe *pVdbe;           /* List of active virtual machines */
  CollSeq *pDfltColl;           /* The default collating sequence (BINARY) */
  sqlite3_mutex *mutex;         /* Connection mutex */
  Db *aDb;                      /* All backends */
  int nDb;                      /* Number of backends currently in use */
  u32 mDbFlags;                 /* flags recording internal state */
  u64 flags;                    /* flags settable by pragmas. See below */
  i64 lastRowid;                /* ROWID of most recent insert (see above) */
  i64 szMmap;                   /* Default mmap_size setting */
  u32 nSchemaLock;              /* Do not reset the schema when non-zero */
  unsigned int openFlags;       /* Flags passed to sqlite3_vfs.xOpen() */
  int errCode;                  /* Most recent error code (SQLITE_*) */
  int errMask;                  /* & result codes with this before returning */
  int iSysErrno;                /* Errno value from last system error */
................................................................................
#define SQLITE_DeferFKs       0x00080000  /* Defer all FK constraints */
#define SQLITE_QueryOnly      0x00100000  /* Disable database changes */
#define SQLITE_CellSizeCk     0x00200000  /* Check btree cell sizes on load */
#define SQLITE_Fts3Tokenizer  0x00400000  /* Enable fts3_tokenizer(2) */
#define SQLITE_EnableQPSG     0x00800000  /* Query Planner Stability Guarantee*/
#define SQLITE_TriggerEQP     0x01000000  /* Show trigger EXPLAIN QUERY PLAN */
#define SQLITE_ResetDatabase  0x02000000  /* Reset the database */
#define SQLITE_LegacyAlter    0x04000000  /* Legacy ALTER TABLE behaviour */
#define SQLITE_NoSchemaError  0x08000000  /* Do not report schema parse errors*/
#define SQLITE_Defensive      0x10000000  /* Input SQL is likely hostile */

/* Flags used only if debugging */
#define HI(X)  ((u64)(X)<<32)
#ifdef SQLITE_DEBUG
#define SQLITE_SqlTrace       HI(0x0001)  /* Debug print SQL as it executes */
#define SQLITE_VdbeListing    HI(0x0002)  /* Debug listings of VDBE progs */
#define SQLITE_VdbeTrace      HI(0x0004)  /* True to trace VDBE execution */
#define SQLITE_VdbeAddopTrace HI(0x0008)  /* Trace sqlite3VdbeAddOp() calls */
#define SQLITE_VdbeEQP        HI(0x0010)  /* Debug EXPLAIN QUERY PLAN */
#endif

/*
** Allowed values for sqlite3.mDbFlags
*/
#define DBFLAG_SchemaChange   0x0001  /* Uncommitted Hash table changes */
#define DBFLAG_PreferBuiltin  0x0002  /* Preference to built-in funcs */
................................................................................
/*
** The schema for each SQL table and view is represented in memory
** by an instance of the following structure.
*/
struct Table {
  char *zName;         /* Name of the table or view */
  Column *aCol;        /* Information about each column */
#ifdef SQLITE_ENABLE_NORMALIZE
  Hash *pColHash;      /* All columns indexed by name */
#endif
  Index *pIndex;       /* List of SQL indexes on this table. */
  Select *pSelect;     /* NULL for tables.  Points to definition if a view. */
  FKey *pFKey;         /* Linked list of all foreign keys in this table */
  char *zColAff;       /* String defining the affinity of each column */
  ExprList *pCheck;    /* All CHECK constraints */
                       /*   ... also used as column name list in a VIEW */
  int tnum;            /* Root BTree page for this table */
................................................................................
#define TF_HasStat1        0x0010    /* nRowLogEst set from sqlite_stat1 */
#define TF_WithoutRowid    0x0020    /* No rowid.  PRIMARY KEY is the key */
#define TF_NoVisibleRowid  0x0040    /* No user-visible "rowid" column */
#define TF_OOOHidden       0x0080    /* Out-of-Order hidden columns */
#define TF_StatsUsed       0x0100    /* Query planner decisions affected by
                                     ** Index.aiRowLogEst[] values */
#define TF_HasNotNull      0x0200    /* Contains NOT NULL constraints */
#define TF_Shadow          0x0400    /* True for a shadow table */

/*
** Test to see whether or not a table is a virtual table.  This is
** done as a macro so that it will be optimized out when virtual
** table support is omitted from the build.
*/
#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
  void *p;          /* Pointer to sampled record */
  int n;            /* Size of record in bytes */
  tRowcnt *anEq;    /* Est. number of rows where the key equals this sample */
  tRowcnt *anLt;    /* Est. number of rows where key is less than this sample */
  tRowcnt *anDLt;   /* Est. number of distinct keys less than this sample */
};

/*
** Possible values to use within the flags argument to sqlite3GetToken().
*/
#define SQLITE_TOKEN_QUOTED    0x1 /* Token is a quoted identifier. */
#define SQLITE_TOKEN_KEYWORD   0x2 /* Token is a keyword. */

/*
** Each token coming out of the lexer is an instance of
** this structure.  Tokens are also used as part of an expression.
**
** The memory that "z" points to is owned by other objects.  Take care
** that the owner of the "z" string does not deallocate the string before
** the Token goes out of scope!  Very often, the "z" points to some place
................................................................................
                         ** TK_SELECT_COLUMN: column of the result vector */
  i16 iAgg;              /* Which entry in pAggInfo->aCol[] or ->aFunc[] */
  i16 iRightJoinTable;   /* If EP_FromJoin, the right table of the join */
  u8 op2;                /* TK_REGISTER: original value of Expr.op
                         ** TK_COLUMN: the value of p5 for OP_Column
                         ** TK_AGG_FUNCTION: nesting depth */
  AggInfo *pAggInfo;     /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */
  union {
    Table *pTab;           /* TK_COLUMN: Table containing column. Can be NULL
                           ** for a column of an index on an expression */
    Window *pWin;          /* TK_FUNCTION: Window definition for the func */
  } y;
};

/*
** The following are the meanings of bits in the Expr.flags field.
*/
#define EP_FromJoin  0x000001 /* Originates in ON/USING clause of outer join */
#define EP_Agg       0x000002 /* Contains one or more aggregate functions */
................................................................................
#define EP_NoReduce  0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
#define EP_Unlikely  0x040000 /* unlikely() or likelihood() function */
#define EP_ConstFunc 0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
#define EP_Subquery  0x200000 /* Tree contains a TK_SELECT operator */
#define EP_Alias     0x400000 /* Is an alias for a result set column */
#define EP_Leaf      0x800000 /* Expr.pLeft, .pRight, .u.pSelect all NULL */
#define EP_WinFunc  0x1000000 /* TK_FUNCTION with Expr.y.pWin set */

/*
** The EP_Propagate mask is a set of properties that automatically propagate
** upwards into parent nodes.
*/
#define EP_Propagate (EP_Collate|EP_Subquery|EP_HasFunc)

................................................................................
**    OPFLAG_SEEKEQ       == BTREE_SEEK_EQ
**    OPFLAG_FORDELETE    == BTREE_FORDELETE
**    OPFLAG_SAVEPOSITION == BTREE_SAVEPOSITION
**    OPFLAG_AUXDELETE    == BTREE_AUXDELETE
*/
#define OPFLAG_NCHANGE       0x01    /* OP_Insert: Set to update db->nChange */
                                     /* Also used in P2 (not P5) of OP_Delete */
#define OPFLAG_NOCHNG        0x01    /* OP_VColumn nochange for UPDATE */
#define OPFLAG_EPHEM         0x01    /* OP_Column: Ephemeral output is ok */
#define OPFLAG_LASTROWID     0x20    /* Set to update db->lastRowid */
#define OPFLAG_ISUPDATE      0x04    /* This OP_Insert is an sql UPDATE */
#define OPFLAG_APPEND        0x08    /* This is likely to be an append */
#define OPFLAG_USESEEKRESULT 0x10    /* Try to avoid a seek in BtreeInsert() */
#define OPFLAG_ISNOOP        0x40    /* OP_Delete does pre-update-hook only */
#define OPFLAG_LENGTHARG     0x40    /* OP_Column only used for length() */
................................................................................
SQLITE_PRIVATE int sqlite3IsIdChar(u8);

/*
** Internal function prototypes
*/
SQLITE_PRIVATE int sqlite3StrICmp(const char*,const char*);
SQLITE_PRIVATE int sqlite3Strlen30(const char*);
#define sqlite3Strlen30NN(C) (strlen(C)&0x3fffffff)
SQLITE_PRIVATE char *sqlite3ColumnType(Column*,char*);
#define sqlite3StrNICmp sqlite3_strnicmp

SQLITE_PRIVATE int sqlite3MallocInit(void);
SQLITE_PRIVATE void sqlite3MallocEnd(void);
SQLITE_PRIVATE void *sqlite3Malloc(u64);
SQLITE_PRIVATE void *sqlite3MallocZero(u64);
................................................................................
SQLITE_PRIVATE   void *sqlite3TestTextToPtr(const char*);
#endif

#if defined(SQLITE_DEBUG)
SQLITE_PRIVATE   void sqlite3TreeViewExpr(TreeView*, const Expr*, u8);
SQLITE_PRIVATE   void sqlite3TreeViewBareExprList(TreeView*, const ExprList*, const char*);
SQLITE_PRIVATE   void sqlite3TreeViewExprList(TreeView*, const ExprList*, u8, const char*);
SQLITE_PRIVATE   void sqlite3TreeViewSrcList(TreeView*, const SrcList*);
SQLITE_PRIVATE   void sqlite3TreeViewSelect(TreeView*, const Select*, u8);
SQLITE_PRIVATE   void sqlite3TreeViewWith(TreeView*, const With*, u8);
#ifndef SQLITE_OMIT_WINDOWFUNC
SQLITE_PRIVATE   void sqlite3TreeViewWindow(TreeView*, const Window*, u8);
SQLITE_PRIVATE   void sqlite3TreeViewWinFunc(TreeView*, const Window*, u8);
#endif
#endif
................................................................................
#ifdef SQLITE_ENABLE_CURSOR_HINTS
SQLITE_PRIVATE int sqlite3ExprContainsSubquery(Expr*);
#endif
SQLITE_PRIVATE int sqlite3ExprIsInteger(Expr*, int*);
SQLITE_PRIVATE int sqlite3ExprCanBeNull(const Expr*);
SQLITE_PRIVATE int sqlite3ExprNeedsNoAffinityChange(const Expr*, char);
SQLITE_PRIVATE int sqlite3IsRowid(const char*);
#ifdef SQLITE_ENABLE_NORMALIZE
SQLITE_PRIVATE int sqlite3IsRowidN(const char*, int);
#endif
SQLITE_PRIVATE void sqlite3GenerateRowDelete(
    Parse*,Table*,Trigger*,int,int,int,i16,u8,u8,u8,int);
SQLITE_PRIVATE void sqlite3GenerateRowIndexDelete(Parse*, Table*, int, int, int*, int);
SQLITE_PRIVATE int sqlite3GenerateIndexKey(Parse*, Index*, int, int, int, int*,Index*,int);
SQLITE_PRIVATE void sqlite3ResolvePartIdxLabel(Parse*,int);
SQLITE_PRIVATE int sqlite3ExprReferencesUpdatedColumn(Expr*,int*,int);
SQLITE_PRIVATE void sqlite3GenerateConstraintChecks(Parse*,Table*,int*,int,int,int,int,
                                     u8,u8,int,int*,int*,Upsert*);
#ifdef SQLITE_ENABLE_NULL_TRIM
SQLITE_PRIVATE   void sqlite3SetMakeRecordP5(Vdbe*,Table*);
#else
# define sqlite3SetMakeRecordP5(A,B)
#endif
................................................................................
SQLITE_PRIVATE void sqlite3UniqueConstraint(Parse*, int, Index*);
SQLITE_PRIVATE void sqlite3RowidConstraint(Parse*, int, Table*);
SQLITE_PRIVATE Expr *sqlite3ExprDup(sqlite3*,Expr*,int);
SQLITE_PRIVATE ExprList *sqlite3ExprListDup(sqlite3*,ExprList*,int);
SQLITE_PRIVATE SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int);
SQLITE_PRIVATE IdList *sqlite3IdListDup(sqlite3*,IdList*);
SQLITE_PRIVATE Select *sqlite3SelectDup(sqlite3*,Select*,int);
#ifdef SQLITE_ENABLE_NORMALIZE
SQLITE_PRIVATE FuncDef *sqlite3FunctionSearchN(int,const char*,int);
#endif
SQLITE_PRIVATE void sqlite3InsertBuiltinFuncs(FuncDef*,int);
SQLITE_PRIVATE FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,u8,u8);
SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(void);
SQLITE_PRIVATE void sqlite3RegisterDateTimeFunctions(void);
SQLITE_PRIVATE void sqlite3RegisterPerConnectionBuiltinFunctions(sqlite3*);
SQLITE_PRIVATE int sqlite3SafetyCheckOk(sqlite3*);
SQLITE_PRIVATE int sqlite3SafetyCheckSickOrOk(sqlite3*);
................................................................................
SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr);
SQLITE_PRIVATE CollSeq *sqlite3ExprNNCollSeq(Parse *pParse, Expr *pExpr);
SQLITE_PRIVATE int sqlite3ExprCollSeqMatch(Parse*,Expr*,Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*);
SQLITE_PRIVATE Expr *sqlite3ExprSkipCollate(Expr*);
SQLITE_PRIVATE int sqlite3CheckCollSeq(Parse *, CollSeq *);
SQLITE_PRIVATE int sqlite3WritableSchema(sqlite3*);
SQLITE_PRIVATE int sqlite3CheckObjectName(Parse *, const char *);
SQLITE_PRIVATE void sqlite3VdbeSetChanges(sqlite3 *, int);
SQLITE_PRIVATE int sqlite3AddInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3SubInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3MulInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3AbsInt32(int);
#ifdef SQLITE_ENABLE_8_3_NAMES
................................................................................
#endif
SQLITE_PRIVATE void sqlite3RootPageMoved(sqlite3*, int, int, int);
SQLITE_PRIVATE void sqlite3Reindex(Parse*, Token*, Token*);
SQLITE_PRIVATE void sqlite3AlterFunctions(void);
SQLITE_PRIVATE void sqlite3AlterRenameTable(Parse*, SrcList*, Token*);
SQLITE_PRIVATE void sqlite3AlterRenameColumn(Parse*, SrcList*, Token*, Token*);
SQLITE_PRIVATE int sqlite3GetToken(const unsigned char *, int *);
#ifdef SQLITE_ENABLE_NORMALIZE
SQLITE_PRIVATE int sqlite3GetTokenNormalized(const unsigned char *, int *, int *);
#endif
SQLITE_PRIVATE void sqlite3NestedParse(Parse*, const char*, ...);
SQLITE_PRIVATE void sqlite3ExpirePreparedStatements(sqlite3*, int);
SQLITE_PRIVATE int sqlite3CodeSubselect(Parse*, Expr *, int, int);
SQLITE_PRIVATE void sqlite3SelectPrep(Parse*, Select*, NameContext*);
SQLITE_PRIVATE void sqlite3SelectWrongNumTermsError(Parse *pParse, Select *p);
SQLITE_PRIVATE int sqlite3MatchSpanName(const char*, const char*, const char*, const char*);
SQLITE_PRIVATE int sqlite3ResolveExprNames(NameContext*, Expr*);
................................................................................
SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3*, int, const char *);
SQLITE_PRIVATE int sqlite3VtabBegin(sqlite3 *, VTable *);
SQLITE_PRIVATE FuncDef *sqlite3VtabOverloadFunction(sqlite3 *,FuncDef*, int nArg, Expr*);
SQLITE_PRIVATE sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context*);
SQLITE_PRIVATE int sqlite3VdbeParameterIndex(Vdbe*, const char*, int);
SQLITE_PRIVATE int sqlite3TransferBindings(sqlite3_stmt *, sqlite3_stmt *);
SQLITE_PRIVATE void sqlite3ParserReset(Parse*);
#ifdef SQLITE_ENABLE_NORMALIZE
SQLITE_PRIVATE void sqlite3Normalize(Vdbe*, const char*, int, u8);
#endif
SQLITE_PRIVATE int sqlite3Reprepare(Vdbe*);
SQLITE_PRIVATE void sqlite3ExprListCheckLength(Parse*, ExprList*, const char*);
SQLITE_PRIVATE CollSeq *sqlite3BinaryCompareCollSeq(Parse *, Expr *, Expr *);
SQLITE_PRIVATE int sqlite3TempInMemory(const sqlite3*);
SQLITE_PRIVATE const char *sqlite3JournalModename(int);
#ifndef SQLITE_OMIT_WAL
SQLITE_PRIVATE   int sqlite3Checkpoint(sqlite3*, int, int, int*, int*);
................................................................................
  bft usesStmtJournal:1;  /* True if uses a statement journal */
  bft readOnly:1;         /* True for statements that do not write */
  bft bIsReader:1;        /* True for statements that read */
  yDbMask btreeMask;      /* Bitmask of db->aDb[] entries referenced */
  yDbMask lockMask;       /* Subset of btreeMask that requires a lock */
  u32 aCounter[7];        /* Counters used by sqlite3_stmt_status() */
  char *zSql;             /* Text of the SQL statement that generated this */
#ifdef SQLITE_ENABLE_NORMALIZE
  char *zNormSql;         /* Normalization of the associated SQL statement */
#endif
  void *pFree;            /* Free this when deleting the vdbe */
  VdbeFrame *pFrame;      /* Parent frame */
  VdbeFrame *pDelFrame;   /* List of frame objects to free on VM reset */
  int nFrame;             /* Number of frames in pFrame list */
  u32 expmask;            /* Binding to these vars invalidates VM */
  SubProgram *pProgram;   /* Linked list of all sub-programs used by VM */
  AuxData *pAuxData;      /* Linked list of auxdata allocations */
................................................................................
      sqlite3TreeViewSelect(pView, pCte->pSelect, 0);
      sqlite3TreeViewPop(pView);
    }
    sqlite3TreeViewPop(pView);
  }
}

/*
** Generate a human-readable description of a SrcList object.
*/
SQLITE_PRIVATE void sqlite3TreeViewSrcList(TreeView *pView, const SrcList *pSrc){
  int i;
  for(i=0; i<pSrc->nSrc; i++){
    const struct SrcList_item *pItem = &pSrc->a[i];
    StrAccum x;
    char zLine[100];
    sqlite3StrAccumInit(&x, 0, zLine, sizeof(zLine), 0);
    sqlite3_str_appendf(&x, "{%d,*}", pItem->iCursor);
    if( pItem->zDatabase ){
      sqlite3_str_appendf(&x, " %s.%s", pItem->zDatabase, pItem->zName);
    }else if( pItem->zName ){
      sqlite3_str_appendf(&x, " %s", pItem->zName);
    }
    if( pItem->pTab ){
      sqlite3_str_appendf(&x, " tabname=%Q", pItem->pTab->zName);
    }
    if( pItem->zAlias ){
      sqlite3_str_appendf(&x, " (AS %s)", pItem->zAlias);
    }
    if( pItem->fg.jointype & JT_LEFT ){
      sqlite3_str_appendf(&x, " LEFT-JOIN");
    }
    sqlite3StrAccumFinish(&x);
    sqlite3TreeViewItem(pView, zLine, i<pSrc->nSrc-1); 
    if( pItem->pSelect ){
      sqlite3TreeViewSelect(pView, pItem->pSelect, 0);
    }
    if( pItem->fg.isTabFunc ){
      sqlite3TreeViewExprList(pView, pItem->u1.pFuncArg, 0, "func-args:");
    }
    sqlite3TreeViewPop(pView);
  }
}

/*
** Generate a human-readable description of a Select object.
*/
SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){
  int n = 0;
  int cnt = 0;
................................................................................
      for(pX=p->pWin; pX; pX=pX->pNextWin){
        sqlite3TreeViewWinFunc(pView, pX, pX->pNextWin!=0);
      }
      sqlite3TreeViewPop(pView);
    }
#endif
    if( p->pSrc && p->pSrc->nSrc ){

      pView = sqlite3TreeViewPush(pView, (n--)>0);
      sqlite3TreeViewLine(pView, "FROM");




























      sqlite3TreeViewSrcList(pView, p->pSrc);

      sqlite3TreeViewPop(pView);
    }
    if( p->pWhere ){
      sqlite3TreeViewItem(pView, "WHERE", (n--)>0);
      sqlite3TreeViewExpr(pView, p->pWhere, 0);
      sqlite3TreeViewPop(pView);
    }
................................................................................
      Window *pWin;
      if( ExprHasProperty(pExpr, EP_TokenOnly) ){
        pFarg = 0;
        pWin = 0;
      }else{
        pFarg = pExpr->x.pList;
#ifndef SQLITE_OMIT_WINDOWFUNC
        pWin = pExpr->y.pWin;
#else
        pWin = 0;
#endif 
      }
      if( pExpr->op==TK_AGG_FUNCTION ){
        sqlite3TreeViewLine(pView, "AGG_FUNCTION%d %Q",
                             pExpr->op2, pExpr->u.zToken);
................................................................................
    ** 0x9e3779b1 is 2654435761 which is the closest prime number to
    ** (2**32)*golden_ratio, where golden_ratio = (sqrt(5) - 1)/2. */
    h += sqlite3UpperToLower[c];
    h *= 0x9e3779b1;
  }
  return h;
}
#ifdef SQLITE_ENABLE_NORMALIZE
static unsigned int strHashN(const char *z, int n){
  unsigned int h = 0;
  int i;
  for(i=0; i<n; i++){
    /* Knuth multiplicative hashing.  (Sorting & Searching, p. 510).
    ** 0x9e3779b1 is 2654435761 which is the closest prime number to
    ** (2**32)*golden_ratio, where golden_ratio = (sqrt(5) - 1)/2. */
    h += sqlite3UpperToLower[z[i]];
    h *= 0x9e3779b1;
  }
  return h;
}
#endif /* SQLITE_ENABLE_NORMALIZE */


/* Link pNew element into the hash table pH.  If pEntry!=0 then also
** insert pNew into the pEntry hash bucket.
*/
static void insertElement(
  Hash *pH,              /* The complete hash table */
................................................................................
    if( sqlite3StrICmp(elem->pKey,pKey)==0 ){ 
      return elem;
    }
    elem = elem->next;
  }
  return &nullElement;
}
#ifdef SQLITE_ENABLE_NORMALIZE
static HashElem *findElementWithHashN(
  const Hash *pH,     /* The pH to be searched */
  const char *pKey,   /* The key we are searching for */
  int nKey,           /* Number of key bytes to use */
  unsigned int *pHash /* Write the hash value here */
){
  HashElem *elem;                /* Used to loop thru the element list */
  int count;                     /* Number of elements left to test */
  unsigned int h;                /* The computed hash */
  static HashElem nullElement = { 0, 0, 0, 0 };

  if( pH->ht ){   /*OPTIMIZATION-IF-TRUE*/
    struct _ht *pEntry;
    h = strHashN(pKey, nKey) % pH->htsize;
    pEntry = &pH->ht[h];
    elem = pEntry->chain;
    count = pEntry->count;
  }else{
    h = 0;
    elem = pH->first;
    count = pH->count;
  }
  if( pHash ) *pHash = h;
  while( count-- ){
    assert( elem!=0 );
    if( sqlite3StrNICmp(elem->pKey,pKey,nKey)==0 ){ 
      return elem;
    }
    elem = elem->next;
  }
  return &nullElement;
}
#endif /* SQLITE_ENABLE_NORMALIZE */

/* Remove a single entry from the hash table given a pointer to that
** element and a hash on the element's key.
*/
static void removeElementGivenHash(
  Hash *pH,         /* The pH containing "elem" */
  HashElem* elem,   /* The element to be removed from the pH */
................................................................................
** found, or NULL if there is no match.
*/
SQLITE_PRIVATE void *sqlite3HashFind(const Hash *pH, const char *pKey){
  assert( pH!=0 );
  assert( pKey!=0 );
  return findElementWithHash(pH, pKey, 0)->data;
}
#ifdef SQLITE_ENABLE_NORMALIZE
SQLITE_PRIVATE void *sqlite3HashFindN(const Hash *pH, const char *pKey, int nKey){
  assert( pH!=0 );
  assert( pKey!=0 );
  assert( nKey>=0 );
  return findElementWithHashN(pH, pKey, nKey, 0)->data;
}
#endif /* SQLITE_ENABLE_NORMALIZE */

/* Insert an element into the hash table pH.  The key is pKey
** and the data is "data".
**
** If no element exists with a matching key, then a new
** element is created and NULL is returned.
**
................................................................................

/*
** Allowed values of unixFile.fsFlags
*/
#define SQLITE_FSFLAGS_IS_MSDOS     0x1

/*
** If we are to be thread-safe, include the pthreads header.

*/
#if SQLITE_THREADSAFE
/* # include <pthread.h> */

#endif

/*
** Default permissions when creating a new file
*/
#ifndef SQLITE_DEFAULT_FILE_PERMISSIONS
# define SQLITE_DEFAULT_FILE_PERMISSIONS 0644
................................................................................
  { "lstat",         (sqlite3_syscall_ptr)lstat,          0 },
#else
  { "lstat",         (sqlite3_syscall_ptr)0,              0 },
#endif
#define osLstat      ((int(*)(const char*,struct stat*))aSyscall[27].pCurrent)

#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
# ifdef __ANDROID__
  { "ioctl", (sqlite3_syscall_ptr)(int(*)(int, int, ...))ioctl, 0 },
# else
  { "ioctl",         (sqlite3_syscall_ptr)ioctl,          0 },
# endif
#else
  { "ioctl",         (sqlite3_syscall_ptr)0,              0 },
#endif
#define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)

}; /* End of the overrideable system calls */

................................................................................
  /* WAS:  ino_t ino;   */
  u64 ino;                   /* Inode number */
#endif
};

/*
** An instance of the following structure is allocated for each open
** inode.

**
** A single inode can have multiple file descriptors, so each unixFile
** structure contains a pointer to an instance of this object and this
** object keeps a count of the number of unixFile pointing to it.
**
** Mutex rules:
**
................................................................................
  sem_t *pSem;                    /* Named POSIX semaphore */
  char aSemName[MAX_PATHNAME+2];  /* Name of that semaphore */
#endif
};

/*
** A lists of all unixInodeInfo objects.
**
** Must hold unixBigLock in order to read or write this variable.
*/
static unixInodeInfo *inodeList = 0;  /* All unixInodeInfo objects */

#ifdef SQLITE_DEBUG
/*
** True if the inode mutex (on the unixFile.pFileMutex field) is held, or not.
** This routine is used only within assert() to help verify correct mutex
** usage.
*/
int unixFileMutexHeld(unixFile *pFile){
  assert( pFile->pInode );
  return sqlite3_mutex_held(pFile->pInode->pLockMutex);
}
int unixFileMutexNotheld(unixFile *pFile){
  assert( pFile->pInode );
................................................................................
  }
  pInode->pUnused = 0;
}

/*
** Release a unixInodeInfo structure previously allocated by findInodeInfo().
**
** The global mutex must be held when this routine is called, but the mutex
** on the inode being deleted must NOT be held.
*/
static void releaseInodeInfo(unixFile *pFile){
  unixInodeInfo *pInode = pFile->pInode;
  assert( unixMutexHeld() );
  assert( unixFileMutexNotheld(pFile) );
  if( ALWAYS(pInode) ){
    pInode->nRef--;
................................................................................
}

/*
** Given a file descriptor, locate the unixInodeInfo object that
** describes that file descriptor.  Create a new one if necessary.  The
** return value might be uninitialized if an error occurs.
**
** The global mutex must held when calling this routine.

**
** Return an appropriate error code.
*/
static int findInodeInfo(
  unixFile *pFile,               /* Unix file with file desc used in the key */
  unixInodeInfo **ppInode        /* Return the unixInodeInfo object here */
){
................................................................................
  memset(&fileId, 0, sizeof(fileId));
  fileId.dev = statbuf.st_dev;
#if OS_VXWORKS
  fileId.pId = pFile->pId;
#else
  fileId.ino = (u64)statbuf.st_ino;
#endif
  assert( unixMutexHeld() );
  pInode = inodeList;
  while( pInode && memcmp(&fileId, &pInode->fileId, sizeof(fileId)) ){
    pInode = pInode->pNext;
  }
  if( pInode==0 ){
    pInode = sqlite3_malloc64( sizeof(*pInode) );
    if( pInode==0 ){
................................................................................
      pInode->pLockMutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
      if( pInode->pLockMutex==0 ){
        sqlite3_free(pInode);
        return SQLITE_NOMEM_BKPT;
      }
    }
    pInode->nRef = 1;
    assert( unixMutexHeld() );
    pInode->pNext = inodeList;
    pInode->pPrev = 0;
    if( inodeList ) inodeList->pPrev = pInode;
    inodeList = pInode;
  }else{
    pInode->nRef++;
  }
................................................................................
** unixMutexHeld() must be true when creating or destroying
** this object or while reading or writing the following fields:
**
**      nRef
**
** The following fields are read-only after the object is created:
** 
**      hShm
**      zFilename
**
** Either unixShmNode.pShmMutex must be held or unixShmNode.nRef==0 and
** unixMutexHeld() is true when reading or writing any other field
** in this structure.
*/
struct unixShmNode {
  unixInodeInfo *pInode;     /* unixInodeInfo that owns this SHM node */
  sqlite3_mutex *pShmMutex;  /* Mutex to access this object */
  char *zFilename;           /* Name of the mmapped file */
  int hShm;                  /* Open file descriptor */
  int szRegion;              /* Size of shared-memory regions */
  u16 nRegion;               /* Size of array apRegion */
  u8 isReadonly;             /* True if read-only */
  u8 isUnlocked;             /* True if no DMS lock held */
  char **apRegion;           /* Array of mapped shared-memory regions */
  int nRef;                  /* Number of unixShm objects pointing to this */
  unixShm *pFirst;           /* All unixShm objects pointing to this */
................................................................................
/*
** Structure used internally by this VFS to record the state of an
** open shared memory connection.
**
** The following fields are initialized when this object is created and
** are read-only thereafter:
**
**    unixShm.pShmNode
**    unixShm.id
**
** All other fields are read/write.  The unixShm.pShmNode->pShmMutex must
** be held while accessing any read/write fields.
*/
struct unixShm {
  unixShmNode *pShmNode;     /* The underlying unixShmNode object */
  unixShm *pNext;            /* Next unixShm with the same unixShmNode */
  u8 hasMutex;               /* True if holding the unixShmNode->pShmMutex */
  u8 id;                     /* Id of this connection within its unixShmNode */
  u16 sharedMask;            /* Mask of shared locks held */
  u16 exclMask;              /* Mask of exclusive locks held */
};

/*
** Constants used for locking
................................................................................
){
  unixShmNode *pShmNode; /* Apply locks to this open shared-memory segment */
  struct flock f;        /* The posix advisory locking structure */
  int rc = SQLITE_OK;    /* Result code form fcntl() */

  /* Access to the unixShmNode object is serialized by the caller */
  pShmNode = pFile->pInode->pShmNode;
  assert( pShmNode->nRef==0 || sqlite3_mutex_held(pShmNode->pShmMutex) );
  assert( pShmNode->nRef>0 || unixMutexHeld() );

  /* Shared locks never span more than one byte */
  assert( n==1 || lockType!=F_RDLCK );

  /* Locks are within range */
  assert( n>=1 && n<=SQLITE_SHM_NLOCK );

  if( pShmNode->hShm>=0 ){
    /* Initialize the locking parameters */
    f.l_type = lockType;
    f.l_whence = SEEK_SET;
    f.l_start = ofst;
    f.l_len = n;
    rc = osSetPosixAdvisoryLock(pShmNode->hShm, &f, pFile);
    rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY;
  }

  /* Update the global lock state and do debug tracing */
#ifdef SQLITE_DEBUG
  { u16 mask;
  OSTRACE(("SHM-LOCK "));
................................................................................
static void unixShmPurge(unixFile *pFd){
  unixShmNode *p = pFd->pInode->pShmNode;
  assert( unixMutexHeld() );
  if( p && ALWAYS(p->nRef==0) ){
    int nShmPerMap = unixShmRegionPerMap();
    int i;
    assert( p->pInode==pFd->pInode );
    sqlite3_mutex_free(p->pShmMutex);
    for(i=0; i<p->nRegion; i+=nShmPerMap){
      if( p->hShm>=0 ){
        osMunmap(p->apRegion[i], p->szRegion);
      }else{
        sqlite3_free(p->apRegion[i]);
      }
    }
    sqlite3_free(p->apRegion);
    if( p->hShm>=0 ){
      robust_close(pFd, p->hShm, __LINE__);
      p->hShm = -1;
    }
    p->pInode->pShmNode = 0;
    sqlite3_free(p);
  }
}

/*
................................................................................
  ** process might open and use the *-shm file without truncating it.
  ** And if the *-shm file has been corrupted by a power failure or
  ** system crash, the database itself may also become corrupt.  */
  lock.l_whence = SEEK_SET;
  lock.l_start = UNIX_SHM_DMS;
  lock.l_len = 1;
  lock.l_type = F_WRLCK;
  if( osFcntl(pShmNode->hShm, F_GETLK, &lock)!=0 ) {
    rc = SQLITE_IOERR_LOCK;
  }else if( lock.l_type==F_UNLCK ){
    if( pShmNode->isReadonly ){
      pShmNode->isUnlocked = 1;
      rc = SQLITE_READONLY_CANTINIT;
    }else{
      rc = unixShmSystemLock(pDbFd, F_WRLCK, UNIX_SHM_DMS, 1);
      /* The first connection to attach must truncate the -shm file.  We
      ** truncate to 3 bytes (an arbitrary small number, less than the
      ** -shm header size) rather than 0 as a system debugging aid, to
      ** help detect if a -shm file truncation is legitimate or is the work
      ** or a rogue process. */
      if( rc==SQLITE_OK && robust_ftruncate(pShmNode->hShm, 3) ){
        rc = unixLogError(SQLITE_IOERR_SHMOPEN,"ftruncate",pShmNode->zFilename);
      }
    }
  }else if( lock.l_type==F_WRLCK ){
    rc = SQLITE_BUSY;
  }

................................................................................
    sqlite3_snprintf(nShmFilename, zShm, 
                     SQLITE_SHM_DIRECTORY "/sqlite-shm-%x-%x",
                     (u32)sStat.st_ino, (u32)sStat.st_dev);
#else
    sqlite3_snprintf(nShmFilename, zShm, "%s-shm", zBasePath);
    sqlite3FileSuffix3(pDbFd->zPath, zShm);
#endif
    pShmNode->hShm = -1;
    pDbFd->pInode->pShmNode = pShmNode;
    pShmNode->pInode = pDbFd->pInode;
    if( sqlite3GlobalConfig.bCoreMutex ){
      pShmNode->pShmMutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST);
      if( pShmNode->pShmMutex==0 ){
        rc = SQLITE_NOMEM_BKPT;
        goto shm_open_err;
      }
    }

    if( pInode->bProcessLock==0 ){
      if( 0==sqlite3_uri_boolean(pDbFd->zPath, "readonly_shm", 0) ){
        pShmNode->hShm = robust_open(zShm, O_RDWR|O_CREAT,(sStat.st_mode&0777));
      }
      if( pShmNode->hShm<0 ){
        pShmNode->hShm = robust_open(zShm, O_RDONLY, (sStat.st_mode&0777));
        if( pShmNode->hShm<0 ){
          rc = unixLogError(SQLITE_CANTOPEN_BKPT, "open", zShm);
          goto shm_open_err;
        }
        pShmNode->isReadonly = 1;
      }

      /* If this process is running as root, make sure that the SHM file
      ** is owned by the same user that owns the original database.  Otherwise,
      ** the original owner will not be able to connect.
      */
      robustFchown(pShmNode->hShm, sStat.st_uid, sStat.st_gid);

      rc = unixLockSharedMemory(pDbFd, pShmNode);
      if( rc!=SQLITE_OK && rc!=SQLITE_READONLY_CANTINIT ) goto shm_open_err;
    }
  }

  /* Make the new connection a child of the unixShmNode */
................................................................................
  pDbFd->pShm = p;
  unixLeaveMutex();

  /* The reference count on pShmNode has already been incremented under
  ** the cover of the unixEnterMutex() mutex and the pointer from the
  ** new (struct unixShm) object to the pShmNode has been set. All that is
  ** left to do is to link the new object into the linked list starting
  ** at pShmNode->pFirst. This must be done while holding the
  ** pShmNode->pShmMutex.
  */
  sqlite3_mutex_enter(pShmNode->pShmMutex);
  p->pNext = pShmNode->pFirst;
  pShmNode->pFirst = p;
  sqlite3_mutex_leave(pShmNode->pShmMutex);
  return rc;

  /* Jump here on any error */
shm_open_err:
  unixShmPurge(pDbFd);       /* This call frees pShmNode if required */
  sqlite3_free(p);
  unixLeaveMutex();
................................................................................
  if( pDbFd->pShm==0 ){
    rc = unixOpenSharedMemory(pDbFd);
    if( rc!=SQLITE_OK ) return rc;
  }

  p = pDbFd->pShm;
  pShmNode = p->pShmNode;
  sqlite3_mutex_enter(pShmNode->pShmMutex);
  if( pShmNode->isUnlocked ){
    rc = unixLockSharedMemory(pDbFd, pShmNode);
    if( rc!=SQLITE_OK ) goto shmpage_out;
    pShmNode->isUnlocked = 0;
  }
  assert( szRegion==pShmNode->szRegion || pShmNode->nRegion==0 );
  assert( pShmNode->pInode==pDbFd->pInode );
  assert( pShmNode->hShm>=0 || pDbFd->pInode->bProcessLock==1 );
  assert( pShmNode->hShm<0 || pDbFd->pInode->bProcessLock==0 );

  /* Minimum number of regions required to be mapped. */
  nReqRegion = ((iRegion+nShmPerMap) / nShmPerMap) * nShmPerMap;

  if( pShmNode->nRegion<nReqRegion ){
    char **apNew;                      /* New apRegion[] array */
    int nByte = nReqRegion*szRegion;   /* Minimum required file size */
    struct stat sStat;                 /* Used by fstat() */

    pShmNode->szRegion = szRegion;

    if( pShmNode->hShm>=0 ){
      /* The requested region is not mapped into this processes address space.
      ** Check to see if it has been allocated (i.e. if the wal-index file is
      ** large enough to contain the requested region).
      */
      if( osFstat(pShmNode->hShm, &sStat) ){
        rc = SQLITE_IOERR_SHMSIZE;
        goto shmpage_out;
      }
  
      if( sStat.st_size<nByte ){
        /* The requested memory region does not exist. If bExtend is set to
        ** false, exit early. *pp will be set to NULL and SQLITE_OK returned.
................................................................................
          static const int pgsz = 4096;
          int iPg;

          /* Write to the last byte of each newly allocated or extended page */
          assert( (nByte % pgsz)==0 );
          for(iPg=(sStat.st_size/pgsz); iPg<(nByte/pgsz); iPg++){
            int x = 0;
            if( seekAndWriteFd(pShmNode->hShm, iPg*pgsz + pgsz-1,"",1,&x)!=1 ){
              const char *zFile = pShmNode->zFilename;
              rc = unixLogError(SQLITE_IOERR_SHMSIZE, "write", zFile);
              goto shmpage_out;
            }
          }
        }
      }
................................................................................
      goto shmpage_out;
    }
    pShmNode->apRegion = apNew;
    while( pShmNode->nRegion<nReqRegion ){
      int nMap = szRegion*nShmPerMap;
      int i;
      void *pMem;
      if( pShmNode->hShm>=0 ){
        pMem = osMmap(0, nMap,
            pShmNode->isReadonly ? PROT_READ : PROT_READ|PROT_WRITE, 
            MAP_SHARED, pShmNode->hShm, szRegion*(i64)pShmNode->nRegion
        );
        if( pMem==MAP_FAILED ){
          rc = unixLogError(SQLITE_IOERR_SHMMAP, "mmap", pShmNode->zFilename);
          goto shmpage_out;
        }
      }else{
        pMem = sqlite3_malloc64(nMap);
        if( pMem==0 ){
          rc = SQLITE_NOMEM_BKPT;
          goto shmpage_out;
        }
        memset(pMem, 0, nMap);
      }

      for(i=0; i<nShmPerMap; i++){
        pShmNode->apRegion[pShmNode->nRegion+i] = &((char*)pMem)[szRegion*i];
      }
      pShmNode->nRegion += nShmPerMap;
    }
................................................................................
shmpage_out:
  if( pShmNode->nRegion>iRegion ){
    *pp = pShmNode->apRegion[iRegion];
  }else{
    *pp = 0;
  }
  if( pShmNode->isReadonly && rc==SQLITE_OK ) rc = SQLITE_READONLY;
  sqlite3_mutex_leave(pShmNode->pShmMutex);
  return rc;
}

/*
** Change the lock state for a shared-memory segment.
**
** Note that the relationship between SHAREd and EXCLUSIVE locks is a little
................................................................................
  assert( ofst>=0 && ofst+n<=SQLITE_SHM_NLOCK );
  assert( n>=1 );
  assert( flags==(SQLITE_SHM_LOCK | SQLITE_SHM_SHARED)
       || flags==(SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE)
       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED)
       || flags==(SQLITE_SHM_UNLOCK | SQLITE_SHM_EXCLUSIVE) );
  assert( n==1 || (flags & SQLITE_SHM_EXCLUSIVE)!=0 );
  assert( pShmNode->hShm>=0 || pDbFd->pInode->bProcessLock==1 );
  assert( pShmNode->hShm<0 || pDbFd->pInode->bProcessLock==0 );

  mask = (1<<(ofst+n)) - (1<<ofst);
  assert( n>1 || mask==(1<<ofst) );
  sqlite3_mutex_enter(pShmNode->pShmMutex);
  if( flags & SQLITE_SHM_UNLOCK ){
    u16 allMask = 0; /* Mask of locks held by siblings */

    /* See if any siblings hold this same lock */
    for(pX=pShmNode->pFirst; pX; pX=pX->pNext){
      if( pX==p ) continue;
      assert( (pX->exclMask & (p->exclMask|p->sharedMask))==0 );
................................................................................
      rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n);
      if( rc==SQLITE_OK ){
        assert( (p->sharedMask & mask)==0 );
        p->exclMask |= mask;
      }
    }
  }
  sqlite3_mutex_leave(pShmNode->pShmMutex);
  OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n",
           p->id, osGetpid(0), p->sharedMask, p->exclMask));
  return rc;
}

/*
** Implement a memory barrier or memory fence on shared memory.  
................................................................................
  pShmNode = p->pShmNode;

  assert( pShmNode==pDbFd->pInode->pShmNode );
  assert( pShmNode->pInode==pDbFd->pInode );

  /* Remove connection p from the set of connections associated
  ** with pShmNode */
  sqlite3_mutex_enter(pShmNode->pShmMutex);
  for(pp=&pShmNode->pFirst; (*pp)!=p; pp = &(*pp)->pNext){}
  *pp = p->pNext;

  /* Free the connection p */
  sqlite3_free(p);
  pDbFd->pShm = 0;
  sqlite3_mutex_leave(pShmNode->pShmMutex);

  /* If pShmNode->nRef has reached 0, then close the underlying
  ** shared-memory file, too */
  assert( unixFileMutexNotheld(pDbFd) );
  unixEnterMutex();
  assert( pShmNode->nRef>0 );
  pShmNode->nRef--;
  if( pShmNode->nRef==0 ){
    if( deleteFlag && pShmNode->hShm>=0 ){
      osUnlink(pShmNode->zFilename);
    }
    unixShmPurge(pDbFd);
  }
  unixLeaveMutex();

  return SQLITE_OK;
................................................................................
**   such that p was added to the list more recently than p->pDirtyNext.
**   PCache.pDirty points to the first (newest) element in the list and
**   pDirtyTail to the last (oldest).
**
**   The PCache.pSynced variable is used to optimize searching for a dirty
**   page to eject from the cache mid-transaction. It is better to eject
**   a page that does not require a journal sync than one that does. 
**   Therefore, pSynced is maintained so that it *almost* always points
**   to either the oldest page in the pDirty/pDirtyTail list that has a
**   clear PGHDR_NEED_SYNC flag or to a page that is older than this one
**   (so that the right page to eject can be found by following pDirtyPrev
**   pointers).
*/
struct PCache {
  PgHdr *pDirty, *pDirtyTail;         /* List of dirty pages in LRU order */
................................................................................
SQLITE_PRIVATE void sqlite3PagerSetCodec(
  Pager *pPager,
  void *(*xCodec)(void*,void*,Pgno,int),
  void (*xCodecSizeChng)(void*,int,int),
  void (*xCodecFree)(void*),
  void *pCodec
){
  pager_reset(pPager);
  if( pPager->xCodecFree ) pPager->xCodecFree(pPager->pCodec);
  pPager->xCodec = pPager->memDb ? 0 : xCodec;
  pPager->xCodecSizeChng = xCodecSizeChng;
  pPager->xCodecFree = xCodecFree;
  pPager->pCodec = pCodec;
  setGetterMethod(pPager);
  pagerReportSize(pPager);
................................................................................
      pBt->usableSize = usableSize;
      pBt->pageSize = pageSize;
      freeTempSpace(pBt);
      rc = sqlite3PagerSetPagesize(pBt->pPager, &pBt->pageSize,
                                   pageSize-usableSize);
      return rc;
    }
    if( sqlite3WritableSchema(pBt->db)==0 && nPage>nPageFile ){
      rc = SQLITE_CORRUPT_BKPT;
      goto page1_init_failed;
    }
    /* EVIDENCE-OF: R-28312-64704 However, the usable size is not allowed to
    ** be less than 480. In other words, if the page size is 512, then the
    ** reserved space size cannot exceed 32. */
    if( usableSize<480 ){
................................................................................
  Pager *pPager = pBt->pPager;
  int rc;

  assert( eType==PTRMAP_OVERFLOW2 || eType==PTRMAP_OVERFLOW1 || 
      eType==PTRMAP_BTREE || eType==PTRMAP_ROOTPAGE );
  assert( sqlite3_mutex_held(pBt->mutex) );
  assert( pDbPage->pBt==pBt );
  if( iDbPage<3 ) return SQLITE_CORRUPT_BKPT;

  /* Move page iDbPage from its current location to page number iFreePage */
  TRACE(("AUTOVACUUM: Moving %d to free page %d (ptr page %d type %d)\n", 
      iDbPage, iFreePage, iPtrPage, eType));
  rc = sqlite3PagerMovepage(pPager, pDbPage->pDbPage, iFreePage, isCommit);
  if( rc!=SQLITE_OK ){
    return rc;
................................................................................
  */
  if( fg & MEM_Int ){
    sqlite3_snprintf(nByte, pMem->z, "%lld", pMem->u.i);
  }else{
    assert( fg & MEM_Real );
    sqlite3_snprintf(nByte, pMem->z, "%!.15g", pMem->u.r);
  }
  assert( pMem->z!=0 );
  pMem->n = sqlite3Strlen30NN(pMem->z);
  pMem->enc = SQLITE_UTF8;
  pMem->flags |= MEM_Str|MEM_Term;
  if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real);
  sqlite3VdbeChangeEncoding(pMem, enc);
  return SQLITE_OK;
}

................................................................................
  if( p==0 ) return;
  p->prepFlags = prepFlags;
  if( (prepFlags & SQLITE_PREPARE_SAVESQL)==0 ){
    p->expmask = 0;
  }
  assert( p->zSql==0 );
  p->zSql = sqlite3DbStrNDup(p->db, z, n);
#ifdef SQLITE_ENABLE_NORMALIZE
  assert( p->zNormSql==0 );
  if( p->zSql && (prepFlags & SQLITE_PREPARE_NORMALIZE)!=0 ){
    sqlite3Normalize(p, p->zSql, n, prepFlags);
    assert( p->zNormSql!=0 || p->db->mallocFailed );
  }
#endif
}

/*
** Swap all content between two VDBE structures.
*/
SQLITE_PRIVATE void sqlite3VdbeSwap(Vdbe *pA, Vdbe *pB){
  Vdbe tmp, *pTmp;
................................................................................
  pB->pNext = pTmp;
  pTmp = pA->pPrev;
  pA->pPrev = pB->pPrev;
  pB->pPrev = pTmp;
  zTmp = pA->zSql;
  pA->zSql = pB->zSql;
  pB->zSql = zTmp;
#ifdef SQLITE_ENABLE_NORMALIZE
  zTmp = pA->zNormSql;
  pA->zNormSql = pB->zNormSql;
  pB->zNormSql = zTmp;
#endif
  pB->expmask = pA->expmask;
  pB->prepFlags = pA->prepFlags;
  memcpy(pB->aCounter, pA->aCounter, sizeof(pB->aCounter));
  pB->aCounter[SQLITE_STMTSTATUS_REPREPARE]++;
}

/*
................................................................................
    releaseMemArray(p->aVar, p->nVar);
    sqlite3DbFree(db, p->pVList);
    sqlite3DbFree(db, p->pFree);
  }
  vdbeFreeOpArray(db, p->aOp, p->nOp);
  sqlite3DbFree(db, p->aColName);
  sqlite3DbFree(db, p->zSql);
#ifdef SQLITE_ENABLE_NORMALIZE
  sqlite3DbFree(db, p->zNormSql);
#endif
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
  {
    int i;
    for(i=0; i<p->nScan; i++){
      sqlite3DbFree(db, p->aScan[i].zName);
    }
    sqlite3DbFree(db, p->aScan);
................................................................................
    return rc;
  }

  /* The index entry must begin with a header size */
  (void)getVarint32((u8*)m.z, szHdr);
  testcase( szHdr==3 );
  testcase( szHdr==m.n );
  testcase( szHdr>0x7fffffff );
  assert( m.n>=0 );
  if( unlikely(szHdr<3 || szHdr>(unsigned)m.n) ){
    goto idx_rowid_corruption;
  }

  /* The last field of the index should be an integer - the ROWID.
  ** Verify that the last entry really is an integer. */
  (void)getVarint32((u8*)&m.z[szHdr-1], typeRowid);
  testcase( typeRowid==1 );
................................................................................
    z = sqlite3VdbeExpandSql(p, zSql);
    sqlite3_mutex_leave(p->db->mutex);
  }
  return z;
#endif
}

#ifdef SQLITE_ENABLE_NORMALIZE
/*
** Return the normalized SQL associated with a prepared statement.
*/
SQLITE_API const char *sqlite3_normalized_sql(sqlite3_stmt *pStmt){
  Vdbe *p = (Vdbe *)pStmt;
  return p ? p->zNormSql : 0;
}
#endif /* SQLITE_ENABLE_NORMALIZE */

#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/*
** Allocate and populate an UnpackedRecord structure based on the serialized
** record in nKey/pKey. Return a pointer to the new UnpackedRecord structure
** if successful, or a NULL pointer if an OOM error is encountered.
*/
static UnpackedRecord *vdbeUnpackRecord(
................................................................................
  }else{
    /* Rare case of a really large header */
    nVarint = sqlite3VarintLen(nHdr);
    nHdr += nVarint;
    if( nVarint<sqlite3VarintLen(nHdr) ) nHdr++;
  }
  nByte = nHdr+nData;




  /* Make sure the output register has a buffer large enough to store 
  ** the new record. The output register (pOp->p3) is not allowed to
  ** be one of the input registers (because the following call to
  ** sqlite3VdbeMemClearAndResize() could clobber the value before it is used).
  */
  if( nByte+nZero<=pOut->szMalloc ){
    /* The output register is already large enough to hold the record.
    ** No error checks or buffer enlargement is required */
    pOut->z = pOut->zMalloc;
  }else{
    /* Need to make sure that the output is not too big and then enlarge
    ** the output register to hold the full result */
    if( nByte+nZero>db->aLimit[SQLITE_LIMIT_LENGTH] ){
      goto too_big;
    }
    if( sqlite3VdbeMemClearAndResize(pOut, (int)nByte) ){
      goto no_mem;
    }
  }
  zNewRecord = (u8 *)pOut->z;

  /* Write the record */
  i = putVarint32(zNewRecord, nHdr);
  j = nHdr;
  assert( pData0<=pLast );
................................................................................
    db->mDbFlags |= DBFLAG_SchemaChange;
    p->expired = 0;
  }else
#endif
  {
    zMaster = MASTER_NAME;
    initData.db = db;
    initData.iDb = iDb;
    initData.pzErrMsg = &p->zErrMsg;
    initData.mInitFlags = 0;
    zSql = sqlite3MPrintf(db,
       "SELECT name, rootpage, sql FROM '%q'.%s WHERE %s ORDER BY rowid",
       db->aDb[iDb].zDbSName, zMaster, pOp->p4.z);
    if( zSql==0 ){
      rc = SQLITE_NOMEM_BKPT;
................................................................................
** Synopsis: r[P3]=vcolumn(P2)
**
** Store in register P3 the value of the P2-th column of
** the current row of the virtual-table of cursor P1.
**
** If the VColumn opcode is being used to fetch the value of
** an unchanging column during an UPDATE operation, then the P5
** value is OPFLAG_NOCHNG.  This will cause the sqlite3_vtab_nochange()
** function to return true inside the xColumn method of the virtual
** table implementation.  The P5 column might also contain other
** bits (OPFLAG_LENGTHARG or OPFLAG_TYPEOFARG) but those bits are
** unused by OP_VColumn.
*/
case OP_VColumn: {
  sqlite3_vtab *pVtab;
  const sqlite3_module *pModule;
  Mem *pDest;
  sqlite3_context sContext;

................................................................................
    break;
  }
  pVtab = pCur->uc.pVCur->pVtab;
  pModule = pVtab->pModule;
  assert( pModule->xColumn );
  memset(&sContext, 0, sizeof(sContext));
  sContext.pOut = pDest;
  testcase( (pOp->p5 & OPFLAG_NOCHNG)==0 && pOp->p5!=0 );
  if( pOp->p5 & OPFLAG_NOCHNG ){
    sqlite3VdbeMemSetNull(pDest);
    pDest->flags = MEM_Null|MEM_Zero;
    pDest->u.nZero = 0;
  }else{
    MemSetTypeFlag(pDest, MEM_Null);
  }
  rc = pModule->xColumn(pCur->uc.pVCur, &sContext, pOp->p2);
................................................................................
** P4 is a pointer to a virtual table object, an sqlite3_vtab structure.
** This opcode invokes the corresponding xRename method. The value
** in register P1 is passed as the zName argument to the xRename method.
*/
case OP_VRename: {
  sqlite3_vtab *pVtab;
  Mem *pName;
  int isLegacy;
  
  isLegacy = (db->flags & SQLITE_LegacyAlter);
  db->flags |= SQLITE_LegacyAlter;
  pVtab = pOp->p4.pVtab->pVtab;
  pName = &aMem[pOp->p1];
  assert( pVtab->pModule->xRename );
  assert( memIsValid(pName) );
  assert( p->readOnly==0 );
  REGISTER_TRACE(pOp->p1, pName);
  assert( pName->flags & MEM_Str );
  testcase( pName->enc==SQLITE_UTF8 );
  testcase( pName->enc==SQLITE_UTF16BE );
  testcase( pName->enc==SQLITE_UTF16LE );
  rc = sqlite3VdbeChangeEncoding(pName, SQLITE_UTF8);
  if( rc ) goto abort_due_to_error;
  rc = pVtab->pModule->xRename(pVtab, pName->z);
  if( isLegacy==0 ) db->flags &= ~SQLITE_LegacyAlter;
  sqlite3VtabImportErrmsg(p, pVtab);
  p->expired = 0;
  if( rc ) goto abort_due_to_error;
  break;
}
#endif

................................................................................
        continue;
      }else if( ExprHasProperty(pExpr, EP_xIsSelect) ){
        if( sqlite3WalkSelect(pWalker, pExpr->x.pSelect) ) return WRC_Abort;
      }else if( pExpr->x.pList ){
        if( sqlite3WalkExprList(pWalker, pExpr->x.pList) ) return WRC_Abort;
      }
#ifndef SQLITE_OMIT_WINDOWFUNC
      if( ExprHasProperty(pExpr, EP_WinFunc) ){
        Window *pWin = pExpr->y.pWin;
        if( sqlite3WalkExprList(pWalker, pWin->pPartition) ) return WRC_Abort;
        if( sqlite3WalkExprList(pWalker, pWin->pOrderBy) ) return WRC_Abort;
        if( sqlite3WalkExpr(pWalker, pWin->pFilter) ) return WRC_Abort;
      }
#endif
    }
    break;
................................................................................
** expression node refer back to that source column.  The following changes
** are made to pExpr:
**
**    pExpr->iDb           Set the index in db->aDb[] of the database X
**                         (even if X is implied).
**    pExpr->iTable        Set to the cursor number for the table obtained
**                         from pSrcList.
**    pExpr->y.pTab        Points to the Table structure of X.Y (even if
**                         X and/or Y are implied.)
**    pExpr->iColumn       Set to the column number within the table.
**    pExpr->op            Set to TK_COLUMN.
**    pExpr->pLeft         Any expression this points to is deleted
**    pExpr->pRight        Any expression this points to is deleted.
**
** The zDb variable is the name of the database (the "X").  This value may be
................................................................................

  assert( pNC );     /* the name context cannot be NULL. */
  assert( zCol );    /* The Z in X.Y.Z cannot be NULL */
  assert( !ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced) );

  /* Initialize the node to no-match */
  pExpr->iTable = -1;

  ExprSetVVAProperty(pExpr, EP_NoReduce);

  /* Translate the schema name in zDb into a pointer to the corresponding
  ** schema.  If not found, pSchema will remain NULL and nothing will match
  ** resulting in an appropriate error message toward the end of this routine
  */
  if( zDb ){
................................................................................
        if( zTab ){
          const char *zTabName = pItem->zAlias ? pItem->zAlias : pTab->zName;
          assert( zTabName!=0 );
          if( sqlite3StrICmp(zTabName, zTab)!=0 ){
            continue;
          }
          if( IN_RENAME_OBJECT && pItem->zAlias ){
            sqlite3RenameTokenRemap(pParse, 0, (void*)&pExpr->y.pTab);
          }
        }
        if( 0==(cntTab++) ){
          pMatch = pItem;
        }
        for(j=0, pCol=pTab->aCol; j<pTab->nCol; j++, pCol++){
          if( sqlite3StrICmp(pCol->zName, zCol)==0 ){
................................................................................
            pExpr->iColumn = j==pTab->iPKey ? -1 : (i16)j;
            break;
          }
        }
      }
      if( pMatch ){
        pExpr->iTable = pMatch->iCursor;
        pExpr->y.pTab = pMatch->pTab;
        /* RIGHT JOIN not (yet) supported */
        assert( (pMatch->fg.jointype & JT_RIGHT)==0 );
        if( (pMatch->fg.jointype & JT_LEFT)!=0 ){
          ExprSetProperty(pExpr, EP_CanBeNull);
        }
        pSchema = pExpr->y.pTab->pSchema;
      }
    } /* if( pSrcList ) */

#if !defined(SQLITE_OMIT_TRIGGER) || !defined(SQLITE_OMIT_UPSERT)
    /* If we have not already resolved the name, then maybe 
    ** it is a new.* or old.* trigger argument reference.  Or
    ** maybe it is an excluded.* from an upsert.
................................................................................
        if( iCol<pTab->nCol ){
          cnt++;
#ifndef SQLITE_OMIT_UPSERT
          if( pExpr->iTable==2 ){
            testcase( iCol==(-1) );
            if( IN_RENAME_OBJECT ){
              pExpr->iColumn = iCol;
              pExpr->y.pTab = pTab;
              eNewExprOp = TK_COLUMN;
            }else{
              pExpr->iTable = pNC->uNC.pUpsert->regData + iCol;
              eNewExprOp = TK_REGISTER;
              ExprSetProperty(pExpr, EP_Alias);
            }
          }else
................................................................................
              testcase( iCol==32 );
              pParse->oldmask |= (iCol>=32 ? 0xffffffff : (((u32)1)<<iCol));
            }else{
              testcase( iCol==31 );
              testcase( iCol==32 );
              pParse->newmask |= (iCol>=32 ? 0xffffffff : (((u32)1)<<iCol));
            }
            pExpr->y.pTab = pTab;
            pExpr->iColumn = (i16)iCol;
            eNewExprOp = TK_TRIGGER;
#endif /* SQLITE_OMIT_TRIGGER */
          }
        }
      }
    }
................................................................................
  ** Because no reference was made to outer contexts, the pNC->nRef
  ** fields are not changed in any context.
  */
  if( cnt==0 && zTab==0 ){
    assert( pExpr->op==TK_ID );
    if( ExprHasProperty(pExpr,EP_DblQuoted) ){
      pExpr->op = TK_STRING;
      pExpr->y.pTab = 0;
      return WRC_Prune;
    }
    if( sqlite3ExprIdToTrueFalse(pExpr) ){
      return WRC_Prune;
    }
  }

................................................................................
** Allocate and return a pointer to an expression to load the column iCol
** from datasource iSrc in SrcList pSrc.
*/
SQLITE_PRIVATE Expr *sqlite3CreateColumnExpr(sqlite3 *db, SrcList *pSrc, int iSrc, int iCol){
  Expr *p = sqlite3ExprAlloc(db, TK_COLUMN, 0, 0);
  if( p ){
    struct SrcList_item *pItem = &pSrc->a[iSrc];
    p->y.pTab = pItem->pTab;
    p->iTable = pItem->iCursor;
    if( p->y.pTab->iPKey==iCol ){
      p->iColumn = -1;
    }else{
      p->iColumn = (ynVar)iCol;
      testcase( iCol==BMS );
      testcase( iCol==BMS-1 );
      pItem->colUsed |= ((Bitmask)1)<<(iCol>=BMS ? BMS-1 : iCol);
    }
................................................................................
    case TK_ROW: {
      SrcList *pSrcList = pNC->pSrcList;
      struct SrcList_item *pItem;
      assert( pSrcList && pSrcList->nSrc==1 );
      pItem = pSrcList->a;
      assert( HasRowid(pItem->pTab) && pItem->pTab->pSelect==0 );
      pExpr->op = TK_COLUMN;
      pExpr->y.pTab = pItem->pTab;
      pExpr->iTable = pItem->iCursor;
      pExpr->iColumn = -1;
      pExpr->affinity = SQLITE_AFF_INTEGER;
      break;
    }
#endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT)
          && !defined(SQLITE_OMIT_SUBQUERY) */
................................................................................
          pLeft = pRight->pLeft;
          pRight = pRight->pRight;
        }
        zTable = pLeft->u.zToken;
        zColumn = pRight->u.zToken;
        if( IN_RENAME_OBJECT ){
          sqlite3RenameTokenRemap(pParse, (void*)pExpr, (void*)pRight);


          sqlite3RenameTokenRemap(pParse, (void*)&pExpr->y.pTab, (void*)pLeft);
        }
      }
      return lookupName(pParse, zDb, zTable, zColumn, pNC, pExpr);
    }

    /* Resolve function names
    */
................................................................................

      if( 0==IN_RENAME_OBJECT ){
#ifndef SQLITE_OMIT_WINDOWFUNC
        assert( is_agg==0 || (pDef->funcFlags & SQLITE_FUNC_MINMAX)
          || (pDef->xValue==0 && pDef->xInverse==0)
          || (pDef->xValue && pDef->xInverse && pDef->xSFunc && pDef->xFinalize)
        );
        if( pDef && pDef->xValue==0 && ExprHasProperty(pExpr, EP_WinFunc) ){
          sqlite3ErrorMsg(pParse, 
              "%.*s() may not be used as a window function", nId, zId
          );
          pNC->nErr++;
        }else if( 
              (is_agg && (pNC->ncFlags & NC_AllowAgg)==0)
           || (is_agg && (pDef->funcFlags&SQLITE_FUNC_WINDOW) && !pExpr->y.pWin)
           || (is_agg && pExpr->y.pWin && (pNC->ncFlags & NC_AllowWin)==0)
        ){
          const char *zType;
          if( (pDef->funcFlags & SQLITE_FUNC_WINDOW) || pExpr->y.pWin ){
            zType = "window";
          }else{
            zType = "aggregate";
          }
          sqlite3ErrorMsg(pParse, "misuse of %s function %.*s()",zType,nId,zId);
          pNC->nErr++;
          is_agg = 0;
................................................................................
        }else if( wrong_num_args ){
          sqlite3ErrorMsg(pParse,"wrong number of arguments to function %.*s()",
               nId, zId);
          pNC->nErr++;
        }
        if( is_agg ){
#ifndef SQLITE_OMIT_WINDOWFUNC
          pNC->ncFlags &= ~(pExpr->y.pWin ? NC_AllowWin : NC_AllowAgg);
#else
          pNC->ncFlags &= ~NC_AllowAgg;
#endif
        }
      }
      sqlite3WalkExprList(pWalker, pList);
      if( is_agg ){
#ifndef SQLITE_OMIT_WINDOWFUNC
        if( pExpr->y.pWin ){
          Select *pSel = pNC->pWinSelect;
          sqlite3WalkExprList(pWalker, pExpr->y.pWin->pPartition);
          sqlite3WalkExprList(pWalker, pExpr->y.pWin->pOrderBy);
          sqlite3WalkExpr(pWalker, pExpr->y.pWin->pFilter);
          sqlite3WindowUpdate(pParse, pSel->pWinDefn, pExpr->y.pWin, pDef);
          if( 0==pSel->pWin 
           || 0==sqlite3WindowCompare(pParse, pSel->pWin, pExpr->y.pWin) 
          ){
            pExpr->y.pWin->pNextWin = pSel->pWin;
            pSel->pWin = pExpr->y.pWin;
          }
          pNC->ncFlags |= NC_AllowWin;
        }else
#endif /* SQLITE_OMIT_WINDOWFUNC */
        {
          NameContext *pNC2 = pNC;
          pExpr->op = TK_AGG_FUNCTION;
................................................................................
    pItem->u.x.iOrderByCol = 0;
    if( sqlite3ResolveExprNames(pNC, pE) ){
      return 1;
    }
    for(j=0; j<pSelect->pEList->nExpr; j++){
      if( sqlite3ExprCompare(0, pE, pSelect->pEList->a[j].pExpr, -1)==0 ){
#ifndef SQLITE_OMIT_WINDOWFUNC
        if( ExprHasProperty(pE, EP_WinFunc) ){
          /* Since this window function is being changed into a reference
          ** to the same window function the result set, remove the instance
          ** of this window function from the Select.pWin list. */
          Window **pp;
          for(pp=&pSelect->pWin; *pp; pp=&(*pp)->pNextWin){
            if( *pp==pE->y.pWin ){
              *pp = (*pp)->pNextWin;
            }    
          }
        }
#endif
        pItem->u.x.iOrderByCol = j+1;
      }
................................................................................
  if( op==TK_REGISTER ) op = pExpr->op2;
#ifndef SQLITE_OMIT_CAST
  if( op==TK_CAST ){
    assert( !ExprHasProperty(pExpr, EP_IntValue) );
    return sqlite3AffinityType(pExpr->u.zToken, 0);
  }
#endif
  if( (op==TK_AGG_COLUMN || op==TK_COLUMN) && pExpr->y.pTab ){
    return sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
  }
  if( op==TK_SELECT_COLUMN ){
    assert( pExpr->pLeft->flags&EP_xIsSelect );
    return sqlite3ExprAffinity(
        pExpr->pLeft->x.pSelect->pEList->a[pExpr->iColumn].pExpr
    );
  }
................................................................................
  CollSeq *pColl = 0;
  Expr *p = pExpr;
  while( p ){
    int op = p->op;
    if( p->flags & EP_Generic ) break;
    if( (op==TK_AGG_COLUMN || op==TK_COLUMN
          || op==TK_REGISTER || op==TK_TRIGGER)
     && p->y.pTab!=0
    ){
      /* op==TK_REGISTER && p->y.pTab!=0 happens when pExpr was originally
      ** a TK_COLUMN but was previously evaluated and cached in a register */
      int j = p->iColumn;
      if( j>=0 ){
        const char *zColl = p->y.pTab->aCol[j].zColl;
        pColl = sqlite3FindCollSeq(db, ENC(db), zColl, 0);
      }
      break;
    }
    if( op==TK_CAST || op==TK_UPLUS ){
      p = p->pLeft;
      continue;
................................................................................
/*
** Recursively delete an expression tree.
*/
static SQLITE_NOINLINE void sqlite3ExprDeleteNN(sqlite3 *db, Expr *p){
  assert( p!=0 );
  /* Sanity check: Assert that the IntValue is non-negative if it exists */
  assert( !ExprHasProperty(p, EP_IntValue) || p->u.iValue>=0 );

  assert( !ExprHasProperty(p, EP_WinFunc) || p->y.pWin!=0 || db->mallocFailed );
  assert( p->op!=TK_FUNCTION || ExprHasProperty(p, EP_TokenOnly|EP_Reduced)
          || p->y.pWin==0 || ExprHasProperty(p, EP_WinFunc) );
#ifdef SQLITE_DEBUG
  if( ExprHasProperty(p, EP_Leaf) && !ExprHasProperty(p, EP_TokenOnly) ){
    assert( p->pLeft==0 );
    assert( p->pRight==0 );
    assert( p->x.pSelect==0 );
  }
#endif
................................................................................
    if( p->pRight ){
      sqlite3ExprDeleteNN(db, p->pRight);
    }else if( ExprHasProperty(p, EP_xIsSelect) ){
      sqlite3SelectDelete(db, p->x.pSelect);
    }else{
      sqlite3ExprListDelete(db, p->x.pList);
    }
    if( ExprHasProperty(p, EP_WinFunc) ){
      assert( p->op==TK_FUNCTION );
      sqlite3WindowDelete(db, p->y.pWin);
    }
  }
  if( ExprHasProperty(p, EP_MemToken) ) sqlite3DbFree(db, p->u.zToken);
  if( !ExprHasProperty(p, EP_Static) ){
    sqlite3DbFreeNN(db, p);
  }
}
................................................................................
static int dupedExprStructSize(Expr *p, int flags){
  int nSize;
  assert( flags==EXPRDUP_REDUCE || flags==0 ); /* Only one flag value allowed */
  assert( EXPR_FULLSIZE<=0xfff );
  assert( (0xfff & (EP_Reduced|EP_TokenOnly))==0 );
  if( 0==flags || p->op==TK_SELECT_COLUMN 
#ifndef SQLITE_OMIT_WINDOWFUNC
   || ExprHasProperty(p, EP_WinFunc)
#endif
  ){
    nSize = EXPR_FULLSIZE;
  }else{
    assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) );
    assert( !ExprHasProperty(p, EP_FromJoin) ); 
    assert( !ExprHasProperty(p, EP_MemToken) );
................................................................................
** This function returns the space in bytes required to store the copy 
** of the Expr structure and a copy of the Expr.u.zToken string (if that
** string is defined.)
*/
static int dupedExprNodeSize(Expr *p, int flags){
  int nByte = dupedExprStructSize(p, flags) & 0xfff;
  if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){
    nByte += sqlite3Strlen30NN(p->u.zToken)+1;
  }
  return ROUND8(nByte);
}

/*
** Return the number of bytes required to create a duplicate of the 
** expression passed as the first argument. The second argument is a
................................................................................
        pNew->x.pSelect = sqlite3SelectDup(db, p->x.pSelect, dupFlags);
      }else{
        pNew->x.pList = sqlite3ExprListDup(db, p->x.pList, dupFlags);
      }
    }

    /* Fill in pNew->pLeft and pNew->pRight. */
    if( ExprHasProperty(pNew, EP_Reduced|EP_TokenOnly|EP_WinFunc) ){
      zAlloc += dupedExprNodeSize(p, dupFlags);
      if( !ExprHasProperty(pNew, EP_TokenOnly|EP_Leaf) ){
        pNew->pLeft = p->pLeft ?
                      exprDup(db, p->pLeft, EXPRDUP_REDUCE, &zAlloc) : 0;
        pNew->pRight = p->pRight ?
                       exprDup(db, p->pRight, EXPRDUP_REDUCE, &zAlloc) : 0;
      }
#ifndef SQLITE_OMIT_WINDOWFUNC
      if( ExprHasProperty(p, EP_WinFunc) ){
        pNew->y.pWin = sqlite3WindowDup(db, pNew, p->y.pWin);
        assert( ExprHasProperty(pNew, EP_WinFunc) );
      }
#endif /* SQLITE_OMIT_WINDOWFUNC */
      if( pzBuffer ){
        *pzBuffer = zAlloc;
      }
    }else{







      if( !ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){
        if( pNew->op==TK_SELECT_COLUMN ){
          pNew->pLeft = p->pLeft;
          assert( p->iColumn==0 || p->pRight==0 );
          assert( p->pRight==0  || p->pRight==p->pLeft );
        }else{
          pNew->pLeft = sqlite3ExprDup(db, p->pLeft, 0);
................................................................................
    case TK_INTEGER:
    case TK_STRING:
    case TK_FLOAT:
    case TK_BLOB:
      return 0;
    case TK_COLUMN:
      return ExprHasProperty(p, EP_CanBeNull) ||
             p->y.pTab==0 ||  /* Reference to column of index on expression */
             (p->iColumn>=0 && p->y.pTab->aCol[p->iColumn].notNull==0);
    default:
      return 1;
  }
}

/*
** Return TRUE if the given expression is a constant which would be
................................................................................
*/
SQLITE_PRIVATE int sqlite3IsRowid(const char *z){
  if( sqlite3StrICmp(z, "_ROWID_")==0 ) return 1;
  if( sqlite3StrICmp(z, "ROWID")==0 ) return 1;
  if( sqlite3StrICmp(z, "OID")==0 ) return 1;
  return 0;
}
#ifdef SQLITE_ENABLE_NORMALIZE
SQLITE_PRIVATE int sqlite3IsRowidN(const char *z, int n){
  if( sqlite3StrNICmp(z, "_ROWID_", n)==0 ) return 1;
  if( sqlite3StrNICmp(z, "ROWID", n)==0 ) return 1;
  if( sqlite3StrNICmp(z, "OID", n)==0 ) return 1;
  return 0;
}
#endif

/*
** pX is the RHS of an IN operator.  If pX is a SELECT statement 
** that can be simplified to a direct table access, then return
** a pointer to the SELECT statement.  If pX is not a SELECT statement,
** or if the SELECT statement needs to be manifested into a transient
** table, then return NULL.
................................................................................
        /* This COLUMN expression is really a constant due to WHERE clause
        ** constraints, and that constant is coded by the pExpr->pLeft
        ** expresssion.  However, make sure the constant has the correct
        ** datatype by applying the Affinity of the table column to the
        ** constant.
        */
        int iReg = sqlite3ExprCodeTarget(pParse, pExpr->pLeft,target);
        int aff = sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
        if( aff!=SQLITE_AFF_BLOB ){
          static const char zAff[] = "B\000C\000D\000E";
          assert( SQLITE_AFF_BLOB=='A' );
          assert( SQLITE_AFF_TEXT=='B' );
          if( iReg!=target ){
            sqlite3VdbeAddOp2(v, OP_SCopy, iReg, target);
            iReg = target;
................................................................................
          return pExpr->iColumn - pParse->iSelfTab;
        }else{
          /* Coding an expression that is part of an index where column names
          ** in the index refer to the table to which the index belongs */
          iTab = pParse->iSelfTab - 1;
        }
      }
      return sqlite3ExprCodeGetColumn(pParse, pExpr->y.pTab,
                               pExpr->iColumn, iTab, target,
                               pExpr->op2);
    }
    case TK_INTEGER: {
      codeInteger(pParse, pExpr, 0, target);
      return target;
    }
................................................................................
      u32 constMask = 0;     /* Mask of function arguments that are constant */
      int i;                 /* Loop counter */
      sqlite3 *db = pParse->db;  /* The database connection */
      u8 enc = ENC(db);      /* The text encoding used by this database */
      CollSeq *pColl = 0;    /* A collating sequence */

#ifndef SQLITE_OMIT_WINDOWFUNC
      if( ExprHasProperty(pExpr, EP_WinFunc) ){
        return pExpr->y.pWin->regResult;
      }
#endif

      if( ConstFactorOk(pParse) && sqlite3ExprIsConstantNotJoin(pExpr) ){
        /* SQL functions can be expensive. So try to move constant functions
        ** out of the inner loop, even if that means an extra OP_Copy. */
        return sqlite3ExprCodeAtInit(pParse, pExpr, -1);
................................................................................
      **
      ** Then p1 is interpreted as follows:
      **
      **   p1==0   ->    old.rowid     p1==3   ->    new.rowid
      **   p1==1   ->    old.a         p1==4   ->    new.a
      **   p1==2   ->    old.b         p1==5   ->    new.b       
      */
      Table *pTab = pExpr->y.pTab;
      int p1 = pExpr->iTable * (pTab->nCol+1) + 1 + pExpr->iColumn;

      assert( pExpr->iTable==0 || pExpr->iTable==1 );
      assert( pExpr->iColumn>=-1 && pExpr->iColumn<pTab->nCol );
      assert( pTab->iPKey<0 || pExpr->iColumn!=pTab->iPKey );
      assert( p1>=0 && p1<(pTab->nCol*2+2) );

      sqlite3VdbeAddOp2(v, OP_Param, p1, target);
      VdbeComment((v, "r[%d]=%s.%s", target,
        (pExpr->iTable ? "new" : "old"),
        (pExpr->iColumn<0 ? "rowid" : pExpr->y.pTab->aCol[pExpr->iColumn].zName)
      ));

#ifndef SQLITE_OMIT_FLOATING_POINT
      /* If the column has REAL affinity, it may currently be stored as an
      ** integer. Use OP_RealAffinity to make sure it is really real.
      **
      ** EVIDENCE-OF: R-60985-57662 SQLite will convert the value back to
................................................................................
      return 1;
    }
    return 2;
  }
  if( pA->op!=TK_COLUMN && pA->op!=TK_AGG_COLUMN && pA->u.zToken ){
    if( pA->op==TK_FUNCTION ){
      if( sqlite3StrICmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
#ifndef SQLITE_OMIT_WINDOWFUNC
      /* Justification for the assert():
      ** window functions have p->op==TK_FUNCTION but aggregate functions
      ** have p->op==TK_AGG_FUNCTION.  So any comparison between an aggregate
      ** function and a window function should have failed before reaching
      ** this point.  And, it is not possible to have a window function and
      ** a scalar function with the same name and number of arguments.  So
      ** if we reach this point, either A and B both window functions or
      ** neither are a window functions. */
      assert( ExprHasProperty(pA,EP_WinFunc)==ExprHasProperty(pB,EP_WinFunc) );
      if( ExprHasProperty(pA,EP_WinFunc) ){
        if( sqlite3WindowCompare(pParse,pA->y.pWin,pB->y.pWin)!=0 ) return 2;
      }
#endif
    }else if( pA->op==TK_COLLATE ){
      if( sqlite3_stricmp(pA->u.zToken,pB->u.zToken)!=0 ) return 2;
    }else if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
      return 2;
    }
  }
  if( (pA->flags & EP_Distinct)!=(pB->flags & EP_Distinct) ) return 2;
................................................................................
    if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList, iTab) ) return 2;
    assert( (combinedFlags & EP_Reduced)==0 );
    if( pA->op!=TK_STRING && pA->op!=TK_TRUEFALSE ){
      if( pA->iColumn!=pB->iColumn ) return 2;
      if( pA->iTable!=pB->iTable 
       && (pA->iTable!=iTab || NEVER(pB->iTable>=0)) ) return 2;
    }















  }
  return 0;
}

/*
** Compare two ExprList objects.  Return 0 if they are identical and 
** non-zero if they differ in any way.
................................................................................
  }
  return 0;
}

/*
** This is the Expr node callback for sqlite3ExprImpliesNotNullRow().
** If the expression node requires that the table at pWalker->iCur
** have one or more non-NULL column, then set pWalker->eCode to 1 and abort.
**
** This routine controls an optimization.  False positives (setting
** pWalker->eCode to 1 when it should not be) are deadly, but false-negatives
** (never setting pWalker->eCode) is a harmless missed optimization.
*/
static int impliesNotNullRow(Walker *pWalker, Expr *pExpr){
  testcase( pExpr->op==TK_AGG_COLUMN );
  testcase( pExpr->op==TK_AGG_FUNCTION );



  if( ExprHasProperty(pExpr, EP_FromJoin) ) return WRC_Prune;
  switch( pExpr->op ){
    case TK_ISNOT:
    case TK_NOT:
    case TK_ISNULL:
    case TK_IS:
    case TK_OR:
................................................................................
    case TK_GE:
      testcase( pExpr->op==TK_EQ );
      testcase( pExpr->op==TK_NE );
      testcase( pExpr->op==TK_LT );
      testcase( pExpr->op==TK_LE );
      testcase( pExpr->op==TK_GT );
      testcase( pExpr->op==TK_GE );
      if( (pExpr->pLeft->op==TK_COLUMN && IsVirtual(pExpr->pLeft->y.pTab))
       || (pExpr->pRight->op==TK_COLUMN && IsVirtual(pExpr->pRight->y.pTab))
      ){
       return WRC_Prune;
      }
    default:
      return WRC_Continue;
  }
}
................................................................................
                break;
              }
            }
            if( (k>=pAggInfo->nColumn)
             && (k = addAggInfoColumn(pParse->db, pAggInfo))>=0 
            ){
              pCol = &pAggInfo->aCol[k];
              pCol->pTab = pExpr->y.pTab;
              pCol->iTable = pExpr->iTable;
              pCol->iColumn = pExpr->iColumn;
              pCol->iMem = ++pParse->nMem;
              pCol->iSorterColumn = -1;
              pCol->pExpr = pExpr;
              if( pAggInfo->pGroupBy ){
                int j, n;
................................................................................
  ** table.
  */
  v = sqlite3GetVdbe(pParse);
  if( v==0 ){
    goto exit_rename_table;
  }















  /* figure out how many UTF-8 characters are in zName */
  zTabName = pTab->zName;
  nTabName = sqlite3Utf8CharLen(zTabName, -1);

  /* Rewrite all CREATE TABLE, INDEX, TRIGGER or VIEW statements in
  ** the schema to use the new table name.  */
  sqlite3NestedParse(pParse, 
................................................................................
            "tbl_name = "
              "CASE WHEN tbl_name=%Q COLLATE nocase AND "
              "          sqlite_rename_test(%Q, sql, type, name, 1) "
              "THEN %Q ELSE tbl_name END "
            "WHERE type IN ('view', 'trigger')"
        , zDb, zTabName, zName, zTabName, zDb, zName);
  }

  /* If this is a virtual table, invoke the xRename() function if
  ** one is defined. The xRename() callback will modify the names
  ** of any resources used by the v-table implementation (including other
  ** SQLite tables) that are identified by the name of the virtual table.
  */
#ifndef SQLITE_OMIT_VIRTUALTABLE
  if( pVTab ){
    int i = ++pParse->nMem;
    sqlite3VdbeLoadString(v, i, zName);
    sqlite3VdbeAddOp4(v, OP_VRename, i, 0, 0,(const char*)pVTab, P4_VTAB);
    sqlite3MayAbort(pParse);
  }
#endif

  renameReloadSchema(pParse, iDb);
  renameTestSchema(pParse, zDb, iDb==1);

exit_rename_table:
  sqlite3SrcListDelete(db, pSrc);
  sqlite3DbFree(db, zName);
................................................................................
  if( pExpr->op==TK_TRIGGER 
   && pExpr->iColumn==p->iCol 
   && pWalker->pParse->pTriggerTab==p->pTab
  ){
    renameTokenFind(pWalker->pParse, p, (void*)pExpr);
  }else if( pExpr->op==TK_COLUMN 
   && pExpr->iColumn==p->iCol 
   && p->pTab==pExpr->y.pTab
  ){
    renameTokenFind(pWalker->pParse, p, (void*)pExpr);
  }
  return WRC_Continue;
}

/*
................................................................................
  memset(&sNC, 0, sizeof(sNC));
  sNC.pParse = pParse;
  assert( pNew->pTabSchema );
  pParse->pTriggerTab = sqlite3FindTable(db, pNew->table, 
      db->aDb[sqlite3SchemaToIndex(db, pNew->pTabSchema)].zDbSName
  );
  pParse->eTriggerOp = pNew->op;
  /* ALWAYS() because if the table of the trigger does not exist, the
  ** error would have been hit before this point */
  if( ALWAYS(pParse->pTriggerTab) ){
    rc = sqlite3ViewGetColumnNames(pParse, pParse->pTriggerTab);
  }

  /* Resolve symbols in WHEN clause */
  if( rc==SQLITE_OK && pNew->pWhen ){
    rc = sqlite3ResolveExprNames(&sNC, pNew->pWhen);
  }

  for(pStep=pNew->step_list; rc==SQLITE_OK && pStep; pStep=pStep->pNext){
    if( pStep->pSelect ){
      sqlite3SelectPrep(pParse, pStep->pSelect, &sNC);
      if( pParse->nErr ) rc = pParse->rc;
................................................................................
}

/*
** Walker expression callback used by "RENAME TABLE". 
*/
static int renameTableExprCb(Walker *pWalker, Expr *pExpr){
  RenameCtx *p = pWalker->u.pRename;
  if( pExpr->op==TK_COLUMN && p->pTab==pExpr->y.pTab ){
    renameTokenFind(pWalker->pParse, p, (void*)&pExpr->y.pTab);
  }
  return WRC_Continue;
}

/*
** Walker select callback used by "RENAME TABLE". 
*/
................................................................................
    sWalker.xExprCallback = renameTableExprCb;
    sWalker.xSelectCallback = renameTableSelectCb;
    sWalker.u.pRename = &sCtx;

    rc = renameParseSql(&sParse, zDb, 1, db, zInput, bTemp);

    if( rc==SQLITE_OK ){
      int isLegacy = (db->flags & SQLITE_LegacyAlter);
      if( sParse.pNewTable ){
        Table *pTab = sParse.pNewTable;

        if( pTab->pSelect ){
          if( isLegacy==0 ){
            NameContext sNC;
            memset(&sNC, 0, sizeof(sNC));
            sNC.pParse = &sParse;

            sqlite3SelectPrep(&sParse, pTab->pSelect, &sNC);
            if( sParse.nErr ) rc = sParse.rc;
            sqlite3WalkSelect(&sWalker, pTab->pSelect);
          }
        }else{
          /* Modify any FK definitions to point to the new table. */
#ifndef SQLITE_OMIT_FOREIGN_KEY
          if( isLegacy==0 || (db->flags & SQLITE_ForeignKeys) ){
            FKey *pFKey;
            for(pFKey=pTab->pFKey; pFKey; pFKey=pFKey->pNextFrom){
              if( sqlite3_stricmp(pFKey->zTo, zOld)==0 ){
                renameTokenFind(&sParse, &sCtx, (void*)pFKey->zTo);
              }
            }
          }
................................................................................
#endif

          /* If this is the table being altered, fix any table refs in CHECK
          ** expressions. Also update the name that appears right after the
          ** "CREATE [VIRTUAL] TABLE" bit. */
          if( sqlite3_stricmp(zOld, pTab->zName)==0 ){
            sCtx.pTab = pTab;
            if( isLegacy==0 ){
              sqlite3WalkExprList(&sWalker, pTab->pCheck);
            }
            renameTokenFind(&sParse, &sCtx, pTab->zName);
          }
        }
      }

      else if( sParse.pNewIndex ){
        renameTokenFind(&sParse, &sCtx, sParse.pNewIndex->zName);
        if( isLegacy==0 ){
          sqlite3WalkExpr(&sWalker, sParse.pNewIndex->pPartIdxWhere);
        }
      }

#ifndef SQLITE_OMIT_TRIGGER
      else{
        Trigger *pTrigger = sParse.pNewTrigger;
        TriggerStep *pStep;
        if( 0==sqlite3_stricmp(sParse.pNewTrigger->table, zOld) 
            && sCtx.pTab->pSchema==pTrigger->pTabSchema
          ){
          renameTokenFind(&sParse, &sCtx, sParse.pNewTrigger->table);
        }

        if( isLegacy==0 ){
          rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);
          if( rc==SQLITE_OK ){
            renameWalkTrigger(&sWalker, pTrigger);
            for(pStep=pTrigger->step_list; pStep; pStep=pStep->pNext){
              if( pStep->zTarget && 0==sqlite3_stricmp(pStep->zTarget, zOld) ){
                renameTokenFind(&sParse, &sCtx, pStep->zTarget);
              }
            }
          }
        }
      }
#endif
    }

................................................................................
  int NotUsed,
  sqlite3_value **argv
){
  sqlite3 *db = sqlite3_context_db_handle(context);
  char const *zDb = (const char*)sqlite3_value_text(argv[0]);
  char const *zInput = (const char*)sqlite3_value_text(argv[1]);
  int bTemp = sqlite3_value_int(argv[4]);
  int isLegacy = (db->flags & SQLITE_LegacyAlter);

#ifndef SQLITE_OMIT_AUTHORIZATION
  sqlite3_xauth xAuth = db->xAuth;
  db->xAuth = 0;
#endif

  UNUSED_PARAMETER(NotUsed);
  if( zDb && zInput ){
    int rc;
    Parse sParse;
    rc = renameParseSql(&sParse, zDb, 1, db, zInput, bTemp);
    if( rc==SQLITE_OK ){
      if( isLegacy==0 && sParse.pNewTable && sParse.pNewTable->pSelect ){
        NameContext sNC;
        memset(&sNC, 0, sizeof(sNC));
        sNC.pParse = &sParse;
        sqlite3SelectPrep(&sParse, sParse.pNewTable->pSelect, &sNC);
        if( sParse.nErr ) rc = sParse.rc;
      }

      else if( sParse.pNewTrigger ){
        if( isLegacy==0 ){
          rc = renameResolveTrigger(&sParse, bTemp ? 0 : zDb);
        }
        if( rc==SQLITE_OK ){
          int i1 = sqlite3SchemaToIndex(db, sParse.pNewTrigger->pTabSchema);
          int i2 = sqlite3FindDbName(db, zDb);
          if( i1==i2 ) sqlite3_result_int(context, 1);
        }
      }
    }
................................................................................
  Table *pTab = 0;      /* The table being read */
  const char *zCol;     /* Name of the column of the table */
  int iSrc;             /* Index in pTabList->a[] of table being read */
  int iDb;              /* The index of the database the expression refers to */
  int iCol;             /* Index of column in table */

  assert( pExpr->op==TK_COLUMN || pExpr->op==TK_TRIGGER );
  assert( !IN_RENAME_OBJECT || db->xAuth==0 );
  if( db->xAuth==0 ) return;
  iDb = sqlite3SchemaToIndex(pParse->db, pSchema);
  if( iDb<0 ){
    /* An attempt to read a column out of a subquery or other
    ** temporary table. */
    return;
  }
................................................................................
){
  sqlite3 *db = pParse->db;
  int rc;

  /* Don't do any authorization checks if the database is initialising
  ** or if the parser is being invoked from within sqlite3_declare_vtab.
  */
  assert( !IN_RENAME_OBJECT || db->xAuth==0 );
  if( db->init.busy || IN_SPECIAL_PARSE ){
    return SQLITE_OK;
  }

  if( db->xAuth==0 ){
    return SQLITE_OK;
  }
................................................................................
    return 0;
  }

  p = sqlite3FindTable(db, zName, zDbase);
  if( p==0 ){
    const char *zMsg = flags & LOCATE_VIEW ? "no such view" : "no such table";
#ifndef SQLITE_OMIT_VIRTUALTABLE

    /* If zName is the not the name of a table in the schema created using
    ** CREATE, then check to see if it is the name of an virtual table that
    ** can be an eponymous virtual table. */
    Module *pMod = (Module*)sqlite3HashFind(&db->aModule, zName);
    if( pMod==0 && sqlite3_strnicmp(zName, "pragma_", 7)==0 ){
      pMod = sqlite3PragmaVtabRegister(db, zName);
    }
    if( pMod && sqlite3VtabEponymousTableInit(pParse, pMod) ){
      return pMod->pEpoTab;

    }
#endif
    if( (flags & LOCATE_NOERR)==0 ){
      if( zDbase ){
        sqlite3ErrorMsg(pParse, "%s: %s.%s", zMsg, zDbase, zName);
      }else{
        sqlite3ErrorMsg(pParse, "%s: %s", zMsg, zName);
................................................................................
  }

  /* Delete any foreign keys attached to this table. */
  sqlite3FkDelete(db, pTable);

  /* Delete the Table structure itself.
  */
#ifdef SQLITE_ENABLE_NORMALIZE
  if( pTable->pColHash ){
    sqlite3HashClear(pTable->pColHash);
    sqlite3_free(pTable->pColHash);
  }
#endif
  sqlite3DeleteColumnNames(db, pTable);
  sqlite3DbFree(db, pTable->zName);
  sqlite3DbFree(db, pTable->zColAff);
  sqlite3SelectDelete(db, pTable->pSelect);
  sqlite3ExprListDelete(db, pTable->pCheck);
#ifndef SQLITE_OMIT_VIRTUALTABLE
  sqlite3VtabClear(db, pTable);
................................................................................
    assert( db->init.iDb==0 || db->init.busy || IN_RENAME_OBJECT
             || (db->mDbFlags & DBFLAG_Vacuum)!=0);
    iDb = db->init.iDb;
    *pUnqual = pName1;
  }
  return iDb;
}

/*
** True if PRAGMA writable_schema is ON
*/
SQLITE_PRIVATE int sqlite3WritableSchema(sqlite3 *db){
  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==0 );
  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
               SQLITE_WriteSchema );
  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
               SQLITE_Defensive );
  testcase( (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==
               (SQLITE_WriteSchema|SQLITE_Defensive) );
  return (db->flags&(SQLITE_WriteSchema|SQLITE_Defensive))==SQLITE_WriteSchema;
}

/*
** This routine is used to check if the UTF-8 string zName is a legal
** unqualified name for a new schema object (table, index, view or
** trigger). All names are legal except those that begin with the string
** "sqlite_" (in upper, lower or mixed case). This portion of the namespace
** is reserved for internal use.
*/
SQLITE_PRIVATE int sqlite3CheckObjectName(Parse *pParse, const char *zName){
  if( !pParse->db->init.busy && pParse->nested==0 
          && sqlite3WritableSchema(pParse->db)==0
          && 0==sqlite3StrNICmp(zName, "sqlite_", 7) ){
    sqlite3ErrorMsg(pParse, "object name reserved for internal use: %s", zName);
    return SQLITE_ERROR;
  }
  return SQLITE_OK;
}

................................................................................
    for(i=0; i<pTab->nCol; i++){
      if( (pTab->aCol[i].colFlags & COLFLAG_PRIMKEY)!=0 ){
        pTab->aCol[i].notNull = OE_Abort;
      }
    }
  }





  /* Convert the P3 operand of the OP_CreateBtree opcode from BTREE_INTKEY
  ** into BTREE_BLOBKEY.
  */
  if( pParse->addrCrTab ){
    assert( v );
    sqlite3VdbeChangeP3(v, pParse->addrCrTab, BTREE_BLOBKEY);
  }
................................................................................
    assert( pPk->nColumn==j );
    assert( pTab->nCol==j );
  }else{
    pPk->nColumn = pTab->nCol;
  }
  recomputeColumnsNotIndexed(pPk);
}

/*
** Return true if zName is a shadow table name in the current database
** connection.
**
** zName is temporarily modified while this routine is running, but is
** restored to its original value prior to this routine returning.
*/
static int isShadowTableName(sqlite3 *db, char *zName){
  char *zTail;                  /* Pointer to the last "_" in zName */
  Table *pTab;                  /* Table that zName is a shadow of */
  Module *pMod;                 /* Module for the virtual table */

  zTail = strrchr(zName, '_');
  if( zTail==0 ) return 0;
  *zTail = 0;
  pTab = sqlite3FindTable(db, zName, 0);
  *zTail = '_';
  if( pTab==0 ) return 0;
  if( !IsVirtual(pTab) ) return 0;
  pMod = (Module*)sqlite3HashFind(&db->aModule, pTab->azModuleArg[0]);
  if( pMod==0 ) return 0;
  if( pMod->pModule->iVersion<3 ) return 0;
  if( pMod->pModule->xShadowName==0 ) return 0;
  return pMod->pModule->xShadowName(zTail+1);
}

/*
** This routine is called to report the final ")" that terminates
** a CREATE TABLE statement.
**
** The table structure that other action routines have been building
** is added to the internal hash tables, assuming no errors have
................................................................................

  if( pEnd==0 && pSelect==0 ){
    return;
  }
  assert( !db->mallocFailed );
  p = pParse->pNewTable;
  if( p==0 ) return;

  if( pSelect==0 && isShadowTableName(db, p->zName) ){
    p->tabFlags |= TF_Shadow;
  }

  /* If the db->init.busy is 1 it means we are reading the SQL off the
  ** "sqlite_master" or "sqlite_temp_master" table on the disk.
  ** So do not write to the disk again.  Extract the root page number
  ** for the table from the db->init.newTnum field.  (The page number
  ** should have been put there by the sqliteOpenCb routine.)
  **
................................................................................
** Also write code to modify the sqlite_master table and internal schema
** if a root-page of another table is moved by the btree-layer whilst
** erasing iTable (this can happen with an auto-vacuum database).
*/ 
static void destroyRootPage(Parse *pParse, int iTable, int iDb){
  Vdbe *v = sqlite3GetVdbe(pParse);
  int r1 = sqlite3GetTempReg(pParse);
  if( iTable<2 ) sqlite3ErrorMsg(pParse, "corrupt schema");
  sqlite3VdbeAddOp3(v, OP_Destroy, iTable, r1, iDb);
  sqlite3MayAbort(pParse);
#ifndef SQLITE_OMIT_AUTOVACUUM
  /* OP_Destroy stores an in integer r1. If this integer
  ** is non-zero, then it is the root page number of a table moved to
  ** location iTable. The following code modifies the sqlite_master table to
  ** reflect this.
................................................................................
  for(p=sqlite3BuiltinFunctions.a[h]; p; p=p->u.pHash){
    if( sqlite3StrICmp(p->zName, zFunc)==0 ){
      return p;
    }
  }
  return 0;
}
#ifdef SQLITE_ENABLE_NORMALIZE
SQLITE_PRIVATE FuncDef *sqlite3FunctionSearchN(
  int h,               /* Hash of the name */
  const char *zFunc,   /* Name of function */
  int nFunc            /* Length of the name */
){
  FuncDef *p;
  for(p=sqlite3BuiltinFunctions.a[h]; p; p=p->u.pHash){
    if( sqlite3StrNICmp(p->zName, zFunc, nFunc)==0 ){
      return p;
    }
  }
  return 0;
}
#endif /* SQLITE_ENABLE_NORMALIZE */

/*
** Insert a new FuncDef into a FuncDefHash hash table.
*/
SQLITE_PRIVATE void sqlite3InsertBuiltinFuncs(
  FuncDef *aDef,      /* List of global functions to be inserted */
  int nDef            /* Length of the apDef[] list */
){
  int i;
  for(i=0; i<nDef; i++){
    FuncDef *pOther;
    const char *zName = aDef[i].zName;
    int nName = sqlite3Strlen30(zName);
    int h = SQLITE_FUNC_HASH(zName[0], nName);
    assert( zName[0]>='a' && zName[0]<='z' );
    pOther = functionSearch(h, zName);
    if( pOther ){
      assert( pOther!=&aDef[i] && pOther->pNext!=&aDef[i] );
      aDef[i].pNext = pOther->pNext;
      pOther->pNext = &aDef[i];
    }else{
................................................................................
  ** install a new function.  Whatever FuncDef structure is returned it will
  ** have fields overwritten with new information appropriate for the
  ** new function.  But the FuncDefs for built-in functions are read-only.
  ** So we must not search for built-ins when creating a new function.
  */ 
  if( !createFlag && (pBest==0 || (db->mDbFlags & DBFLAG_PreferBuiltin)!=0) ){
    bestScore = 0;
    h = SQLITE_FUNC_HASH(sqlite3UpperToLower[(u8)zName[0]], nName);
    p = functionSearch(h, zName);
    while( p ){
      int score = matchQuality(p, nArg, enc);
      if( score>bestScore ){
        pBest = p;
        bestScore = score;
      }
................................................................................
    pTab->nTabRef++;
  }
  if( sqlite3IndexedByLookup(pParse, pItem) ){
    pTab = 0;
  }
  return pTab;
}

/* Return true if table pTab is read-only.
**
** A table is read-only if any of the following are true:
**
**   1) It is a virtual table and no implementation of the xUpdate method
**      has been provided
**
**   2) It is a system table (i.e. sqlite_master), this call is not
**      part of a nested parse and writable_schema pragma has not 
**      been specified
**
**   3) The table is a shadow table, the database connection is in
**      defensive mode, and the current sqlite3_prepare()
**      is for a top-level SQL statement.
*/
static int tabIsReadOnly(Parse *pParse, Table *pTab){
  sqlite3 *db;
  if( IsVirtual(pTab) ){
    return sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0;
  }
  if( (pTab->tabFlags & (TF_Readonly|TF_Shadow))==0 ) return 0;
  db = pParse->db;
  if( (pTab->tabFlags & TF_Readonly)!=0 ){
    return sqlite3WritableSchema(db)==0 && pParse->nested==0;
  }
  assert( pTab->tabFlags & TF_Shadow );
  return (db->flags & SQLITE_Defensive)!=0
           && db->nVdbeExec==0
           && db->pVtabCtx==0;
}

/*
** Check to make sure the given table is writable.  If it is not
** writable, generate an error message and return 1.  If it is
** writable return 0;
*/
SQLITE_PRIVATE int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
  if( tabIsReadOnly(pParse, pTab) ){















    sqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName);
    return 1;
  }

#ifndef SQLITE_OMIT_VIEW
  if( !viewOk && pTab->pSelect ){
    sqlite3ErrorMsg(pParse,"cannot modify %s because it is a view",pTab->zName);
    return 1;
  }
#endif
  return 0;
................................................................................
  sqlite3 *db,      /* The database connection */
  Table *pTab,      /* The table whose column is desired */
  int iCursor,      /* The open cursor on the table */
  i16 iCol          /* The column that is wanted */
){
  Expr *pExpr = sqlite3Expr(db, TK_COLUMN, 0);
  if( pExpr ){
    pExpr->y.pTab = pTab;
    pExpr->iTable = iCursor;
    pExpr->iColumn = iCol;
  }
  return pExpr;
}

/*
................................................................................
      zColAff[i] = pTab->aCol[i].affinity;
    }
    do{
      zColAff[i--] = 0;
    }while( i>=0 && zColAff[i]==SQLITE_AFF_BLOB );
    pTab->zColAff = zColAff;
  }
  assert( zColAff!=0 );
  i = sqlite3Strlen30NN(zColAff);
  if( i ){
    if( iReg ){
      sqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i);
    }else{
      sqlite3VdbeChangeP4(v, -1, zColAff, i);
    }
  }
................................................................................
 #undef pTrigger
#endif
#ifdef tmask
 #undef tmask
#endif

/*
** Meanings of bits in of pWalker->eCode for 
** sqlite3ExprReferencesUpdatedColumn()
*/
#define CKCNSTRNT_COLUMN   0x01    /* CHECK constraint uses a changing column */
#define CKCNSTRNT_ROWID    0x02    /* CHECK constraint references the ROWID */

/* This is the Walker callback from sqlite3ExprReferencesUpdatedColumn().
*  Set bit 0x01 of pWalker->eCode if pWalker->eCode to 0 and if this
** expression node references any of the
** columns that are being modifed by an UPDATE statement.
*/
static int checkConstraintExprNode(Walker *pWalker, Expr *pExpr){
  if( pExpr->op==TK_COLUMN ){
    assert( pExpr->iColumn>=0 || pExpr->iColumn==-1 );
    if( pExpr->iColumn>=0 ){
      if( pWalker->u.aiCol[pExpr->iColumn]>=0 ){
................................................................................
}

/*
** pExpr is a CHECK constraint on a row that is being UPDATE-ed.  The
** only columns that are modified by the UPDATE are those for which
** aiChng[i]>=0, and also the ROWID is modified if chngRowid is true.
**
** Return true if CHECK constraint pExpr uses any of the
** changing columns (or the rowid if it is changing).  In other words,
** return true if this CHECK constraint must be validated for
** the new row in the UPDATE statement.
**
** 2018-09-15: pExpr might also be an expression for an index-on-expressions.
** The operation of this routine is the same - return true if an only if
** the expression uses one or more of columns identified by the second and
** third arguments.
*/

SQLITE_PRIVATE int sqlite3ExprReferencesUpdatedColumn(
  Expr *pExpr,    /* The expression to be checked */
  int *aiChng,    /* aiChng[x]>=0 if column x changed by the UPDATE */
  int chngRowid   /* True if UPDATE changes the rowid */
){
  Walker w;
  memset(&w, 0, sizeof(w));
  w.eCode = 0;
  w.xExprCallback = checkConstraintExprNode;
  w.u.aiCol = aiChng;
  sqlite3WalkExpr(&w, pExpr);
  if( !chngRowid ){
................................................................................
    testcase( (w.eCode & CKCNSTRNT_ROWID)!=0 );
    w.eCode &= ~CKCNSTRNT_ROWID;
  }
  testcase( w.eCode==0 );
  testcase( w.eCode==CKCNSTRNT_COLUMN );
  testcase( w.eCode==CKCNSTRNT_ROWID );
  testcase( w.eCode==(CKCNSTRNT_ROWID|CKCNSTRNT_COLUMN) );
  return w.eCode!=0;
}

/*
** Generate code to do constraint checks prior to an INSERT or an UPDATE
** on table pTab.
**
** The regNewData parameter is the first register in a range that contains
................................................................................
  if( pTab->pCheck && (db->flags & SQLITE_IgnoreChecks)==0 ){
    ExprList *pCheck = pTab->pCheck;
    pParse->iSelfTab = -(regNewData+1);
    onError = overrideError!=OE_Default ? overrideError : OE_Abort;
    for(i=0; i<pCheck->nExpr; i++){
      int allOk;
      Expr *pExpr = pCheck->a[i].pExpr;
      if( aiChng
       && !sqlite3ExprReferencesUpdatedColumn(pExpr, aiChng, pkChng)
      ){
        /* The check constraints do not reference any of the columns being
        ** updated so there is no point it verifying the check constraint */
        continue;
      }
      allOk = sqlite3VdbeMakeLabel(v);
      sqlite3VdbeVerifyAbortable(v, onError);
      sqlite3ExprIfTrue(pParse, pExpr, allOk, SQLITE_JUMPIFNULL);
      if( onError==OE_Ignore ){
        sqlite3VdbeGoto(v, ignoreDest);
      }else{
        char *zName = pCheck->a[i].zName;
................................................................................
  void (*str_append)(sqlite3_str*, const char *zIn, int N);
  void (*str_appendall)(sqlite3_str*, const char *zIn);
  void (*str_appendchar)(sqlite3_str*, int N, char C);
  void (*str_reset)(sqlite3_str*);
  int (*str_errcode)(sqlite3_str*);
  int (*str_length)(sqlite3_str*);
  char *(*str_value)(sqlite3_str*);
  /* Version 3.25.0 and later */
  int (*create_window_function)(sqlite3*,const char*,int,int,void*,
                            void (*xStep)(sqlite3_context*,int,sqlite3_value**),
                            void (*xFinal)(sqlite3_context*),
                            void (*xValue)(sqlite3_context*),
                            void (*xInv)(sqlite3_context*,int,sqlite3_value**),
                            void(*xDestroy)(void*));
  /* Version 3.26.0 and later */
  const char *(*normalized_sql)(sqlite3_stmt*);
};

/*
** This is the function signature used for all extension entry points.  It
** is also defined in the file "loadext.c".
*/
typedef int (*sqlite3_loadext_entry)(
................................................................................
#define sqlite3_str_appendchar         sqlite3_api->str_appendchar
#define sqlite3_str_reset              sqlite3_api->str_reset
#define sqlite3_str_errcode            sqlite3_api->str_errcode
#define sqlite3_str_length             sqlite3_api->str_length
#define sqlite3_str_value              sqlite3_api->str_value
/* Version 3.25.0 and later */
#define sqlite3_create_window_function sqlite3_api->create_window_function
/* Version 3.26.0 and later */
#define sqlite3_normalized_sql         sqlite3_api->normalized_sql
#endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */

#if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
  /* This case when the file really is being compiled as a loadable 
  ** extension */
# define SQLITE_EXTENSION_INIT1     const sqlite3_api_routines *sqlite3_api=0;
# define SQLITE_EXTENSION_INIT2(v)  sqlite3_api=v;
................................................................................
  sqlite3_str_appendall,
  sqlite3_str_appendchar,
  sqlite3_str_reset,
  sqlite3_str_errcode,
  sqlite3_str_length,
  sqlite3_str_value,
  /* Version 3.25.0 and later */
  sqlite3_create_window_function,
  /* Version 3.26.0 and later */
#ifdef SQLITE_ENABLE_NORMALIZE
  sqlite3_normalized_sql
#else
  0
#endif
};

/*
** Attempt to load an SQLite extension library contained in the file
** zFile.  The entry point is zProc.  zProc may be 0 in which case a
** default entry point name (sqlite3_extension_init) is used.  Use
** of the default name is recommended.
................................................................................
#define PragTyp_TEMP_STORE_DIRECTORY          36
#define PragTyp_THREADS                       37
#define PragTyp_WAL_AUTOCHECKPOINT            38
#define PragTyp_WAL_CHECKPOINT                39
#define PragTyp_ACTIVATE_EXTENSIONS           40
#define PragTyp_HEXKEY                        41
#define PragTyp_KEY                           42

#define PragTyp_LOCK_STATUS                   43
#define PragTyp_PARSER_TRACE                  44
#define PragTyp_STATS                         45

/* Property flags associated with various pragma. */
#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
#define PragFlg_NoColumns  0x02 /* OP_ResultRow called with zero columns */
#define PragFlg_NoColumns1 0x04 /* zero columns if RHS argument is present */
#define PragFlg_ReadOnly   0x08 /* Read-only HEADER_VALUE */
#define PragFlg_Result0    0x10 /* Acts as query when no argument */
................................................................................
#define PragFlg_SchemaReq  0x80 /* Schema required - "main" is default */

/* Names of columns for pragmas that return multi-column result
** or that return single-column results where the name of the
** result column is different from the name of the pragma
*/
static const char *const pragCName[] = {
  /*   0 */ "id",          /* Used by: foreign_key_list */
  /*   1 */ "seq",        
  /*   2 */ "table",      
  /*   3 */ "from",       
  /*   4 */ "to",         
  /*   5 */ "on_update",  
  /*   6 */ "on_delete",  
  /*   7 */ "match",      
  /*   8 */ "cid",         /* Used by: table_xinfo */
  /*   9 */ "name",       
  /*  10 */ "type",       
  /*  11 */ "notnull",    
  /*  12 */ "dflt_value", 
  /*  13 */ "pk",         
  /*  14 */ "hidden",     
                           /* table_info reuses 8 */
  /*  15 */ "seqno",       /* Used by: index_xinfo */
  /*  16 */ "cid",        
  /*  17 */ "name",       
  /*  18 */ "desc",       
  /*  19 */ "coll",       
  /*  20 */ "key",        
  /*  21 */ "tbl",         /* Used by: stats */
  /*  22 */ "idx",        
  /*  23 */ "wdth",       
  /*  24 */ "hght",       
  /*  25 */ "flgs",       
  /*  26 */ "seq",         /* Used by: index_list */
  /*  27 */ "name",       
  /*  28 */ "unique",     
  /*  29 */ "origin",     
  /*  30 */ "partial",    
  /*  31 */ "table",       /* Used by: foreign_key_check */
  /*  32 */ "rowid",      
  /*  33 */ "parent",     
  /*  34 */ "fkid",       
                           /* index_info reuses 15 */
  /*  35 */ "seq",         /* Used by: database_list */
  /*  36 */ "name",       
  /*  37 */ "file",       

  /*  38 */ "busy",        /* Used by: wal_checkpoint */
  /*  39 */ "log",        
  /*  40 */ "checkpointed",

  /*  41 */ "name",        /* Used by: function_list */
  /*  42 */ "builtin",    
                           /* collation_list reuses 26 */
  /*  43 */ "database",    /* Used by: lock_status */
  /*  44 */ "status",     


  /*  45 */ "cache_size",  /* Used by: default_cache_size */
                           /* module_list pragma_list reuses 9 */
  /*  46 */ "timeout",     /* Used by: busy_timeout */


};

/* Definitions of all built-in pragmas */
typedef struct PragmaName {
  const char *const zName; /* Name of pragma */
  u8 ePragTyp;             /* PragTyp_XXX value */
  u8 mPragFlg;             /* Zero or more PragFlg_XXX values */
  u8 iPragCName;           /* Start of column names in pragCName[] */
  u8 nPragCName;           /* Num of col names. 0 means use pragma name */
  u64 iArg;                /* Extra argument */
} PragmaName;
static const PragmaName aPragmaName[] = {
#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
 {/* zName:     */ "activate_extensions",
  /* ePragTyp:  */ PragTyp_ACTIVATE_EXTENSIONS,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_AutoIndex },
#endif
#endif
 {/* zName:     */ "busy_timeout",
  /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 46, 1,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "cache_size",
  /* ePragTyp:  */ PragTyp_CACHE_SIZE,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_CkptFullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "collation_list",
  /* ePragTyp:  */ PragTyp_COLLATION_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 26, 2,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
 {/* zName:     */ "compile_options",
  /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ BTREE_DATA_VERSION },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "database_list",
  /* ePragTyp:  */ PragTyp_DATABASE_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0,
  /* ColNames:  */ 35, 3,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
 {/* zName:     */ "default_cache_size",
  /* ePragTyp:  */ PragTyp_DEFAULT_CACHE_SIZE,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
  /* ColNames:  */ 45, 1,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "defer_foreign_keys",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "foreign_key_check",
  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0,
  /* ColNames:  */ 31, 4,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY)
 {/* zName:     */ "foreign_key_list",
  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 0, 8,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "foreign_keys",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
................................................................................
  /* iArg:      */ SQLITE_FullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "function_list",
  /* ePragTyp:  */ PragTyp_FUNCTION_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 41, 2,
  /* iArg:      */ 0 },
#endif
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "hexkey",
  /* ePragTyp:  */ PragTyp_HEXKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 2 },
 {/* zName:     */ "hexrekey",
  /* ePragTyp:  */ PragTyp_HEXKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 3 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_CHECK)
 {/* zName:     */ "ignore_check_constraints",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "index_info",
  /* ePragTyp:  */ PragTyp_INDEX_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 15, 3,
  /* iArg:      */ 0 },
 {/* zName:     */ "index_list",
  /* ePragTyp:  */ PragTyp_INDEX_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 26, 5,
  /* iArg:      */ 0 },
 {/* zName:     */ "index_xinfo",
  /* ePragTyp:  */ PragTyp_INDEX_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 15, 6,
  /* iArg:      */ 1 },
#endif
................................................................................
 {/* zName:     */ "key",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "legacy_alter_table",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_LegacyAlter },
 {/* zName:     */ "legacy_file_format",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_LegacyFileFmt },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
 {/* zName:     */ "lock_status",
  /* ePragTyp:  */ PragTyp_LOCK_STATUS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 43, 2,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "locking_mode",
  /* ePragTyp:  */ PragTyp_LOCKING_MODE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
................................................................................
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
#if !defined(SQLITE_OMIT_VIRTUALTABLE)
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "module_list",
  /* ePragTyp:  */ PragTyp_MODULE_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 9, 1,
  /* iArg:      */ 0 },
#endif
#endif
#endif
 {/* zName:     */ "optimize",
  /* ePragTyp:  */ PragTyp_OPTIMIZE,
  /* ePragFlg:  */ PragFlg_Result1|PragFlg_NeedSchema,
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_INTROSPECTION_PRAGMAS)
 {/* zName:     */ "pragma_list",
  /* ePragTyp:  */ PragTyp_PRAGMA_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 9, 1,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "query_only",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_RecTriggers },
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "rekey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 1 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "reverse_unordered_selects",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ReverseOrder },
................................................................................
  /* iArg:      */ SQLITE_SqlTrace },
#endif
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) && defined(SQLITE_DEBUG)
 {/* zName:     */ "stats",
  /* ePragTyp:  */ PragTyp_STATS,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 21, 5,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "synchronous",
  /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "table_info",
  /* ePragTyp:  */ PragTyp_TABLE_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 8, 6,
  /* iArg:      */ 0 },
 {/* zName:     */ "table_xinfo",
  /* ePragTyp:  */ PragTyp_TABLE_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 8, 7,
  /* iArg:      */ 1 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "temp_store",
  /* ePragTyp:  */ PragTyp_TEMP_STORE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "temp_store_directory",
  /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
  /* ePragFlg:  */ PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "textkey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 4 },
 {/* zName:     */ "textrekey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 5 },
#endif
 {/* zName:     */ "threads",
  /* ePragTyp:  */ PragTyp_THREADS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
................................................................................
  /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "wal_checkpoint",
  /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 38, 3,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "writable_schema",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_WriteSchema|SQLITE_NoSchemaError },
#endif
};
/* Number of pragmas: 62 on by default, 81 total. */

/************** End of pragma.h **********************************************/
/************** Continuing where we left off in pragma.c *********************/

/*
** Interpret the given string as a safety level.  Return 0 for OFF,
** 1 for ON or NORMAL, 2 for FULL, and 3 for EXTRA.  Return 1 for an empty or 
................................................................................

#ifndef SQLITE_OMIT_FLAG_PRAGMAS
  case PragTyp_FLAG: {
    if( zRight==0 ){
      setPragmaResultColumnNames(v, pPragma);
      returnSingleInt(v, (db->flags & pPragma->iArg)!=0 );
    }else{
      u64 mask = pPragma->iArg;    /* Mask of bits to set or clear. */
      if( db->autoCommit==0 ){
        /* Foreign key support may not be enabled or disabled while not
        ** in auto-commit mode.  */
        mask &= ~(SQLITE_ForeignKeys);
      }
#if SQLITE_USER_AUTHENTICATION
      if( db->auth.authLevel==UAUTH_User ){
................................................................................
    Table *pTab;
    pTab = sqlite3LocateTable(pParse, LOCATE_NOERR, zRight, zDb);
    if( pTab ){
      int i, k;
      int nHidden = 0;
      Column *pCol;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);
      pParse->nMem = 7;
      sqlite3CodeVerifySchema(pParse, iDb);
      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0, pCol=pTab->aCol; i<pTab->nCol; i++, pCol++){
        int isHidden = IsHiddenColumn(pCol);
        if( isHidden && pPragma->iArg==0 ){
          nHidden++;
          continue;
        }
        if( (pCol->colFlags & COLFLAG_PRIMKEY)==0 ){
          k = 0;
        }else if( pPk==0 ){
          k = 1;
        }else{
          for(k=1; k<=pTab->nCol && pPk->aiColumn[k-1]!=i; k++){}
        }
        assert( pCol->pDflt==0 || pCol->pDflt->op==TK_SPAN );
        sqlite3VdbeMultiLoad(v, 1, pPragma->iArg ? "issisii" : "issisi",
               i-nHidden,
               pCol->zName,
               sqlite3ColumnType(pCol,""),
               pCol->notNull ? 1 : 0,
               pCol->pDflt ? pCol->pDflt->u.zToken : 0,
               k,
               isHidden);
      }
    }
  }
  break;

#ifdef SQLITE_DEBUG
  case PragTyp_STATS: {
................................................................................
      sqlite3VdbeMultiLoad(v, 1, "ss", db->aDb[i].zDbSName, zState);
    }
    break;
  }
#endif

#ifdef SQLITE_HAS_CODEC
  /* Pragma        iArg
  ** ----------   ------
  **  key           0
  **  rekey         1
  **  hexkey        2
  **  hexrekey      3
  **  textkey       4
  **  textrekey     5
  */
  case PragTyp_KEY: {
    if( zRight ){
      int n = pPragma->iArg<4 ? sqlite3Strlen30(zRight) : -1;
      if( (pPragma->iArg & 1)==0 ){
        sqlite3_key_v2(db, zDb, zRight, n);

      }else{
        sqlite3_rekey_v2(db, zDb, zRight, n);
      }


    }
    break;
  }
  case PragTyp_HEXKEY: {
    if( zRight ){
      u8 iByte;
      int i;
      char zKey[40];
      for(i=0, iByte=0; i<sizeof(zKey)*2 && sqlite3Isxdigit(zRight[i]); i++){
        iByte = (iByte<<4) + sqlite3HexToInt(zRight[i]);
        if( (i&1)!=0 ) zKey[i/2] = iByte;
      }
      if( (pPragma->iArg & 1)==0 ){
        sqlite3_key_v2(db, zDb, zKey, i/2);
      }else{
        sqlite3_rekey_v2(db, zDb, zKey, i/2);
      }
    }
    break;
  }
................................................................................
  0,                           /* xSync - sync transaction */
  0,                           /* xCommit - commit transaction */
  0,                           /* xRollback - rollback transaction */
  0,                           /* xFindFunction - function overloading */
  0,                           /* xRename - rename the table */
  0,                           /* xSavepoint */
  0,                           /* xRelease */
  0,                           /* xRollbackTo */
  0                            /* xShadowName */
};

/*
** Check to see if zTabName is really the name of a pragma.  If it is,
** then register an eponymous virtual table for that pragma and return
** a pointer to the Module object for the new virtual table.
*/
................................................................................
    }
#endif
  }
  if( db->mallocFailed ){
    rc = SQLITE_NOMEM_BKPT;
    sqlite3ResetAllSchemasOfConnection(db);
  }
  if( rc==SQLITE_OK || (db->flags&SQLITE_NoSchemaError)){
    /* Black magic: If the SQLITE_NoSchemaError flag is set, then consider
    ** the schema loaded, even if errors occurred. In this situation the 
    ** current sqlite3_prepare() operation will fail, but the following one
    ** will attempt to compile the supplied statement against whatever subset
    ** of the schema was loaded before the error occurred. The primary
    ** purpose of this is to allow access to the sqlite_master table
    ** even when its contents have been corrupted.
    */
................................................................................
  sqlite3BtreeLeaveAll(db);
  rc = sqlite3ApiExit(db, rc);
  assert( (rc&db->errMask)==rc );
  sqlite3_mutex_leave(db->mutex);
  return rc;
}

#ifdef SQLITE_ENABLE_NORMALIZE
/*
** Checks if the specified token is a table, column, or function name,
** based on the databases associated with the statement being prepared.
** If the function fails, zero is returned and pRc is filled with the
** error code.
*/
static int shouldTreatAsIdentifier(
  sqlite3 *db,        /* Database handle. */
  const char *zToken, /* Pointer to start of token to be checked */
  int nToken,         /* Length of token to be checked */
  int *pRc            /* Pointer to error code upon failure */
){
  int bFound = 0;     /* Non-zero if token is an identifier name. */
  int i, j;           /* Database and column loop indexes. */
  Schema *pSchema;    /* Schema for current database. */
  Hash *pHash;        /* Hash table of tables for current database. */
  HashElem *e;        /* Hash element for hash table iteration. */
  Table *pTab;        /* Database table for columns being checked. */

  if( sqlite3IsRowidN(zToken, nToken) ){
    return 1;
  }
  if( nToken>0 ){
    int hash = SQLITE_FUNC_HASH(sqlite3UpperToLower[(u8)zToken[0]], nToken);
    if( sqlite3FunctionSearchN(hash, zToken, nToken) ) return 1;
  }
  assert( db!=0 );
  sqlite3_mutex_enter(db->mutex);
  sqlite3BtreeEnterAll(db);
  for(i=0; i<db->nDb; i++){
    pHash = &db->aFunc;
    if( sqlite3HashFindN(pHash, zToken, nToken) ){
      bFound = 1;
      break;
    }
    pSchema = db->aDb[i].pSchema;
    if( pSchema==0 ) continue;
    pHash = &pSchema->tblHash;
    if( sqlite3HashFindN(pHash, zToken, nToken) ){
      bFound = 1;
      break;
    }
    for(e=sqliteHashFirst(pHash); e; e=sqliteHashNext(e)){
      pTab = sqliteHashData(e);
      if( pTab==0 ) continue;
      pHash = pTab->pColHash;
      if( pHash==0 ){
        pTab->pColHash = pHash = sqlite3_malloc(sizeof(Hash));
        if( pHash ){
          sqlite3HashInit(pHash);
          for(j=0; j<pTab->nCol; j++){
            Column *pCol = &pTab->aCol[j];
            sqlite3HashInsert(pHash, pCol->zName, pCol);
          }
        }else{
          *pRc = SQLITE_NOMEM_BKPT;
          bFound = 0;
          goto done;
        }
      }
      if( pHash && sqlite3HashFindN(pHash, zToken, nToken) ){
        bFound = 1;
        goto done;
      }
    }
  }
done:
  sqlite3BtreeLeaveAll(db);
  sqlite3_mutex_leave(db->mutex);
  return bFound;
}

/*
** Attempt to estimate the final output buffer size needed for the fully
** normalized version of the specified SQL string.  This should take into
** account any potential expansion that could occur (e.g. via IN clauses
** being expanded, etc).  This size returned is the total number of bytes
** including the NUL terminator.
*/
static int estimateNormalizedSize(
  const char *zSql, /* The original SQL string */
  int nSql,         /* Length of original SQL string */
  u8 prepFlags      /* The flags passed to sqlite3_prepare_v3() */
){
  int nOut = nSql + 4;
  const char *z = zSql;
  while( nOut<nSql*5 ){
    while( z[0]!=0 && z[0]!='I' && z[0]!='i' ){ z++; }
    if( z[0]==0 ) break;
    z++;
    if( z[0]!='N' && z[0]!='n' ) break;
    z++;
    while( sqlite3Isspace(z[0]) ){ z++; }
    if( z[0]!='(' ) break;
    z++;
    nOut += 5; /* ?,?,? */
  }
  return nOut;
}

/*
** Copy the current token into the output buffer while dealing with quoted
** identifiers.  By default, all letters will be converted into lowercase.
** If the bUpper flag is set, uppercase will be used.  The piOut argument
** will be used to update the target index into the output string.
*/
static void copyNormalizedToken(
  const char *zSql, /* The original SQL string */
  int iIn,          /* Current index into the original SQL string */
  int nToken,       /* Number of bytes in the current token */
  int tokenFlags,   /* Flags returned by the tokenizer */
  char *zOut,       /* The output string */
  int *piOut        /* Pointer to target index into the output string */
){
  int bQuoted = tokenFlags & SQLITE_TOKEN_QUOTED;
  int bKeyword = tokenFlags & SQLITE_TOKEN_KEYWORD;
  int j = *piOut, k = 0;
  for(; k<nToken; k++){
    if( bQuoted ){
      if( k==0 && iIn>0 ){
        zOut[j++] = '"';
        continue;
      }else if( k==nToken-1 ){
        zOut[j++] = '"';
        continue;
      }
    }
    if( bKeyword ){
      zOut[j++] = sqlite3Toupper(zSql[iIn+k]);
    }else{
      zOut[j++] = sqlite3Tolower(zSql[iIn+k]);
    }
  }
  *piOut = j;
}

/*
** Perform normalization of the SQL contained in the prepared statement and
** store the result in the zNormSql field.  The schema for the associated
** databases are consulted while performing the normalization in order to
** determine if a token appears to be an identifier.  All identifiers are
** left intact in the normalized SQL and all literals are replaced with a
** single '?'.
*/
SQLITE_PRIVATE void sqlite3Normalize(
  Vdbe *pVdbe,      /* VM being reprepared */
  const char *zSql, /* The original SQL string */
  int nSql,         /* Size of the input string in bytes */
  u8 prepFlags      /* The flags passed to sqlite3_prepare_v3() */
){
  sqlite3 *db;           /* Database handle. */
  char *z;               /* The output string */
  int nZ;                /* Size of the output string in bytes */
  int i;                 /* Next character to read from zSql[] */
  int j;                 /* Next character to fill in on z[] */
  int tokenType = 0;     /* Type of the next token */
  int prevTokenType = 0; /* Type of the previous token, except spaces */
  int n;                 /* Size of the next token */
  int nParen = 0;        /* Nesting level of parenthesis */
  Hash inHash;           /* Table of parenthesis levels to output index. */

  db = sqlite3VdbeDb(pVdbe);
  assert( db!=0 );
  assert( pVdbe->zNormSql==0 );
  if( zSql==0 ) return;
  nZ = estimateNormalizedSize(zSql, nSql, prepFlags);
  z = sqlite3DbMallocRawNN(db, nZ);
  if( z==0 ) return;
  sqlite3HashInit(&inHash);
  for(i=j=0; i<nSql && zSql[i]; i+=n){
    int flags = 0;
    if( tokenType!=TK_SPACE ) prevTokenType = tokenType;
    n = sqlite3GetTokenNormalized((unsigned char*)zSql+i, &tokenType, &flags);
    switch( tokenType ){
      case TK_SPACE: {
        break;
      }
      case TK_ILLEGAL: {
        sqlite3DbFree(db, z);
        sqlite3HashClear(&inHash);
        return;
      }
      case TK_STRING:
      case TK_INTEGER:
      case TK_FLOAT:
      case TK_VARIABLE:
      case TK_BLOB: {
        z[j++] = '?';
        break;
      }
      case TK_LP:
      case TK_RP: {
        if( tokenType==TK_LP ){
          nParen++;
          if( prevTokenType==TK_IN ){
            assert( nParen<nSql );
            sqlite3HashInsert(&inHash, zSql+nParen, SQLITE_INT_TO_PTR(j));
          }
        }else{
          int jj;
          assert( nParen<nSql );
          jj = SQLITE_PTR_TO_INT(sqlite3HashFind(&inHash, zSql+nParen));
          if( jj>0 ){
            sqlite3HashInsert(&inHash, zSql+nParen, 0);
            assert( jj+6<nZ );
            memcpy(z+jj+1, "?,?,?", 5);
            j = jj+6;
            assert( nZ-1-j>=0 );
            assert( nZ-1-j<nZ );
            memset(z+j, 0, nZ-1-j);
          }
          nParen--;
        }
        assert( nParen>=0 );
        /* Fall through */
      }
      case TK_MINUS:
      case TK_SEMI:
      case TK_PLUS:
      case TK_STAR:
      case TK_SLASH:
      case TK_REM:
      case TK_EQ:
      case TK_LE:
      case TK_NE:
      case TK_LSHIFT:
      case TK_LT:
      case TK_RSHIFT:
      case TK_GT:
      case TK_GE:
      case TK_BITOR:
      case TK_CONCAT:
      case TK_COMMA:
      case TK_BITAND:
      case TK_BITNOT:
      case TK_DOT:
      case TK_IN:
      case TK_IS:
      case TK_NOT:
      case TK_NULL:
      case TK_ID: {
        if( tokenType==TK_NULL ){
          if( prevTokenType==TK_IS || prevTokenType==TK_NOT ){
            /* NULL is a keyword in this case, not a literal value */
          }else{
            /* Here the NULL is a literal value */
            z[j++] = '?';
            break;
          }
        }
        if( j>0 && sqlite3IsIdChar(z[j-1]) && sqlite3IsIdChar(zSql[i]) ){
          z[j++] = ' ';
        }
        if( tokenType==TK_ID ){
          int i2 = i, n2 = n, rc = SQLITE_OK;
          if( nParen>0 ){
            assert( nParen<nSql );
            sqlite3HashInsert(&inHash, zSql+nParen, 0);
          }
          if( flags&SQLITE_TOKEN_QUOTED ){ i2++; n2-=2; }
          if( shouldTreatAsIdentifier(db, zSql+i2, n2, &rc)==0 ){
            if( rc!=SQLITE_OK ){
              sqlite3DbFree(db, z);
              sqlite3HashClear(&inHash);
              return;
            }
            if( sqlite3_keyword_check(zSql+i2, n2)==0 ){
              z[j++] = '?';
              break;
            }
          }
        }
        copyNormalizedToken(zSql, i, n, flags, z, &j);
        break;
      }
    }
  }
  assert( j<nZ && "one" );
  while( j>0 && z[j-1]==' ' ){ j--; }
  if( j>0 && z[j-1]!=';' ){ z[j++] = ';'; }
  z[j] = 0;
  assert( j<nZ && "two" );
  pVdbe->zNormSql = z;
  sqlite3HashClear(&inHash);
}
#endif /* SQLITE_ENABLE_NORMALIZE */

/*
** Rerun the compilation of a statement after a schema change.
**
** If the statement is successfully recompiled, return SQLITE_OK. Otherwise,
** if the statement cannot be recompiled because another connection has
** locked the sqlite3_master table, return SQLITE_LOCKED. If any other error
** occurs, return SQLITE_SCHEMA.
................................................................................
  int i;
  int nDefer = 0;
  ExprList *pExtra = 0;
  for(i=0; i<pEList->nExpr; i++){
    struct ExprList_item *pItem = &pEList->a[i];
    if( pItem->u.x.iOrderByCol==0 ){
      Expr *pExpr = pItem->pExpr;
      Table *pTab = pExpr->y.pTab;
      if( pExpr->op==TK_COLUMN && pExpr->iColumn>=0 && pTab && !IsVirtual(pTab)
       && (pTab->aCol[pExpr->iColumn].colFlags & COLFLAG_SORTERREF)
      ){
        int j;
        for(j=0; j<nDefer; j++){
          if( pSort->aDefer[j].iCsr==pExpr->iTable ) break;
        }
................................................................................
              pPk = sqlite3PrimaryKeyIndex(pTab);
              nKey = pPk->nKeyCol;
            }
            for(k=0; k<nKey; k++){
              Expr *pNew = sqlite3PExpr(pParse, TK_COLUMN, 0, 0);
              if( pNew ){
                pNew->iTable = pExpr->iTable;
                pNew->y.pTab = pExpr->y.pTab;
                pNew->iColumn = pPk ? pPk->aiColumn[k] : -1;
                pExtra = sqlite3ExprListAppend(pParse, pExtra, pNew);
              }
            }
            pSort->aDefer[nDefer].pTab = pExpr->y.pTab;
            pSort->aDefer[nDefer].iCsr = pExpr->iTable;
            pSort->aDefer[nDefer].nKey = nKey;
            nDefer++;
          }
        }
        pItem->bSorterRef = 1;
      }
................................................................................
        ** This is not a problem, as the column type of "t1.col" is never
        ** used. When columnType() is called on the expression 
        ** "(SELECT t1.col)", the correct type is returned (see the TK_SELECT
        ** branch below.  */
        break;
      }

      assert( pTab && pExpr->y.pTab==pTab );
      if( pS ){
        /* The "table" is actually a sub-select or a view in the FROM clause
        ** of the SELECT statement. Return the declaration type and origin
        ** data for the result-set column of the sub-select.
        */
        if( iCol>=0 && iCol<pS->pEList->nExpr ){
          /* If iCol is less than zero, then the expression requests the
................................................................................
  srcName = (db->flags & SQLITE_ShortColNames)!=0 || fullName;
  sqlite3VdbeSetNumCols(v, pEList->nExpr);
  for(i=0; i<pEList->nExpr; i++){
    Expr *p = pEList->a[i].pExpr;

    assert( p!=0 );
    assert( p->op!=TK_AGG_COLUMN );  /* Agg processing has not run yet */
    assert( p->op!=TK_COLUMN || p->y.pTab!=0 ); /* Covering idx not yet coded */
    if( pEList->a[i].zName ){
      /* An AS clause always takes first priority */
      char *zName = pEList->a[i].zName;
      sqlite3VdbeSetColName(v, i, COLNAME_NAME, zName, SQLITE_TRANSIENT);
    }else if( srcName && p->op==TK_COLUMN ){
      char *zCol;
      int iCol = p->iColumn;
      pTab = p->y.pTab;
      assert( pTab!=0 );
      if( iCol<0 ) iCol = pTab->iPKey;
      assert( iCol==-1 || (iCol>=0 && iCol<pTab->nCol) );
      if( iCol<0 ){
        zCol = "rowid";
      }else{
        zCol = pTab->aCol[iCol].zName;
................................................................................
        pColExpr = pColExpr->pRight;
        assert( pColExpr!=0 );
      }
      assert( pColExpr->op!=TK_AGG_COLUMN );
      if( pColExpr->op==TK_COLUMN ){
        /* For columns use the column name name */
        int iCol = pColExpr->iColumn;
        Table *pTab = pColExpr->y.pTab;
        assert( pTab!=0 );
        if( iCol<0 ) iCol = pTab->iPKey;
        zName = iCol>=0 ? pTab->aCol[iCol].zName : "rowid";
      }else if( pColExpr->op==TK_ID ){
        assert( !ExprHasProperty(pColExpr, EP_IntValue) );
        zName = pColExpr->u.zToken;
      }else{
................................................................................
  int eDest = SRT_Fifo;         /* How to write to Queue */
  SelectDest destQueue;         /* SelectDest targetting the Queue table */
  int i;                        /* Loop counter */
  int rc;                       /* Result code */
  ExprList *pOrderBy;           /* The ORDER BY clause */
  Expr *pLimit;                 /* Saved LIMIT and OFFSET */
  int regLimit, regOffset;      /* Registers used by LIMIT and OFFSET */

#ifndef SQLITE_OMIT_WINDOWFUNC
  if( p->pWin ){
    sqlite3ErrorMsg(pParse, "cannot use window functions in recursive queries");
    return;
  }
#endif

  /* Obtain authorization to do a recursive query */
  if( sqlite3AuthCheck(pParse, SQLITE_RECURSIVE, 0, 0, 0) ) return;

  /* Process the LIMIT and OFFSET clauses, if they exist */
  addrBreak = sqlite3VdbeMakeLabel(v);
  p->nSelectRow = 320;  /* 4 billion rows */
................................................................................
#endif

  return 1;
}
#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */

/*
** A structure to keep track of all of the column values that are fixed to
** a known value due to WHERE clause constraints of the form COLUMN=VALUE.
*/
typedef struct WhereConst WhereConst;
struct WhereConst {
  Parse *pParse;   /* Parsing context */
  int nConst;      /* Number for COLUMN=CONSTANT terms */
  int nChng;       /* Number of times a constant is propagated */
  Expr **apExpr;   /* [i*2] is COLUMN and [i*2+1] is VALUE */
};

/*
** Add a new entry to the pConst object.  Except, do not add duplicate
** pColumn entires.
*/
static void constInsert(
  WhereConst *pConst,      /* The WhereConst into which we are inserting */

  Expr *pColumn,           /* The COLUMN part of the constraint */
  Expr *pValue             /* The VALUE part of the constraint */
){
  int i;
  assert( pColumn->op==TK_COLUMN );

  /* 2018-10-25 ticket [cf5ed20f]
  ** Make sure the same pColumn is not inserted more than once */
  for(i=0; i<pConst->nConst; i++){
    const Expr *pExpr = pConst->apExpr[i*2];
    assert( pExpr->op==TK_COLUMN );
    if( pExpr->iTable==pColumn->iTable
     && pExpr->iColumn==pColumn->iColumn
    ){
      return;  /* Already present.  Return without doing anything. */
    }
  }

  pConst->nConst++;
  pConst->apExpr = sqlite3DbReallocOrFree(pConst->pParse->db, pConst->apExpr,
                         pConst->nConst*2*sizeof(Expr*));
  if( pConst->apExpr==0 ){
    pConst->nConst = 0;
  }else{
................................................................................
  }
#ifndef SQLITE_OMIT_FLOATING_POINT
  if( pTab->aCol[i].affinity==SQLITE_AFF_REAL ){
    sqlite3VdbeAddOp1(v, OP_RealAffinity, iReg);
  }
#endif
}

/*
** Check to see if column iCol of index pIdx references any of the
** columns defined by aXRef and chngRowid.  Return true if it does
** and false if not.  This is an optimization.  False-positives are a
** performance degradation, but false-negatives can result in a corrupt
** index and incorrect answers.
**
** aXRef[j] will be non-negative if column j of the original table is
** being updated.  chngRowid will be true if the rowid of the table is
** being updated.
*/
static int indexColumnIsBeingUpdated(
  Index *pIdx,      /* The index to check */
  int iCol,         /* Which column of the index to check */
  int *aXRef,       /* aXRef[j]>=0 if column j is being updated */
  int chngRowid     /* true if the rowid is being updated */
){
  i16 iIdxCol = pIdx->aiColumn[iCol];
  assert( iIdxCol!=XN_ROWID ); /* Cannot index rowid */
  if( iIdxCol>=0 ){
    return aXRef[iIdxCol]>=0;
  }
  assert( iIdxCol==XN_EXPR );
  assert( pIdx->aColExpr!=0 );
  assert( pIdx->aColExpr->a[iCol].pExpr!=0 );
  return sqlite3ExprReferencesUpdatedColumn(pIdx->aColExpr->a[iCol].pExpr,
                                            aXRef,chngRowid);
}

/*
** Check to see if index pIdx is a partial index whose conditional
** expression might change values due to an UPDATE.  Return true if
** the index is subject to change and false if the index is guaranteed
** to be unchanged.  This is an optimization.  False-positives are a
** performance degradation, but false-negatives can result in a corrupt
** index and incorrect answers.
**
** aXRef[j] will be non-negative if column j of the original table is
** being updated.  chngRowid will be true if the rowid of the table is
** being updated.
*/
static int indexWhereClauseMightChange(
  Index *pIdx,      /* The index to check */
  int *aXRef,       /* aXRef[j]>=0 if column j is being updated */
  int chngRowid     /* true if the rowid is being updated */
){
  if( pIdx->pPartIdxWhere==0 ) return 0;
  return sqlite3ExprReferencesUpdatedColumn(pIdx->pPartIdxWhere,
                                            aXRef, chngRowid);
}

/*
** Process an UPDATE statement.
**
**   UPDATE OR IGNORE table_wxyz SET a=b, c=d WHERE e<5 AND f NOT NULL;
**          \_______/ \________/     \______/       \________________/
*            onError   pTabList      pChanges             pWhere
................................................................................
  pTabList->a[0].colUsed = IsVirtual(pTab) ? ALLBITS : 0;

  hasFK = sqlite3FkRequired(pParse, pTab, aXRef, chngKey);

  /* There is one entry in the aRegIdx[] array for each index on the table
  ** being updated.  Fill in aRegIdx[] with a register number that will hold
  ** the key for accessing each index.


  */
  for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
    int reg;
    if( chngKey || hasFK>1 || pIdx==pPk
     || indexWhereClauseMightChange(pIdx,aXRef,chngRowid)
    ){
      reg = ++pParse->nMem;
      pParse->nMem += pIdx->nColumn;
    }else{
      reg = 0;
      for(i=0; i<pIdx->nKeyCol; i++){
        if( indexColumnIsBeingUpdated(pIdx, i, aXRef, chngRowid) ){

          reg = ++pParse->nMem;
          pParse->nMem += pIdx->nColumn;
          if( (onError==OE_Replace)
           || (onError==OE_Default && pIdx->onError==OE_Replace) 
          ){
            bReplace = 1;
          }
................................................................................

  /* Populate the argument registers. */
  for(i=0; i<pTab->nCol; i++){
    if( aXRef[i]>=0 ){
      sqlite3ExprCode(pParse, pChanges->a[aXRef[i]].pExpr, regArg+2+i);
    }else{
      sqlite3VdbeAddOp3(v, OP_VColumn, iCsr, i, regArg+2+i);
      sqlite3VdbeChangeP5(v, OPFLAG_NOCHNG);/* Enable sqlite3_vtab_nochange() */
    }
  }
  if( HasRowid(pTab) ){
    sqlite3VdbeAddOp2(v, OP_Rowid, iCsr, regArg);
    if( pRowid ){
      sqlite3ExprCode(pParse, pRowid, regArg+1);
    }else{
................................................................................
  saved_flags = db->flags;
  saved_mDbFlags = db->mDbFlags;
  saved_nChange = db->nChange;
  saved_nTotalChange = db->nTotalChange;
  saved_mTrace = db->mTrace;
  db->flags |= SQLITE_WriteSchema | SQLITE_IgnoreChecks;
  db->mDbFlags |= DBFLAG_PreferBuiltin | DBFLAG_Vacuum;
  db->flags &= ~(SQLITE_ForeignKeys | SQLITE_ReverseOrder
                   | SQLITE_Defensive | SQLITE_CountRows);
  db->mTrace = 0;

  zDbMain = db->aDb[iDb].zDbSName;
  pMain = db->aDb[iDb].pBt;
  isMemDb = sqlite3PagerIsMemdb(sqlite3BtreePager(pMain));

  /* Attach the temporary database as 'vacuum_db'. The synchronous pragma
................................................................................
SQLITE_PRIVATE void sqlite3VtabBeginParse(
  Parse *pParse,        /* Parsing context */
  Token *pName1,        /* Name of new table, or database name */
  Token *pName2,        /* Name of new table or NULL */
  Token *pModuleName,   /* Name of the module for the virtual table */
  int ifNotExists       /* No error if the table already exists */
){

  Table *pTable;        /* The new virtual table */
  sqlite3 *db;          /* Database connection */

  sqlite3StartTable(pParse, pName1, pName2, 0, 0, 1, ifNotExists);
  pTable = pParse->pNewTable;
  if( pTable==0 ) return;
  assert( 0==pTable->pIndex );

  db = pParse->db;



  assert( pTable->nModuleArg==0 );
  addModuleArgument(db, pTable, sqlite3NameFromToken(db, pModuleName));
  addModuleArgument(db, pTable, 0);
  addModuleArgument(db, pTable, sqlite3DbStrDup(db, pTable->zName));
  assert( (pParse->sNameToken.z==pName2->z && pName2->z!=0)
       || (pParse->sNameToken.z==pName1->z && pName2->z==0)
................................................................................
#ifndef SQLITE_OMIT_AUTHORIZATION
  /* Creating a virtual table invokes the authorization callback twice.
  ** The first invocation, to obtain permission to INSERT a row into the
  ** sqlite_master table, has already been made by sqlite3StartTable().
  ** The second call, to obtain permission to create the table, is made now.
  */
  if( pTable->azModuleArg ){
    int iDb = sqlite3SchemaToIndex(db, pTable->pSchema);
    assert( iDb>=0 ); /* The database the table is being created in */
    sqlite3AuthCheck(pParse, SQLITE_CREATE_VTABLE, pTable->zName, 
            pTable->azModuleArg[0], pParse->db->aDb[iDb].zDbSName);
  }
#endif
}

/*
................................................................................
  void *pArg = 0;
  FuncDef *pNew;
  int rc = 0;

  /* Check to see the left operand is a column in a virtual table */
  if( NEVER(pExpr==0) ) return pDef;
  if( pExpr->op!=TK_COLUMN ) return pDef;
  pTab = pExpr->y.pTab;
  if( pTab==0 ) return pDef;
  if( !IsVirtual(pTab) ) return pDef;
  pVtab = sqlite3GetVTable(db, pTab)->pVtab;
  assert( pVtab!=0 );
  assert( pVtab->pModule!=0 );
  pMod = (sqlite3_module *)pVtab->pModule;
  if( pMod->xFindFunction==0 ) return pDef;
................................................................................
  WhereLoop *pNew;          /* Template WhereLoop */
  WhereOrSet *pOrSet;       /* Record best loops here, if not NULL */
#ifdef SQLITE_ENABLE_STAT3_OR_STAT4
  UnpackedRecord *pRec;     /* Probe for stat4 (if required) */
  int nRecValid;            /* Number of valid fields currently in pRec */
#endif
  unsigned int bldFlags;    /* SQLITE_BLDF_* flags */
  unsigned int iPlanLimit;  /* Search limiter */
};

/* Allowed values for WhereLoopBuider.bldFlags */
#define SQLITE_BLDF_INDEXED  0x0001   /* An index is used */
#define SQLITE_BLDF_UNIQUE   0x0002   /* All keys of a UNIQUE index used */

/* The WhereLoopBuilder.iPlanLimit is used to limit the number of
** index+constraint combinations the query planner will consider for a
** particular query.  If this parameter is unlimited, then certain
** pathological queries can spend excess time in the sqlite3WhereBegin()
** routine.  The limit is high enough that is should not impact real-world
** queries.
**
** SQLITE_QUERY_PLANNER_LIMIT is the baseline limit.  The limit is
** increased by SQLITE_QUERY_PLANNER_LIMIT_INCR before each term of the FROM
** clause is processed, so that every table in a join is guaranteed to be
** able to propose a some index+constraint combinations even if the initial
** baseline limit was exhausted by prior tables of the join.
*/
#ifndef SQLITE_QUERY_PLANNER_LIMIT
# define SQLITE_QUERY_PLANNER_LIMIT 20000
#endif
#ifndef SQLITE_QUERY_PLANNER_LIMIT_INCR
# define SQLITE_QUERY_PLANNER_LIMIT_INCR 1000
#endif

/*
** The WHERE clause processing routine has two halves.  The
** first part does the start of the WHERE loop and the second
** half does the tail of the WHERE loop.  An instance of
** this structure is returned by the first half and passed
** into the second half to give some continuity.
................................................................................
    ExprList *pLhs = 0;         /* New LHS after mods */
    int i;                      /* Loop counter */
    Select *pSelect;            /* Pointer to the SELECT on the RHS */

    for(i=iEq; i<pLoop->nLTerm; i++){
      if( pLoop->aLTerm[i]->pExpr==pX ){
        int iField = pLoop->aLTerm[i]->iField - 1;
        if( pOrigRhs->a[iField].pExpr==0 ) continue; /* Duplicate PK column */
        pRhs = sqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr);
        pOrigRhs->a[iField].pExpr = 0;
        assert( pOrigLhs->a[iField].pExpr!=0 );
        pLhs = sqlite3ExprListAppend(pParse, pLhs, pOrigLhs->a[iField].pExpr);
        pOrigLhs->a[iField].pExpr = 0;
      }
    }
................................................................................
*/
static int whereIndexExprTransNode(Walker *p, Expr *pExpr){
  IdxExprTrans *pX = p->u.pIdxTrans;
  if( sqlite3ExprCompare(0, pExpr, pX->pIdxExpr, pX->iTabCur)==0 ){
    pExpr->op = TK_COLUMN;
    pExpr->iTable = pX->iIdxCur;
    pExpr->iColumn = pX->iIdxCol;
    pExpr->y.pTab = 0;
    return WRC_Prune;
  }else{
    return WRC_Continue;
  }
}

/*
................................................................................
        */
        if( sqlite3Isdigit(zNew[0])
         || zNew[0]=='-'
         || (zNew[0]+1=='0' && iTo==1)
        ){
          if( pLeft->op!=TK_COLUMN 
           || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT 
           || IsVirtual(pLeft->y.pTab)  /* Value might be numeric */
          ){
            sqlite3ExprDelete(db, pPrefix);
            sqlite3ValueFree(pVal);
            return 0;
          }
        }
      }
................................................................................
    ** virtual table on their second argument, which is the same as
    ** the left-hand side operand in their in-fix form.
    **
    **       vtab_column MATCH expression
    **       MATCH(expression,vtab_column)
    */
    pCol = pList->a[1].pExpr;
    if( pCol->op==TK_COLUMN && IsVirtual(pCol->y.pTab) ){
      for(i=0; i<ArraySize(aOp); i++){
        if( sqlite3StrICmp(pExpr->u.zToken, aOp[i].zOp)==0 ){
          *peOp2 = aOp[i].eOp2;
          *ppRight = pList->a[0].pExpr;
          *ppLeft = pCol;
          return 1;
        }
................................................................................
    **      OVERLOADED(vtab_column,expression)
    **
    ** Historically, xFindFunction expected to see lower-case function
    ** names.  But for this use case, xFindFunction is expected to deal
    ** with function names in an arbitrary case.
    */
    pCol = pList->a[0].pExpr;
    if( pCol->op==TK_COLUMN && IsVirtual(pCol->y.pTab) ){
      sqlite3_vtab *pVtab;
      sqlite3_module *pMod;
      void (*xNotUsed)(sqlite3_context*,int,sqlite3_value**);
      void *pNotUsed;
      pVtab = sqlite3GetVTable(db, pCol->y.pTab)->pVtab;
      assert( pVtab!=0 );
      assert( pVtab->pModule!=0 );
      pMod = (sqlite3_module *)pVtab->pModule;
      if( pMod->xFindFunction!=0 ){
        i = pMod->xFindFunction(pVtab,2, pExpr->u.zToken, &xNotUsed, &pNotUsed);
        if( i>=SQLITE_INDEX_CONSTRAINT_FUNCTION ){
          *peOp2 = i;
................................................................................
        }
      }
    }
  }else if( pExpr->op==TK_NE || pExpr->op==TK_ISNOT || pExpr->op==TK_NOTNULL ){
    int res = 0;
    Expr *pLeft = pExpr->pLeft;
    Expr *pRight = pExpr->pRight;
    if( pLeft->op==TK_COLUMN && IsVirtual(pLeft->y.pTab) ){
      res++;
    }
    if( pRight && pRight->op==TK_COLUMN && IsVirtual(pRight->y.pTab) ){
      res++;
      SWAP(Expr*, pLeft, pRight);
    }
    *ppLeft = pLeft;
    *ppRight = pRight;
    if( pExpr->op==TK_NE ) *peOp2 = SQLITE_INDEX_CONSTRAINT_NE;
    if( pExpr->op==TK_ISNOT ) *peOp2 = SQLITE_INDEX_CONSTRAINT_ISNOT;
................................................................................
  ** virtual term of that form.
  **
  ** Note that the virtual term must be tagged with TERM_VNULL.
  */
  if( pExpr->op==TK_NOTNULL
   && pExpr->pLeft->op==TK_COLUMN
   && pExpr->pLeft->iColumn>=0
   && !ExprHasProperty(pExpr, EP_FromJoin)
   && OptimizationEnabled(db, SQLITE_Stat34)
  ){
    Expr *pNewExpr;
    Expr *pLeft = pExpr->pLeft;
    int idxNew;
    WhereTerm *pNewTerm;

................................................................................
  Expr *pTerm;
  if( pItem->fg.isTabFunc==0 ) return;
  pTab = pItem->pTab;
  assert( pTab!=0 );
  pArgs = pItem->u1.pFuncArg;
  if( pArgs==0 ) return;
  for(j=k=0; j<pArgs->nExpr; j++){
    Expr *pRhs;
    while( k<pTab->nCol && (pTab->aCol[k].colFlags & COLFLAG_HIDDEN)==0 ){k++;}
    if( k>=pTab->nCol ){
      sqlite3ErrorMsg(pParse, "too many arguments on %s() - max %d",
                      pTab->zName, j);
      return;
    }
    pColRef = sqlite3ExprAlloc(pParse->db, TK_COLUMN, 0, 0);
    if( pColRef==0 ) return;
    pColRef->iTable = pItem->iCursor;
    pColRef->iColumn = k++;
    pColRef->y.pTab = pTab;
    pRhs = sqlite3PExpr(pParse, TK_UPLUS, 
        sqlite3ExprDup(pParse->db, pArgs->a[j].pExpr, 0), 0);
    pTerm = sqlite3PExpr(pParse, TK_EQ, pColRef, pRhs);
    whereClauseInsert(pWC, pTerm, TERM_DYNAMIC);
  }
}

/************** End of whereexpr.c *******************************************/
/************** Begin file where.c *******************************************/
/*
................................................................................
  if( pPartial ) sqlite3VdbeResolveLabel(v, iContinue);
  if( pTabItem->fg.viaCoroutine ){
    sqlite3VdbeChangeP2(v, addrCounter, regBase+n);
    testcase( pParse->db->mallocFailed );
    translateColumnToCopy(pParse, addrTop, pLevel->iTabCur,
                          pTabItem->regResult, 1);
    sqlite3VdbeGoto(v, addrTop);

  }else{
    sqlite3VdbeAddOp2(v, OP_Next, pLevel->iTabCur, addrTop+1); VdbeCoverage(v);
  }
  sqlite3VdbeChangeP5(v, SQLITE_STMTSTATUS_AUTOINDEX);
  sqlite3VdbeJumpHere(v, addrTop);
  sqlite3ReleaseTempReg(pParse, regRecord);
  
................................................................................
**    (4)  The template has the same or lower cost than the current loop
*/
static int whereLoopInsert(WhereLoopBuilder *pBuilder, WhereLoop *pTemplate){
  WhereLoop **ppPrev, *p;
  WhereInfo *pWInfo = pBuilder->pWInfo;
  sqlite3 *db = pWInfo->pParse->db;
  int rc;

  /* Stop the search once we hit the query planner search limit */
  if( pBuilder->iPlanLimit==0 ){
    WHERETRACE(0xffffffff,("=== query planner search limit reached ===\n"));
    if( pBuilder->pOrSet ) pBuilder->pOrSet->n = 0;
    return SQLITE_DONE;
  }
  pBuilder->iPlanLimit--;

  /* If pBuilder->pOrSet is defined, then only keep track of the costs
  ** and prereqs.
  */
  if( pBuilder->pOrSet!=0 ){
    if( pTemplate->nLTerm ){
#if WHERETRACE_ENABLED
................................................................................
  int rc = SQLITE_OK;
  WhereLoop *pNew;
  u8 priorJointype = 0;

  /* Loop over the tables in the join, from left to right */
  pNew = pBuilder->pNew;
  whereLoopInit(pNew);
  pBuilder->iPlanLimit = SQLITE_QUERY_PLANNER_LIMIT;
  for(iTab=0, pItem=pTabList->a; pItem<pEnd; iTab++, pItem++){
    Bitmask mUnusable = 0;
    pNew->iTab = iTab;
    pBuilder->iPlanLimit += SQLITE_QUERY_PLANNER_LIMIT_INCR;
    pNew->maskSelf = sqlite3WhereGetMask(&pWInfo->sMaskSet, pItem->iCursor);
    if( ((pItem->fg.jointype|priorJointype) & (JT_LEFT|JT_CROSS))!=0 ){
      /* This condition is true when pItem is the FROM clause term on the
      ** right-hand-side of a LEFT or CROSS JOIN.  */
      mPrereq = mPrior;
    }
    priorJointype = pItem->fg.jointype;
................................................................................
    {
      rc = whereLoopAddBtree(pBuilder, mPrereq);
    }
    if( rc==SQLITE_OK && pBuilder->pWC->hasOr ){
      rc = whereLoopAddOr(pBuilder, mPrereq, mUnusable);
    }
    mPrior |= pNew->maskSelf;
    if( rc || db->mallocFailed ){
      if( rc==SQLITE_DONE ){
        /* We hit the query planner search limit set by iPlanLimit */
        sqlite3_log(SQLITE_WARNING, "abbreviated query algorithm search");
        rc = SQLITE_OK;
      }else{
        break;
      }
    }
  }

  whereLoopClear(db, pNew);
  return rc;
}

/*
................................................................................
      if( i==nSrc ) return WRC_Continue;
    }
  }

  switch( pExpr->op ){

    case TK_FUNCTION:
      if( !ExprHasProperty(pExpr, EP_WinFunc) ){
        break;
      }else{
        Window *pWin;
        for(pWin=p->pWin; pWin; pWin=pWin->pNextWin){
          if( pExpr->y.pWin==pWin ){
            assert( pWin->pOwner==pExpr );
            return WRC_Prune;
          }
        }
      }
      /* Fall through.  */

................................................................................
** any SQL window functions, this function is a no-op. Otherwise, it 
** rewrites the SELECT statement so that window function xStep functions
** are invoked in the correct order as described under "SELECT REWRITING"
** at the top of this file.
*/
SQLITE_PRIVATE int sqlite3WindowRewrite(Parse *pParse, Select *p){
  int rc = SQLITE_OK;
  if( p->pWin && p->pPrior==0 ){
    Vdbe *v = sqlite3GetVdbe(pParse);
    sqlite3 *db = pParse->db;
    Select *pSub = 0;             /* The subquery */
    SrcList *pSrc = p->pSrc;
    Expr *pWhere = p->pWhere;
    ExprList *pGroupBy = p->pGroupBy;
    Expr *pHaving = p->pHaving;
................................................................................
}

/*
** Attach window object pWin to expression p.
*/
SQLITE_PRIVATE void sqlite3WindowAttach(Parse *pParse, Expr *p, Window *pWin){
  if( p ){
    assert( p->op==TK_FUNCTION );
    /* This routine is only called for the parser.  If pWin was not
    ** allocated due to an OOM, then the parser would fail before ever
    ** invoking this routine */
    if( ALWAYS(pWin) ){
      p->y.pWin = pWin;
      ExprSetProperty(p, EP_WinFunc);
      pWin->pOwner = p;
      if( p->flags & EP_Distinct ){
        sqlite3ErrorMsg(pParse,
           "DISTINCT is not supported for window functions");
      }
    }
  }else{
................................................................................
/*
** Allocate and return a duplicate of the Window object indicated by the
** third argument. Set the Window.pOwner field of the new object to
** pOwner.
*/
SQLITE_PRIVATE Window *sqlite3WindowDup(sqlite3 *db, Expr *pOwner, Window *p){
  Window *pNew = 0;
  if( ALWAYS(p) ){
    pNew = sqlite3DbMallocZero(db, sizeof(Window));
    if( pNew ){
      pNew->zName = sqlite3DbStrDup(db, p->zName);
      pNew->pFilter = sqlite3ExprDup(db, p->pFilter, 0);
      pNew->pPartition = sqlite3ExprListDup(db, p->pPartition, 0);
      pNew->pOrderBy = sqlite3ExprListDup(db, p->pOrderBy, 0);
      pNew->eType = p->eType;
................................................................................
      p->op = (u8)op;
      p->affinity = 0;
      p->flags = EP_Leaf;
      p->iAgg = -1;
      p->pLeft = p->pRight = 0;
      p->x.pList = 0;
      p->pAggInfo = 0;
      p->y.pTab = 0;
      p->op2 = 0;
      p->iTable = 0;
      p->iColumn = 0;



      p->u.zToken = (char*)&p[1];
      memcpy(p->u.zToken, t.z, t.n);
      p->u.zToken[t.n] = 0;
      if( sqlite3Isquote(p->u.zToken[0]) ){
        if( p->u.zToken[0]=='"' ) p->flags |= EP_DblQuoted;
        sqlite3Dequote(p->u.zToken);
      }
................................................................................
#define sqlite3ParserARG_STORE
#define sqlite3ParserCTX_SDECL Parse *pParse;
#define sqlite3ParserCTX_PDECL ,Parse *pParse
#define sqlite3ParserCTX_PARAM ,pParse
#define sqlite3ParserCTX_FETCH Parse *pParse=yypParser->pParse;
#define sqlite3ParserCTX_STORE yypParser->pParse=pParse;
#define YYFALLBACK 1
#define YYNSTATE             525
#define YYNRULE              367
#define YYNTOKEN             155
#define YY_MAX_SHIFT         524
#define YY_MIN_SHIFTREDUCE   760
#define YY_MAX_SHIFTREDUCE   1126
#define YY_ERROR_ACTION      1127
#define YY_ACCEPT_ACTION     1128
#define YY_NO_ACTION         1129
#define YY_MIN_REDUCE        1130
#define YY_MAX_REDUCE        1496
/************* End control #defines *******************************************/
#define YY_NLOOKAHEAD ((int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0])))

/* Define the yytestcase() macro to be a no-op if is not already defined
** otherwise.
**
** Applications can choose to define yytestcase() in the %include section
................................................................................
**  yy_reduce_ofst[]   For each state, the offset into yy_action for
**                     shifting non-terminals after a reduce.
**  yy_default[]       Default action for each state.
**
*********** Begin parsing tables **********************************************/
#define YY_ACTTAB_COUNT (2009)
static const YYACTIONTYPE yy_action[] = {
 /*     0 */   372,  105,  102,  197,  105,  102,  197,  519, 1128,    1,
 /*    10 */     1,  524,    2, 1132,  519, 1196, 1175, 1460,  275,  374,
 /*    20 */   127, 1393, 1201, 1201, 1196, 1170,  178, 1209,   64,   64,
 /*    30 */   481,  891,  326,  432,  352,   37,   37,  812,  366,  892,
 /*    40 */   513,  513,  513,  112,  113,  103, 1104, 1104,  957,  960,
 /*    50 */   950,  950,  110,  110,  111,  111,  111,  111,  369,  252,
 /*    60 */   252,  519,  252,  252,  501,  519,  313,  519,  463,  519,
 /*    70 */  1083,  495,  516,  482,    6,  516,  813,  134,  502,  228,
 /*    80 */   194,  432,   37,   37,  519,  208,   64,   64,   64,   64,
 /*    90 */    13,   13,  109,  109,  109,  109,  108,  108,  107,  107,
 /*   100 */   107,  106,  405,  258,  385,   13,   13,  402,  401,  432,
 /*   110 */   252,  252,  374,  480,  409, 1108, 1083, 1084, 1085,  390,
 /*   120 */  1110,  394,  501,  516,  501, 1427, 1423,  308, 1109,  311,
 /*   130 */  1260,  500,  374,  503,   16,   16,  112,  113,  103, 1104,
 /*   140 */  1104,  957,  960,  950,  950,  110,  110,  111,  111,  111,
 /*   150 */   111,  262, 1111,  499, 1111,  405,  112,  113,  103, 1104,
 /*   160 */  1104,  957,  960,  950,  950,  110,  110,  111,  111,  111,
 /*   170 */   111,  129, 1429,  347, 1424,  343, 1063,  496, 1061,  263,
 /*   180 */    73,  105,  102,  197,  998,  109,  109,  109,  109,  108,
 /*   190 */   108,  107,  107,  107,  106,  405,  374,  111,  111,  111,
 /*   200 */   111,  104,  496,   89, 1436,  109,  109,  109,  109,  108,
 /*   210 */   108,  107,  107,  107,  106,  405,  111,  111,  111,  111,
 /*   220 */   112,  113,  103, 1104, 1104,  957,  960,  950,  950,  110,
 /*   230 */   110,  111,  111,  111,  111,  109,  109,  109,  109,  108,
 /*   240 */   108,  107,  107,  107,  106,  405,  114,  108,  108,  107,
 /*   250 */   107,  107,  106,  405,  109,  109,  109,  109,  108,  108,
 /*   260 */   107,  107,  107,  106,  405,  152,  403,  403,  403,  109,
 /*   270 */   109,  109,  109,  108,  108,  107,  107,  107,  106,  405,
 /*   280 */   178,  497, 1416,  438, 1041, 1490, 1083,  519, 1490,  374,
 /*   290 */   425,  301,  361,  416,   74, 1083,  109,  109,  109,  109,
 /*   300 */   108,  108,  107,  107,  107,  106,  405, 1417,   37,   37,
 /*   310 */  1435,  274,  510,  112,  113,  103, 1104, 1104,  957,  960,
 /*   320 */   950,  950,  110,  110,  111,  111,  111,  111, 1440,  524,
 /*   330 */     2, 1132, 1083, 1084, 1085,  434,  275, 1083,  127,  370,
 /*   340 */   937, 1083, 1084, 1085,  220, 1209,  917,  462,  459,  458,
 /*   350 */   396,  167,  519, 1039,  152,  449,  928,  457,  152,  878,
 /*   360 */   927,  293,  109,  109,  109,  109,  108,  108,  107,  107,
 /*   370 */   107,  106,  405,   13,   13,  261,  857,  252,  252,  227,
 /*   380 */   106,  405,  374, 1083, 1084, 1085,  315,  392, 1083,  300,
 /*   390 */   516,  927,  927,  929,  231,  327, 1259, 1392, 1427,  494,
 /*   400 */   274,  510,   12,  208,  274,  510,  112,  113,  103, 1104,
 /*   410 */  1104,  957,  960,  950,  950,  110,  110,  111,  111,  111,
 /*   420 */   111, 1444,  290, 1132,  292, 1083, 1101,  247,  275, 1102,
 /*   430 */   127,  391,  409,  393, 1083, 1084, 1085, 1209,  159,  238,
 /*   440 */   255,  325,  465,  320,  464,  225,  794,  105,  102,  197,
 /*   450 */   517,  318,  846,  846,  449,  109,  109,  109,  109,  108,
 /*   460 */   108,  107,  107,  107,  106,  405,  519,  518,  519,  252,
 /*   470 */   252, 1083, 1084, 1085,  439,  374, 1102,  937, 1464,  798,
 /*   480 */   274,  510,  516,  105,  102,  197,  340,   63,   63,   64,
 /*   490 */    64,   27,  794,  928,  291,  208, 1358,  927,  519,  112,
 /*   500 */   113,  103, 1104, 1104,  957,  960,  950,  950,  110,  110,
 /*   510 */   111,  111,  111,  111,  107,  107,  107,  106,  405,   49,
 /*   520 */    49,  519,   28, 1083,  409,  501,  425,  301,  927,  927,
 /*   530 */   929,  186,  472, 1083,  471, 1003, 1003,  446,  519, 1083,
 /*   540 */   338,  519,   45,   45, 1087,  346,  173,  168,  109,  109,
 /*   550 */   109,  109,  108,  108,  107,  107,  107,  106,  405,   13,
 /*   560 */    13,  205,   13,   13,  252,  252, 1199, 1199,  374, 1083,
 /*   570 */  1084, 1085,  791,  265,    5,  363,  498,  516,  473, 1083,
 /*   580 */  1084, 1085,  402,  401, 1083, 1083, 1084, 1085,    3,  282,
 /*   590 */  1083, 1087,  112,  113,  103, 1104, 1104,  957,  960,  950,
 /*   600 */   950,  110,  110,  111,  111,  111,  111,  252,  252, 1019,
 /*   610 */   220, 1083,  877,  462,  459,  458,  947,  947,  958,  961,
 /*   620 */   516,  252,  252,  457, 1020, 1083,  449, 1111, 1213, 1111,
 /*   630 */  1083, 1084, 1085,  519,  516,  430, 1083, 1084, 1085, 1021,
 /*   640 */   516,  109,  109,  109,  109,  108,  108,  107,  107,  107,
 /*   650 */   106,  405, 1056,  519,   50,   50,  519, 1083, 1084, 1085,
 /*   660 */   832,  374, 1055,  383,  415, 1068, 1362,  207,  412,  777,
 /*   670 */   833, 1083, 1084, 1085,   64,   64,  326,   64,   64, 1306,
 /*   680 */   951,  415,  414, 1362, 1364,  112,  113,  103, 1104, 1104,
 /*   690 */   957,  960,  950,  950,  110,  110,  111,  111,  111,  111,
 /*   700 */   298,  486,  519, 1041, 1491,  519,  438, 1491,  358, 1124,
 /*   710 */   487, 1000,  917,  489,  470, 1000,  132,  178,   33,  454,
 /*   720 */  1207,  136,  410,   64,   64,  483,   64,   64,  423,  373,
 /*   730 */   283, 1150,  252,  252,  109,  109,  109,  109,  108,  108,
 /*   740 */   107,  107,  107,  106,  405,  516,  224,  444,  415,  266,
 /*   750 */  1362,  266,  252,  252,  374,  300,  420,  286,  938,  400,
 /*   760 */   980,  474,  404,  252,  252,  516,    9,  477,  231,  504,
 /*   770 */   358, 1040, 1039, 1492,  359,  378,  516, 1125,  112,  113,
 /*   780 */   103, 1104, 1104,  957,  960,  950,  950,  110,  110,  111,
 /*   790 */   111,  111,  111,  252,  252, 1019,  519, 1351,  299,  252,
 /*   800 */   252,  252,  252, 1102,  379,  249,  516,  449,  876,  326,
 /*   810 */  1020,  484,  516,  195,  516,  438,  273,   15,   15,  519,
 /*   820 */   318,  519,   95,  519,   93, 1021,  371,  109,  109,  109,
 /*   830 */   109,  108,  108,  107,  107,  107,  106,  405,  519, 1125,
 /*   840 */    39,   39,   51,   51,   52,   52,  507,  374,  519, 1208,
 /*   850 */  1102,  922,  443,  345,  133,  440,  223,  222,  221,   53,
 /*   860 */    53,  326, 1404,  765,  766,  767,  519,  374,   88,   54,
 /*   870 */    54,  112,  113,  103, 1104, 1104,  957,  960,  950,  950,
 /*   880 */   110,  110,  111,  111,  111,  111,  411,   55,   55,  196,
 /*   890 */   519,  112,  113,  103, 1104, 1104,  957,  960,  950,  950,
 /*   900 */   110,  110,  111,  111,  111,  111,  135,  264, 1153,  380,
 /*   910 */   519,   40,   40,  519,  876,  519,  997,  519,  997,  116,
 /*   920 */   109,  109,  109,  109,  108,  108,  107,  107,  107,  106,
 /*   930 */   405,   41,   41,  519,   43,   43,   44,   44,   56,   56,
 /*   940 */   109,  109,  109,  109,  108,  108,  107,  107,  107,  106,
 /*   950 */   405,  519,  383,  519,   57,   57,  519,  803,  519,  383,
 /*   960 */   519,  449,  200,  519,  327,  519, 1401,  519, 1463,  519,
 /*   970 */  1291,  821,   58,   58,   14,   14,  519,   59,   59,  118,
 /*   980 */   118,   60,   60,  519,   46,   46,   61,   61,   62,   62,
 /*   990 */    47,   47,  519,  190,  189,   91,  519,  140,  140,  519,
 /*  1000 */   398,  519,  277, 1204,  141,  141,  519, 1119,  519,  996,
 /*  1010 */   519,  996,  519,   69,   69,  374,  278,   48,   48,  259,
 /*  1020 */    65,   65,  119,  119,  246,  246,  260,   66,   66,  120,
 /*  1030 */   120,  121,  121,  117,  117,  374,  519,  516,  387,  112,
 /*  1040 */   113,  103, 1104, 1104,  957,  960,  950,  950,  110,  110,
 /*  1050 */   111,  111,  111,  111,  519,  876,  519,  139,  139,  112,
 /*  1060 */   113,  103, 1104, 1104,  957,  960,  950,  950,  110,  110,
 /*  1070 */   111,  111,  111,  111, 1291,  138,  138,  125,  125,  519,
 /*  1080 */    12,  519,  281, 1291,  519,  449,  131, 1291,  109,  109,
 /*  1090 */   109,  109,  108,  108,  107,  107,  107,  106,  405,  519,
 /*  1100 */   124,  124,  122,  122,  519,  123,  123,  519,  109,  109,
 /*  1110 */   109,  109,  108,  108,  107,  107,  107,  106,  405,  519,
 /*  1120 */    68,   68,  467,  787,  519,   70,   70,  306,   67,   67,
 /*  1130 */  1036,  253,  253,  360, 1291,  191,  196, 1437,  469, 1305,
 /*  1140 */    38,   38,  388,   94,  516,   42,   42,  177,  852,  274,
 /*  1150 */   510,  389,  424,  851, 1360,  445,  512,  380,  381,  153,
 /*  1160 */   427,  876,  436,  374,  224,  251,  194,  891,  182,  297,
 /*  1170 */   787,  852,   88,  254,  470,  892,  851,  919,  811,  810,
 /*  1180 */   230, 1245,  914,  374,   17,  417,  801,  112,  113,  103,
 /*  1190 */  1104, 1104,  957,  960,  950,  950,  110,  110,  111,  111,
 /*  1200 */   111,  111,  399,  818,  819, 1179,  987,  112,  101,  103,
 /*  1210 */  1104, 1104,  957,  960,  950,  950,  110,  110,  111,  111,
 /*  1220 */   111,  111,  379,  426,  431,  433,  302,  230,  230,   88,
 /*  1230 */  1244,  455,  316,  801,  226,   88,  109,  109,  109,  109,
 /*  1240 */   108,  108,  107,  107,  107,  106,  405,   86,  437,  983,
 /*  1250 */   931,  885,  226,  987,  230,  419,  109,  109,  109,  109,
 /*  1260 */   108,  108,  107,  107,  107,  106,  405,  324,  849,  785,
 /*  1270 */   850,  100,  130,  100, 1407,  294,  374,  323, 1381, 1380,
 /*  1280 */   441, 1453,  303, 1241,  307,  310,  312,  314, 1192, 1178,
 /*  1290 */  1177, 1176,  319,  328,  329, 1232,  374,  931, 1253,  271,
 /*  1300 */  1290,  113,  103, 1104, 1104,  957,  960,  950,  950,  110,
 /*  1310 */   110,  111,  111,  111,  111, 1228, 1239,  506,  505, 1296,
 /*  1320 */  1225, 1159,  103, 1104, 1104,  957,  960,  950,  950,  110,
 /*  1330 */   110,  111,  111,  111,  111, 1152, 1141, 1140, 1142, 1447,
 /*  1340 */   450,  244,  184,   98,  511,  188,    4,  357,  331,  109,
 /*  1350 */   109,  109,  109,  108,  108,  107,  107,  107,  106,  405,
 /*  1360 */   514,  333,  335,  199,  418,  460,  296,  289,  322,  109,
 /*  1370 */   109,  109,  109,  108,  108,  107,  107,  107,  106,  405,
 /*  1380 */    11,  285, 1283,  406,  365,  192, 1175, 1355,  435,  509,
 /*  1390 */   350, 1354,  337,   98,  511,  508,    4,  187, 1450, 1119,
 /*  1400 */   233, 1400,  155, 1398, 1116,  152,   72,   75,  382,  429,
 /*  1410 */   514,  165,  115,  499,  937, 1280, 1275,   30,  149,  157,
 /*  1420 */    96,   96,    8,  284,   86,  288,  287,   97, 1272,  406,
 /*  1430 */   521,  520,  421,  406,  927,  422,  453,  210,  160,  161,
 /*  1440 */   162,  163,  362,  428, 1286,  508,  442,  214,   80,  364,
 /*  1450 */    31,  274,  510,  169, 1349,  448,  492,  245, 1369,  216,
 /*  1460 */   174,  491,  451,  309,  937,  927,  927,  929,  930,   24,
 /*  1470 */    96,   96,  305,  217,  367,  466, 1143,   97,  218,  406,
 /*  1480 */   521,  520, 1195, 1194,  927, 1193,  395,  803,   98,  511,
 /*  1490 */   368,    4, 1186, 1167, 1185,  269, 1166,  321, 1165, 1462,
 /*  1500 */   397,  270,  485,  476,  479,  514,   85,  232, 1236,   98,
 /*  1510 */   511,  330,    4,  490,  340,  927,  927,  929,  930,   24,
 /*  1520 */  1439, 1072,  408, 1237,  339,  256,  514, 1418,  406,   10,
 /*  1530 */   356,  356,  355,  241,  353,  181,   92,  774, 1235, 1218,
 /*  1540 */   508,  342,   87,  332,  334, 1217, 1234,  336,  344,  406,
 /*  1550 */   201,  492,  280,  183,  488,  348,  493,  349,  239,  937,
 /*  1560 */   279,  508, 1335,   29, 1149,   96,   96,  522, 1078,  272,
 /*  1570 */   243,  240,   97,  242,  406,  521,  520,  523, 1138,  927,
 /*  1580 */   937,  142, 1133, 1385,  143, 1386,   96,   96,  856,  376,
 /*  1590 */   203,  761,  154,   97, 1384,  406,  521,  520,  204,  377,
 /*  1600 */   927,  146,  144, 1383,  407, 1163, 1162,  128,  202,   71,
 /*  1610 */   927,  927,  929,  930,   24,  267, 1160,  185,  276,  198,
 /*  1620 */   257,   98,  511,  126,    4,  911,  995,  156,  993,  145,
 /*  1630 */   206,  927,  927,  929,  930,   24,  158,  835,  514,  209,
 /*  1640 */   295, 1009,  375,  164,  915,  147,  384,  274,  510,  386,
 /*  1650 */   166,   76,   77,   78,  148, 1012,  211,  212, 1008,  137,
 /*  1660 */    18,  406,   79,  213,  304, 1001, 1113,  230,  447,  215,
 /*  1670 */   413,  171,   32,  508,  323,  776,  170,  452,  172,  219,
 /*  1680 */   456,   81,   19,   20,  492,  317,  461,   82,  268,  491,
 /*  1690 */   150,  814,  937,  179,   83,  468,  151,  180,   96,   96,
 /*  1700 */   963,   84, 1044,   34,  475,   97, 1045,  406,  521,  520,
 /*  1710 */  1072,  408,  927,   35,  256,  884,  478,  248,  193,  356,
 /*  1720 */   356,  355,  241,  353,  250,  175,  774,  229,  879,   21,
 /*  1730 */   100,   98,  511,   22,    4, 1058, 1049,  176,  341,  201,
 /*  1740 */     7,  280, 1062,  927,  927,  929,  930,   24,  514,  279,
 /*  1750 */    88, 1060,   23,  978,  964,  962,  966, 1018, 1017,  967,
 /*  1760 */   235,   90,  511,  234,    4,   25,   36,  515,  932,  786,
 /*  1770 */   845,  406,   99,   26,  236,  237,  351, 1455,  514,  203,
 /*  1780 */   354, 1454, 1073,  508, 1129, 1129, 1129,  204, 1129, 1129,
 /*  1790 */   146, 1129, 1129, 1129, 1129, 1129, 1129,  202, 1129, 1129,
 /*  1800 */  1129,  406,  937, 1129, 1129, 1129, 1129, 1129,   96,   96,
 /*  1810 */  1129, 1129, 1129,  508, 1129,   97, 1129,  406,  521,  520,
 /*  1820 */  1129, 1129,  927, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
 /*  1830 */  1129,  375,  937, 1129, 1129, 1129,  274,  510,   96,   96,
 /*  1840 */  1129, 1129, 1129, 1129, 1129,   97, 1129,  406,  521,  520,
 /*  1850 */  1129, 1129,  927,  927,  927,  929,  930,   24, 1129,  413,
 /*  1860 */  1129, 1129, 1129,  256, 1129, 1129, 1129, 1129,  356,  356,
 /*  1870 */   355,  241,  353, 1129, 1129,  774, 1129, 1129, 1129, 1129,
 /*  1880 */  1129, 1129, 1129,  927,  927,  929,  930,   24,  201, 1129,
 /*  1890 */   280, 1129, 1129, 1129, 1129, 1129, 1129, 1129,  279, 1129,
 /*  1900 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
 /*  1910 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
 /*  1920 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,  203, 1129,
 /*  1930 */  1129, 1129, 1129, 1129, 1129, 1129,  204, 1129, 1129,  146,
 /*  1940 */  1129, 1129, 1129, 1129, 1129, 1129,  202, 1129, 1129, 1129,
 /*  1950 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
 /*  1960 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
 /*  1970 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
 /*  1980 */   375, 1129, 1129, 1129, 1129,  274,  510, 1129, 1129, 1129,
 /*  1990 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,
 /*  2000 */  1129, 1129, 1129, 1129, 1129, 1129, 1129, 1129,  413,
};
static const YYCODETYPE yy_lookahead[] = {
 /*     0 */   184,  238,  239,  240,  238,  239,  240,  163,  155,  156,
 /*    10 */   157,  158,  159,  160,  163,  191,  192,  183,  165,   19,
 /*    20 */   167,  258,  202,  203,  200,  191,  163,  174,  184,  185,
 /*    30 */   174,   31,  163,  163,  171,  184,  185,   35,  175,   39,
 /*    40 */   179,  180,  181,   43,   44,   45,   46,   47,   48,   49,
................................................................................
 /*  1340 */   251,  250,  209,   19,   20,  182,   22,  161,  222,   92,
 /*  1350 */    93,   94,   95,   96,   97,   98,   99,  100,  101,  102,
 /*  1360 */    36,  222,  222,  260,  226,  188,  256,  226,  187,   92,
 /*  1370 */    93,   94,   95,   96,   97,   98,   99,  100,  101,  102,
 /*  1380 */   210,  213,  213,   59,  213,  196,  192,  187,  256,  244,
 /*  1390 */   212,  187,  226,   19,   20,   71,   22,  210,  166,   60,
 /*  1400 */   130,  170,  260,  170,   38,   81,  257,  257,  170,  104,
 /*  1410 */    36,   22,  137,  134,   90,  236,  217,  235,   43,  201,
 /*  1420 */    96,   97,   48,  216,  138,  213,  216,  103,  217,  105,
 /*  1430 */   106,  107,   18,   59,  110,  170,   18,  169,  204,  204,
 /*  1440 */   204,  204,  213,  213,  201,   71,  170,  169,  146,  236,
 /*  1450 */   235,  127,  128,  201,  213,   62,   82,  170,  253,  169,
 /*  1460 */    22,   87,  189,  170,   90,  141,  142,  143,  144,  145,
 /*  1470 */    96,   97,  252,  169,  189,  104,  170,  103,  169,  105,
 /*  1480 */   106,  107,  186,  186,  110,  186,   64,  115,   19,   20,
 /*  1490 */   189,   22,  194,  186,  194,  246,  188,  186,  186,  186,
 /*  1500 */   102,  246,  133,  189,  189,   36,  104,  170,  228,   19,
 /*  1510 */    20,  227,   22,   84,   22,  141,  142,  143,  144,  145,
 /*  1520 */     0,    1,    2,  228,  271,    5,   36,  269,   59,   22,
 /*  1530 */    10,   11,   12,   13,   14,  216,  146,   17,  228,  217,
 /*  1540 */    71,  216,  136,  227,  227,  217,  228,  227,  170,   59,
 /*  1550 */    30,   82,   32,  215,  135,  214,   87,  213,   25,   90,
 /*  1560 */    40,   71,  241,   26,  173,   96,   97,  172,   13,  243,
 /*  1570 */     6,  164,  103,  164,  105,  106,  107,  162,  162,  110,
 /*  1580 */    90,  176,  162,  182,  176,  182,   96,   97,   98,  266,
 /*  1590 */    70,    4,  263,  103,  182,  105,  106,  107,   78,  266,
 /*  1600 */   110,   81,  176,  182,    3,  182,  182,  190,   88,  182,
 /*  1610 */   141,  142,  143,  144,  145,  190,  182,   22,  151,   15,
 /*  1620 */    89,   19,   20,   16,   22,  128,   23,  139,   23,  119,
 /*  1630 */    24,  141,  142,  143,  144,  145,  131,   20,   36,  133,
 /*  1640 */    16,    1,  122,  131,  140,  119,   61,  127,  128,   37,
 /*  1650 */   139,   53,   53,   53,  119,  105,   34,  130,    1,    5,
 /*  1660 */    22,   59,   53,  104,  149,   68,   75,   26,   41,  130,
 /*  1670 */   150,  104,   24,   71,  120,   20,   68,   19,   22,  114,
 /*  1680 */    67,   22,   22,   22,   82,   23,   67,   22,   67,   87,
 /*  1690 */    37,   28,   90,   23,  138,   22,  153,   23,   96,   97,
 /*  1700 */    23,   26,   23,   22,   24,  103,   23,  105,  106,  107,
 /*  1710 */     1,    2,  110,   22,    5,  105,   24,   23,  130,   10,
 /*  1720 */    11,   12,   13,   14,   23,   22,   17,   34,  132,   34,
 /*  1730 */    26,   19,   20,   34,   22,   85,   23,   26,   24,   30,
 /*  1740 */    44,   32,   75,  141,  142,  143,  144,  145,   36,   40,
 /*  1750 */    26,   83,   34,   23,   23,   23,   23,   23,   23,   11,
 /*  1760 */    22,   19,   20,   26,   22,   22,   22,   26,   23,   23,
 /*  1770 */   124,   59,   22,   22,  130,  130,   23,  130,   36,   70,
 /*  1780 */    15,  130,    1,   71,  277,  277,  277,   78,  277,  277,
 /*  1790 */    81,  277,  277,  277,  277,  277,  277,   88,  277,  277,
 /*  1800 */   277,   59,   90,  277,  277,  277,  277,  277,   96,   97,
 /*  1810 */   277,  277,  277,   71,  277,  103,  277,  105,  106,  107,
 /*  1820 */   277,  277,  110,  277,  277,  277,  277,  277,  277,  277,
 /*  1830 */   277,  122,   90,  277,  277,  277,  127,  128,   96,   97,
 /*  1840 */   277,  277,  277,  277,  277,  103,  277,  105,  106,  107,
 /*  1850 */   277,  277,  110,  141,  142,  143,  144,  145,  277,  150,
................................................................................
 /*  1960 */   277,  277,  277,  277,  277,  277,  277,  277,  277,  277,
 /*  1970 */   277,  277,  277,  277,  277,  277,  277,  277,  277,  277,
 /*  1980 */   122,  277,  277,  277,  277,  127,  128,  277,  277,  277,
 /*  1990 */   277,  277,  277,  277,  277,  277,  277,  277,  277,  277,
 /*  2000 */   277,  277,  277,  277,  277,  277,  277,  277,  150,  277,
 /*  2010 */   277,  277,  277,  277,  277,  277,  277,  277,  277,
};
#define YY_SHIFT_COUNT    (524)
#define YY_SHIFT_MIN      (0)
#define YY_SHIFT_MAX      (1858)
static const unsigned short int yy_shift_ofst[] = {
 /*     0 */  1709, 1520, 1858, 1324, 1324,  277, 1374, 1469, 1602, 1712,
 /*    10 */  1712, 1712,  273,    0,    0,  113, 1016, 1712, 1712, 1712,
 /*    20 */  1712, 1712, 1712, 1712, 1712, 1712, 1712,   11,   11,  236,
 /*    30 */   184,  277,  277,  277,  277,  277,  277,   93,  177,  270,
................................................................................
 /*   210 */   531,  531,  531,  531,  531,  531,  531,  531,  531,  531,
 /*   220 */   531,    2,    2,    2,  531,  531,  531,  531,  782,  531,
 /*   230 */   531,  531,  744,  531,  531,  783,  531,  531,  531,  531,
 /*   240 */   531,  531,  531,  531,  419,  682,  327,  370,  370,  370,
 /*   250 */   370, 1029,  327,  327, 1024,  897,  856,  947, 1109,  706,
 /*   260 */   706, 1143, 1109, 1109, 1143,  842,  945, 1118, 1136, 1136,
 /*   270 */  1136,  706,  676,  400, 1047,  694, 1339, 1270, 1270, 1366,
 /*   280 */  1366, 1270, 1305, 1389, 1275, 1279, 1375, 1275, 1279, 1286,
 /*   290 */  1414, 1414, 1414, 1414, 1270, 1418, 1286, 1286, 1305, 1389,
 /*   300 */  1375, 1375, 1286, 1270, 1418, 1302, 1393, 1270, 1418, 1438,
 /*   310 */  1270, 1418, 1270, 1418, 1438, 1371, 1371, 1371, 1422, 1438,
 /*   320 */  1371, 1372, 1371, 1422, 1371, 1371, 1438, 1398, 1398, 1438,
 /*   330 */  1369, 1402, 1369, 1402, 1369, 1402, 1369, 1402, 1270, 1279,
 /*   340 */  1429, 1492, 1275, 1279, 1507, 1270, 1390, 1275, 1406, 1419,
 /*   350 */  1286, 1533, 1537, 1555, 1555, 1564, 1564, 1564, 2009, 2009,
 /*   360 */  2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009, 2009,
 /*   370 */  2009, 2009, 2009, 2009,  570,  345,  686,  748,   50,  740,
 /*   380 */  1064, 1107,  469,  537, 1042, 1146, 1162, 1154, 1201, 1202,
 /*   390 */  1203, 1208, 1209, 1127, 1069, 1196, 1157, 1147, 1226, 1228,
 /*   400 */  1245,  775,  868, 1246, 1247, 1191, 1151, 1587, 1601, 1595,
 /*   410 */  1467, 1604, 1531, 1607, 1603, 1605, 1497, 1488, 1510, 1606,
 /*   420 */  1505, 1617, 1506, 1624, 1640, 1512, 1504, 1526, 1585, 1612,
 /*   430 */  1511, 1598, 1599, 1600, 1609, 1535, 1550, 1622, 1527, 1657,
 /*   440 */  1654, 1638, 1559, 1515, 1597, 1641, 1608, 1591, 1627, 1539,
 /*   450 */  1567, 1648, 1655, 1658, 1554, 1565, 1656, 1613, 1659, 1660,
 /*   460 */  1662, 1661, 1619, 1663, 1665, 1621, 1653, 1670, 1556, 1673,
 /*   470 */  1543, 1674, 1677, 1675, 1679, 1681, 1680, 1683, 1691, 1692,
 /*   480 */  1588, 1694, 1701, 1610, 1693, 1703, 1596, 1704, 1695, 1704,
 /*   490 */  1699, 1650, 1667, 1668, 1696, 1713, 1714, 1711, 1724, 1718,
 /*   500 */  1730, 1704, 1731, 1732, 1733, 1734, 1737, 1735, 1738, 1748,
 /*   510 */  1743, 1744, 1745, 1746, 1750, 1751, 1741, 1646, 1644, 1645,
 /*   520 */  1647, 1651, 1753, 1765, 1781,
};
#define YY_REDUCE_COUNT (373)
#define YY_REDUCE_MIN   (-237)
#define YY_REDUCE_MAX   (1434)
static const short yy_reduce_ofst[] = {
 /*     0 */  -147,  171,  263,  -96,  358, -144, -149, -102,  124, -156,
 /*    10 */   -98,  305,  401,  -57,  209, -237,  245,  -94,  -79,  189,
 /*    20 */   375,  490,  493,  378,  303,  539,  542,  501,  503,  554,
 /*    30 */   415,  526,  546,  557,  587,  593,  595, -234, -234, -234,
 /*    40 */  -234, -234, -234, -234, -234, -234, -234, -234, -234, -234,
 /*    50 */  -234, -234, -234, -234, -234, -234, -234, -234, -234, -234,
................................................................................
 /*   210 */  1112, 1115, 1116, 1117, 1119, 1120, 1121, 1122, 1123, 1124,
 /*   220 */  1125, 1012, 1096, 1097, 1128, 1129, 1130, 1131, 1070, 1135,
 /*   230 */  1137, 1152, 1077, 1153, 1155, 1114, 1156,  304, 1158, 1172,
 /*   240 */  1173, 1174, 1175, 1176, 1089, 1091, 1133, 1098, 1126, 1139,
 /*   250 */  1140, 1070, 1133, 1133, 1170, 1163, 1186, 1103, 1168, 1138,
 /*   260 */  1141, 1110, 1169, 1171, 1132, 1177, 1189, 1194, 1181, 1200,
 /*   270 */  1204, 1166, 1145, 1178, 1187, 1232, 1142, 1231, 1233, 1149,
 /*   280 */  1150, 1238, 1179, 1182, 1199, 1207, 1218, 1211, 1210, 1212,
 /*   290 */  1234, 1235, 1236, 1237, 1265, 1268, 1229, 1230, 1213, 1215,
 /*   300 */  1243, 1252, 1241, 1276, 1278, 1205, 1220, 1287, 1290, 1273,
 /*   310 */  1293, 1304, 1306, 1309, 1285, 1296, 1297, 1299, 1298, 1301,
 /*   320 */  1307, 1308, 1311, 1300, 1312, 1313, 1314, 1249, 1255, 1315,
 /*   330 */  1280, 1284, 1295, 1316, 1310, 1317, 1318, 1320, 1337, 1319,
 /*   340 */  1253, 1258, 1322, 1325, 1321, 1378, 1326, 1328, 1338, 1341,
 /*   350 */  1344, 1391, 1395, 1407, 1409, 1415, 1416, 1420, 1323, 1333,
 /*   360 */  1329, 1405, 1401, 1403, 1412, 1421, 1408, 1417, 1425, 1423,
 /*   370 */  1424, 1427, 1434, 1426,
};
static const YYACTIONTYPE yy_default[] = {

 /*     0 */  1496, 1496, 1496, 1344, 1127, 1233, 1127, 1127, 1127, 1344,
 /*    10 */  1344, 1344, 1127, 1263, 1263, 1395, 1158, 1127, 1127, 1127,
 /*    20 */  1127, 1127, 1127, 1127, 1343, 1127, 1127, 1127, 1127, 1127,
 /*    30 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1269, 1127,
 /*    40 */  1127, 1127, 1127, 1127, 1345, 1346, 1127, 1127, 1127, 1394,
 /*    50 */  1396, 1279, 1278, 1277, 1276, 1377, 1250, 1274, 1267, 1271,
 /*    60 */  1339, 1340, 1338, 1342, 1346, 1345, 1127, 1270, 1310, 1324,
 /*    70 */  1309, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*    80 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*    90 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   100 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   110 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1318, 1323, 1329,
 /*   120 */  1322, 1319, 1312, 1311, 1313, 1314, 1127, 1148, 1197, 1127,
 /*   130 */  1127, 1127, 1127, 1413, 1412, 1127, 1127, 1158, 1315, 1316,
 /*   140 */  1326, 1325, 1402, 1452, 1451, 1127, 1127, 1127, 1127, 1127,
 /*   150 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   160 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   170 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1158, 1154, 1304,
 /*   180 */  1303, 1422, 1154, 1257, 1127, 1408, 1233, 1224, 1127, 1127,
 /*   190 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   200 */  1127, 1399, 1397, 1127, 1359, 1127, 1127, 1127, 1127, 1127,
 /*   210 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   220 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   230 */  1127, 1127, 1229, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   240 */  1127, 1127, 1127, 1446, 1127, 1372, 1211, 1229, 1229, 1229,
 /*   250 */  1229, 1231, 1212, 1210, 1223, 1158, 1134, 1488, 1273, 1252,
 /*   260 */  1252, 1485, 1273, 1273, 1485, 1172, 1466, 1169, 1263, 1263,
 /*   270 */  1263, 1252, 1341, 1230, 1223, 1127, 1488, 1238, 1238, 1487,
 /*   280 */  1487, 1238, 1282, 1288, 1268, 1257, 1200, 1268, 1257, 1273,
 /*   290 */  1206, 1206, 1206, 1206, 1238, 1145, 1273, 1273, 1282, 1288,
 /*   300 */  1200, 1200, 1273, 1238, 1145, 1376, 1482, 1238, 1145, 1352,
 /*   310 */  1238, 1145, 1238, 1145, 1352, 1198, 1198, 1198, 1187, 1352,
 /*   320 */  1198, 1172, 1198, 1187, 1198, 1198, 1352, 1356, 1356, 1352,
 /*   330 */  1256, 1251, 1256, 1251, 1256, 1251, 1256, 1251, 1238, 1257,
 /*   340 */  1421, 1127, 1268, 1257, 1347, 1238, 1127, 1268, 1266, 1264,
 /*   350 */  1273, 1151, 1190, 1449, 1449, 1445, 1445, 1445, 1493, 1493,
 /*   360 */  1408, 1461, 1158, 1158, 1158, 1158, 1461, 1174, 1174, 1158,
 /*   370 */  1158, 1158, 1158, 1461, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   380 */  1456, 1127, 1361, 1242, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   390 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   400 */  1127, 1127, 1127, 1127, 1127, 1127, 1293, 1127, 1130, 1405,
 /*   410 */  1127, 1127, 1403, 1127, 1127, 1127, 1127, 1127, 1127, 1243,
 /*   420 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   430 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1484, 1127,
 /*   440 */  1127, 1127, 1127, 1127, 1127, 1375, 1374, 1127, 1127, 1240,
 /*   450 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   460 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   470 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   480 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1265, 1127, 1420,
 /*   490 */  1127, 1127, 1127, 1127, 1127, 1127, 1127, 1434, 1258, 1127,
 /*   500 */  1127, 1475, 1127, 1127, 1127, 1127, 1127, 1127, 1127, 1127,
 /*   510 */  1127, 1127, 1127, 1127, 1127, 1127, 1470, 1214, 1295, 1127,
 /*   520 */  1294, 1298, 1127, 1139, 1127,
};
/********** End of lemon-generated parsing tables *****************************/

/* The next table maps tokens (terminal symbols) into fallback tokens.  
** If a construct like the following:
** 
**      %fallback ID X Y Z.
................................................................................
 /* 135 */ "groupby_opt ::= GROUP BY nexprlist",
 /* 136 */ "having_opt ::=",
 /* 137 */ "having_opt ::= HAVING expr",
 /* 138 */ "limit_opt ::=",
 /* 139 */ "limit_opt ::= LIMIT expr",
 /* 140 */ "limit_opt ::= LIMIT expr OFFSET expr",
 /* 141 */ "limit_opt ::= LIMIT expr COMMA expr",
 /* 142 */ "cmd ::= with DELETE FROM xfullname indexed_opt where_opt orderby_opt limit_opt",
 /* 143 */ "where_opt ::=",
 /* 144 */ "where_opt ::= WHERE expr",
 /* 145 */ "cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt orderby_opt limit_opt",
 /* 146 */ "setlist ::= setlist COMMA nm EQ expr",
 /* 147 */ "setlist ::= setlist COMMA LP idlist RP EQ expr",
 /* 148 */ "setlist ::= nm EQ expr",
 /* 149 */ "setlist ::= LP idlist RP EQ expr",
 /* 150 */ "cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert",
 /* 151 */ "cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES",
 /* 152 */ "upsert ::=",
................................................................................
  {  214,   -3 }, /* (135) groupby_opt ::= GROUP BY nexprlist */
  {  215,    0 }, /* (136) having_opt ::= */
  {  215,   -2 }, /* (137) having_opt ::= HAVING expr */
  {  217,    0 }, /* (138) limit_opt ::= */
  {  217,   -2 }, /* (139) limit_opt ::= LIMIT expr */
  {  217,   -4 }, /* (140) limit_opt ::= LIMIT expr OFFSET expr */
  {  217,   -4 }, /* (141) limit_opt ::= LIMIT expr COMMA expr */
  {  160,   -8 }, /* (142) cmd ::= with DELETE FROM xfullname indexed_opt where_opt orderby_opt limit_opt */
  {  213,    0 }, /* (143) where_opt ::= */
  {  213,   -2 }, /* (144) where_opt ::= WHERE expr */
  {  160,  -10 }, /* (145) cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt orderby_opt limit_opt */
  {  233,   -5 }, /* (146) setlist ::= setlist COMMA nm EQ expr */
  {  233,   -7 }, /* (147) setlist ::= setlist COMMA LP idlist RP EQ expr */
  {  233,   -3 }, /* (148) setlist ::= nm EQ expr */
  {  233,   -5 }, /* (149) setlist ::= LP idlist RP EQ expr */
  {  160,   -7 }, /* (150) cmd ::= with insert_cmd INTO xfullname idlist_opt select upsert */
  {  160,   -7 }, /* (151) cmd ::= with insert_cmd INTO xfullname idlist_opt DEFAULT VALUES */
  {  236,    0 }, /* (152) upsert ::= */
................................................................................
        break;
      case 140: /* limit_opt ::= LIMIT expr OFFSET expr */
{yymsp[-3].minor.yy18 = sqlite3PExpr(pParse,TK_LIMIT,yymsp[-2].minor.yy18,yymsp[0].minor.yy18);}
        break;
      case 141: /* limit_opt ::= LIMIT expr COMMA expr */
{yymsp[-3].minor.yy18 = sqlite3PExpr(pParse,TK_LIMIT,yymsp[0].minor.yy18,yymsp[-2].minor.yy18);}
        break;
      case 142: /* cmd ::= with DELETE FROM xfullname indexed_opt where_opt orderby_opt limit_opt */
{
  sqlite3SrcListIndexedBy(pParse, yymsp[-4].minor.yy135, &yymsp[-3].minor.yy0);
  sqlite3DeleteFrom(pParse,yymsp[-4].minor.yy135,yymsp[-2].minor.yy18,yymsp[-1].minor.yy420,yymsp[0].minor.yy18);
}
        break;
      case 145: /* cmd ::= with UPDATE orconf xfullname indexed_opt SET setlist where_opt orderby_opt limit_opt */
{
  sqlite3SrcListIndexedBy(pParse, yymsp[-6].minor.yy135, &yymsp[-5].minor.yy0);
  sqlite3ExprListCheckLength(pParse,yymsp[-3].minor.yy420,"set list"); 
  sqlite3Update(pParse,yymsp[-6].minor.yy135,yymsp[-3].minor.yy420,yymsp[-2].minor.yy18,yymsp[-7].minor.yy70,yymsp[-1].minor.yy420,yymsp[0].minor.yy18,0);
}
        break;
      case 146: /* setlist ::= setlist COMMA nm EQ expr */
{
  yymsp[-4].minor.yy420 = sqlite3ExprListAppend(pParse, yymsp[-4].minor.yy420, yymsp[0].minor.yy18);
  sqlite3ExprListSetName(pParse, yymsp[-4].minor.yy420, &yymsp[-2].minor.yy0, 1);
}
................................................................................
    }
  }
  while( IdChar(z[i]) ){ i++; }
  *tokenType = TK_ID;
  return i;
}

#ifdef SQLITE_ENABLE_NORMALIZE
/*
** Return the length (in bytes) of the token that begins at z[0].
** Store the token type in *tokenType before returning.  If flags has
** SQLITE_TOKEN_NORMALIZE flag enabled, use the identifier token type
** for keywords.  Add SQLITE_TOKEN_QUOTED to flags if the token was
** actually a quoted identifier.  Add SQLITE_TOKEN_KEYWORD to flags
** if the token was recognized as a keyword; this is useful when the
** SQLITE_TOKEN_NORMALIZE flag is used, because it enables the caller
** to differentiate between a keyword being treated as an identifier
** (for normalization purposes) and an actual identifier.
*/
SQLITE_PRIVATE int sqlite3GetTokenNormalized(
  const unsigned char *z,
  int *tokenType,
  int *flags
){
  int n;
  unsigned char iClass = aiClass[*z];
  if( iClass==CC_KYWD ){
    int i;
    for(i=1; aiClass[z[i]]<=CC_KYWD; i++){}
    if( IdChar(z[i]) ){
      /* This token started out using characters that can appear in keywords,
      ** but z[i] is a character not allowed within keywords, so this must
      ** be an identifier instead */
      i++;
      while( IdChar(z[i]) ){ i++; }
      *tokenType = TK_ID;
      return i;
    }
    *tokenType = TK_ID;
    n = keywordCode((char*)z, i, tokenType);
    /* If the token is no longer considered to be an identifier, then it is a
    ** keyword of some kind.  Make the token back into an identifier and then
    ** set the SQLITE_TOKEN_KEYWORD flag.  Several non-identifier tokens are
    ** used verbatim, including IN, IS, NOT, and NULL. */
    switch( *tokenType ){
      case TK_ID: {
        /* do nothing, handled by caller */
        break;
      }
      case TK_IN:
      case TK_IS:
      case TK_NOT:
      case TK_NULL: {
        *flags |= SQLITE_TOKEN_KEYWORD;
        break;
      }
      default: {
        *tokenType = TK_ID;
        *flags |= SQLITE_TOKEN_KEYWORD;
        break;
      }
    }
  }else{
    n = sqlite3GetToken(z, tokenType);
    /* If the token is considered to be an identifier and the character class
    ** of the first character is a quote, set the SQLITE_TOKEN_QUOTED flag. */
    if( *tokenType==TK_ID && (iClass==CC_QUOTE || iClass==CC_QUOTE2) ){
      *flags |= SQLITE_TOKEN_QUOTED;
    }
  }
  return n;
}
#endif /* SQLITE_ENABLE_NORMALIZE */

/*
** Run the parser on the given SQL string.  The parser structure is
** passed in.  An SQLITE_ status code is returned.  If an error occurs
** then an and attempt is made to write an error message into 
** memory obtained from sqlite3_malloc() and to make *pzErrMsg point to that
** error message.
*/
................................................................................
        { SQLITE_DBCONFIG_ENABLE_TRIGGER,        SQLITE_EnableTrigger  },
        { SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, SQLITE_Fts3Tokenizer  },
        { SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, SQLITE_LoadExtension  },
        { SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE,      SQLITE_NoCkptOnClose  },
        { SQLITE_DBCONFIG_ENABLE_QPSG,           SQLITE_EnableQPSG     },
        { SQLITE_DBCONFIG_TRIGGER_EQP,           SQLITE_TriggerEQP     },
        { SQLITE_DBCONFIG_RESET_DATABASE,        SQLITE_ResetDatabase  },
        { SQLITE_DBCONFIG_DEFENSIVE,             SQLITE_Defensive      },
      };
      unsigned int i;
      rc = SQLITE_ERROR; /* IMP: R-42790-23372 */
      for(i=0; i<ArraySize(aFlagOp); i++){
        if( aFlagOp[i].op==op ){
          int onoff = va_arg(ap, int);
          int *pRes = va_arg(ap, int*);
................................................................................
    }
  }
  sqlite3_mutex_enter(db->mutex);
  db->errMask = 0xff;
  db->nDb = 2;
  db->magic = SQLITE_MAGIC_BUSY;
  db->aDb = db->aDbStatic;
  db->lookaside.bDisable = 1;

  assert( sizeof(db->aLimit)==sizeof(aHardLimit) );
  memcpy(db->aLimit, aHardLimit, sizeof(db->aLimit));
  db->aLimit[SQLITE_LIMIT_WORKER_THREADS] = SQLITE_DEFAULT_WORKER_THREADS;
  db->autoCommit = 1;
  db->nextAutovac = -1;
  db->szMmap = sqlite3GlobalConfig.szMmap;
................................................................................
                 | SQLITE_CellSizeCk
#endif
#if defined(SQLITE_ENABLE_FTS3_TOKENIZER)
                 | SQLITE_Fts3Tokenizer
#endif
#if defined(SQLITE_ENABLE_QPSG)
                 | SQLITE_EnableQPSG
#endif
#if defined(SQLITE_DEFAULT_DEFENSIVE)
                 | SQLITE_Defensive
#endif
      ;
  sqlite3HashInit(&db->aCollSeq);
#ifndef SQLITE_OMIT_VIRTUALTABLE
  sqlite3HashInit(&db->aModule);
#endif

................................................................................
  sqlite3_int64 *piFirst,         /* OUT: Selected child node */
  sqlite3_int64 *piLast           /* OUT: Selected child node */
){
  int rc = SQLITE_OK;             /* Return code */
  const char *zCsr = zNode;       /* Cursor to iterate through node */
  const char *zEnd = &zCsr[nNode];/* End of interior node buffer */
  char *zBuffer = 0;              /* Buffer to load terms into */
  i64 nAlloc = 0;                 /* Size of allocated buffer */
  int isFirstTerm = 1;            /* True when processing first term on page */
  sqlite3_int64 iChild;           /* Block id of child node to descend to */

  /* Skip over the 'height' varint that occurs at the start of every 
  ** interior node. Then load the blockid of the left-child of the b-tree
  ** node into variable iChild.  
  **
................................................................................
    if( !isFirstTerm ){
      zCsr += fts3GetVarint32(zCsr, &nPrefix);
    }
    isFirstTerm = 0;
    zCsr += fts3GetVarint32(zCsr, &nSuffix);
    
    assert( nPrefix>=0 && nSuffix>=0 );
    if( nPrefix>zCsr-zNode || nSuffix>zEnd-zCsr ){
      rc = FTS_CORRUPT_VTAB;
      goto finish_scan;
    }
    if( (i64)nPrefix+nSuffix>nAlloc ){
      char *zNew;
      nAlloc = ((i64)nPrefix+nSuffix) * 2;
      zNew = (char *)sqlite3_realloc64(zBuffer, nAlloc);
      if( !zNew ){
        rc = SQLITE_NOMEM;
        goto finish_scan;
      }
      zBuffer = zNew;
    }
    assert( zBuffer );
................................................................................
  UNUSED_PARAMETER(iSavepoint);
  assert( p->inTransaction );
  assert( p->mxSavepoint >= iSavepoint );
  TESTONLY( p->mxSavepoint = iSavepoint );
  sqlite3Fts3PendingTermsClear(p);
  return SQLITE_OK;
}

/*
** Return true if zName is the extension on one of the shadow tables used
** by this module.
*/
static int fts3ShadowName(const char *zName){
  static const char *azName[] = {
    "content", "docsize", "segdir", "segments", "stat", 
  };
  unsigned int i;
  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
    if( sqlite3_stricmp(zName, azName[i])==0 ) return 1;
  }
  return 0;
}

static const sqlite3_module fts3Module = {
  /* iVersion      */ 3,
  /* xCreate       */ fts3CreateMethod,
  /* xConnect      */ fts3ConnectMethod,
  /* xBestIndex    */ fts3BestIndexMethod,
  /* xDisconnect   */ fts3DisconnectMethod,
  /* xDestroy      */ fts3DestroyMethod,
  /* xOpen         */ fts3OpenMethod,
  /* xClose        */ fts3CloseMethod,
................................................................................
  /* xCommit       */ fts3CommitMethod,
  /* xRollback     */ fts3RollbackMethod,
  /* xFindFunction */ fts3FindFunctionMethod,
  /* xRename */       fts3RenameMethod,
  /* xSavepoint    */ fts3SavepointMethod,
  /* xRelease      */ fts3ReleaseMethod,
  /* xRollbackTo   */ fts3RollbackToMethod,
  /* xShadowName   */ fts3ShadowName,
};

/*
** This function is registered as the module destructor (called when an
** FTS3 enabled database connection is closed). It frees the memory
** allocated for the tokenizer hash table.
*/
................................................................................
     0,                           /* xSync         */
     0,                           /* xCommit       */
     0,                           /* xRollback     */
     0,                           /* xFindFunction */
     0,                           /* xRename       */
     0,                           /* xSavepoint    */
     0,                           /* xRelease      */
     0,                           /* xRollbackTo   */
     0                            /* xShadowName   */
  };
  int rc;                         /* Return code */

  rc = sqlite3_create_module(db, "fts4aux", &fts3aux_module, 0);
  return rc;
}

................................................................................
     0,                           /* xSync         */
     0,                           /* xCommit       */
     0,                           /* xRollback     */
     0,                           /* xFindFunction */
     0,                           /* xRename       */
     0,                           /* xSavepoint    */
     0,                           /* xRelease      */
     0,                           /* xRollbackTo   */
     0                            /* xShadowName   */
  };
  int rc;                         /* Return code */

  rc = sqlite3_create_module(db, "fts3tokenize", &fts3tok_module, (void*)pHash);
  return rc;
}

................................................................................
  rc = fts3SegReaderRequire(pReader, pNext, FTS3_VARINT_MAX*2);
  if( rc!=SQLITE_OK ) return rc;
  
  /* Because of the FTS3_NODE_PADDING bytes of padding, the following is 
  ** safe (no risk of overread) even if the node data is corrupted. */
  pNext += fts3GetVarint32(pNext, &nPrefix);
  pNext += fts3GetVarint32(pNext, &nSuffix);
  if( nSuffix<=0 
   || (&pReader->aNode[pReader->nNode] - pNext)<nSuffix
   || nPrefix>pReader->nTermAlloc
  ){
    return FTS_CORRUPT_VTAB;
  }

  /* Both nPrefix and nSuffix were read by fts3GetVarint32() and so are
  ** between 0 and 0x7FFFFFFF. But the sum of the two may cause integer
  ** overflow - hence the (i64) casts.  */
  if( (i64)nPrefix+nSuffix>(i64)pReader->nTermAlloc ){
    i64 nNew = ((i64)nPrefix+nSuffix)*2;
    char *zNew = sqlite3_realloc64(pReader->zTerm, nNew);
    if( !zNew ){
      return SQLITE_NOMEM;
    }
    pReader->zTerm = zNew;
    pReader->nTermAlloc = nNew;
  }

................................................................................
  pReader->aDoclist = pNext;
  pReader->pOffsetList = 0;

  /* Check that the doclist does not appear to extend past the end of the
  ** b-tree node. And that the final byte of the doclist is 0x00. If either 
  ** of these statements is untrue, then the data structure is corrupt.
  */
  if( (&pReader->aNode[pReader->nNode] - pReader->aDoclist)<pReader->nDoclist
   || (pReader->nPopulate==0 && pReader->aDoclist[pReader->nDoclist-1])
  ){
    return FTS_CORRUPT_VTAB;
  }
  return SQLITE_OK;
}

................................................................................
    p->aNode = 0;
  }else{
    if( bFirst==0 ){
      p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nPrefix);
    }
    p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &nSuffix);

    if( nPrefix>p->iOff || nSuffix>p->nNode-p->iOff ){
      return SQLITE_CORRUPT_VTAB;
    }
    blobGrowBuffer(&p->term, nPrefix+nSuffix, &rc);
    if( rc==SQLITE_OK ){
      memcpy(&p->term.a[nPrefix], &p->aNode[p->iOff], nSuffix);
      p->term.n = nPrefix+nSuffix;
      p->iOff += nSuffix;
      if( p->iChild==0 ){
        p->iOff += fts3GetVarint32(&p->aNode[p->iOff], &p->nDoclist);
        if( (p->nNode-p->iOff)<p->nDoclist ){
          return SQLITE_CORRUPT_VTAB;
        }
        p->aDoclist = &p->aNode[p->iOff];
        p->iOff += p->nDoclist;
      }
    }
  }

  assert( p->iOff<=p->nNode );

  return rc;
}

/*
** Release all dynamic resources held by node-reader object *p.
*/
static void nodeReaderRelease(NodeReader *p){
................................................................................
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0,                         /* xRollbackTo */
  0                          /* xShadowName */
};

/* The methods of the json_tree virtual table. */
static sqlite3_module jsonTreeModule = {
  0,                         /* iVersion */
  0,                         /* xCreate */
  jsonEachConnect,           /* xConnect */
................................................................................
  0,                         /* xSync */
  0,                         /* xCommit */
  0,                         /* xRollback */
  0,                         /* xFindMethod */
  0,                         /* xRename */
  0,                         /* xSavepoint */
  0,                         /* xRelease */
  0,                         /* xRollbackTo */
  0                          /* xShadowName */
};
#endif /* SQLITE_OMIT_VIRTUALTABLE */

/****************************************************************************
** The following routines are the only publically visible identifiers in this
** file.  Call the following routines in order to register the various SQL
** functions and the virtual table implemented by this file.
................................................................................
    }
    sqlite3_free(zSql);
  }

  return rc;
}


/*
** Return true if zName is the extension on one of the shadow tables used
** by this module.
*/
static int rtreeShadowName(const char *zName){
  static const char *azName[] = {
    "node", "parent", "rowid"
  };
  unsigned int i;
  for(i=0; i<sizeof(azName)/sizeof(azName[0]); i++){
    if( sqlite3_stricmp(zName, azName[i])==0 ) return 1;
  }
  return 0;
}

static sqlite3_module rtreeModule = {
  3,                          /* iVersion */
  rtreeCreate,                /* xCreate - create a table */
  rtreeConnect,               /* xConnect - connect to an existing table */
  rtreeBestIndex,             /* xBestIndex - Determine search strategy */
  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
  rtreeDestroy,               /* xDestroy - Drop a table */
  rtreeOpen,                  /* xOpen - open a cursor */
  rtreeClose,                 /* xClose - close a cursor */
................................................................................
  rtreeEndTransaction,        /* xCommit - commit transaction */
  rtreeEndTransaction,        /* xRollback - rollback transaction */
  0,                          /* xFindFunction - function overloading */
  rtreeRename,                /* xRename - rename the table */
  rtreeSavepoint,             /* xSavepoint */
  0,                          /* xRelease */
  0,                          /* xRollbackTo */
  rtreeShadowName             /* xShadowName */
};

static int rtreeSqlInit(
  Rtree *pRtree, 
  sqlite3 *db, 
  const char *zDb, 
  const char *zPrefix, 
................................................................................
** each segment is "outside" and the area to the left is "inside".
**
** The on-disk representation consists of a 4-byte header followed by
** the values.  The 4-byte header is:
**
**      encoding    (1 byte)   0=big-endian, 1=little-endian
**      nvertex     (3 bytes)  Number of vertexes as a big-endian integer
**
** Enough space is allocated for 4 coordinates, to work around over-zealous
** warnings coming from some compiler (notably, clang). In reality, the size
** of each GeoPoly memory allocate is adjusted as necessary so that the
** GeoPoly.a[] array at the end is the appropriate size.
*/
typedef struct GeoPoly GeoPoly;
struct GeoPoly {
  int nVertex;          /* Number of vertexes */
  unsigned char hdr[4]; /* Header for on-disk representation */
  GeoCoord a[8];        /* 2*nVertex values. X (longitude) first, then Y */
};

/* The size of a memory allocation needed for a GeoPoly object sufficient
** to hold N coordinate pairs.
*/
#define GEOPOLY_SZ(N)  (sizeof(GeoPoly) + sizeof(GeoCoord)*2*((N)-4))

/*
** State of a parse of a GeoJSON input.
*/
typedef struct GeoParse GeoParse;
struct GeoParse {
  const unsigned char *z;   /* Unparsed input */
................................................................................
  t = a[1];
  a[1] = a[2];
  a[2] = t;
}

/* Skip whitespace.  Return the next non-whitespace character. */
static char geopolySkipSpace(GeoParse *p){
  while( safe_isspace(p->z[0]) ) p->z++;
  return p->z[0];
}

/* Parse out a number.  Write the value into *pVal if pVal!=0.
** return non-zero on success and zero if the next token is not a number.
*/
static int geopolyParseNumber(GeoParse *p, GeoCoord *pVal){
................................................................................
  if( c=='-' ){
    j = 1;
    c = z[j];
  }
  if( c=='0' && z[j+1]>='0' && z[j+1]<='9' ) return 0;
  for(;; j++){
    c = z[j];
    if( safe_isdigit(c) ) continue;
    if( c=='.' ){
      if( z[j-1]=='-' ) return 0;
      if( seenDP ) return 0;
      seenDP = 1;
      continue;
    }
    if( c=='e' || c=='E' ){
................................................................................
      }
      if( c<'0' || c>'9' ) return 0;
      continue;
    }
    break;
  }
  if( z[j-1]<'0' ) return 0;
  if( pVal ){
#ifdef SQLITE_AMALGAMATION
     /* The sqlite3AtoF() routine is much much faster than atof(), if it
     ** is available */
     double r;
     (void)sqlite3AtoF((const char*)p->z, &r, j, SQLITE_UTF8);
     *pVal = r;
#else
     *pVal = (GeoCoord)atof((const char*)p->z);
#endif
  }
  p->z += j;
  return 1;
}

/*
** If the input is a well-formed JSON array of coordinates with at least
** four coordinates and where each coordinate is itself a two-value array,
................................................................................
    }
    if( geopolySkipSpace(&s)==']'
     && s.nVertex>=4
     && s.a[0]==s.a[s.nVertex*2-2]
     && s.a[1]==s.a[s.nVertex*2-1]
     && (s.z++, geopolySkipSpace(&s)==0)
    ){

      GeoPoly *pOut;
      int x = 1;
      s.nVertex--;  /* Remove the redundant vertex at the end */

      pOut = sqlite3_malloc64( GEOPOLY_SZ(s.nVertex) );
      x = 1;
      if( pOut==0 ) goto parse_json_err;
      pOut->nVertex = s.nVertex;
      memcpy(pOut->a, s.a, s.nVertex*2*sizeof(GeoCoord));
      pOut->hdr[0] = *(unsigned char*)&x;
      pOut->hdr[1] = (s.nVertex>>16)&0xff;
      pOut->hdr[2] = (s.nVertex>>8)&0xff;
................................................................................
      p->a[ii*2+1] = y1;
    }
    sqlite3_result_blob(context, p->hdr, 
       4+8*p->nVertex, SQLITE_TRANSIENT);
    sqlite3_free(p);
  }
}

/*
** Compute the area enclosed by the polygon.
**
** This routine can also be used to detect polygons that rotate in
** the wrong direction.  Polygons are suppose to be counter-clockwise (CCW).
** This routine returns a negative value for clockwise (CW) polygons.
*/
static double geopolyArea(GeoPoly *p){
  double rArea = 0.0;
  int ii;
  for(ii=0; ii<p->nVertex-1; ii++){
    rArea += (p->a[ii*2] - p->a[ii*2+2])           /* (x0 - x1) */
              * (p->a[ii*2+1] + p->a[ii*2+3])      /* (y0 + y1) */
              * 0.5;
  }
  rArea += (p->a[ii*2] - p->a[0])                  /* (xN - x0) */
           * (p->a[ii*2+1] + p->a[1])              /* (yN + y0) */
           * 0.5;
  return rArea;
}

/*
** Implementation of the geopoly_area(X) function.
**
** If the input is a well-formed Geopoly BLOB then return the area
** enclosed by the polygon.  If the polygon circulates clockwise instead
** of counterclockwise (as it should) then return the negative of the
................................................................................
static void geopolyAreaFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
  if( p ){
    sqlite3_result_double(context, geopolyArea(p));
    sqlite3_free(p);
  }            
}

/*
** Implementation of the geopoly_ccw(X) function.
**
** If the rotation of polygon X is clockwise (incorrect) instead of
** counter-clockwise (the correct winding order according to RFC7946)
** then reverse the order of the vertexes in polygon X.  
**
** In other words, this routine returns a CCW polygon regardless of the
** winding order of its input.
**
** Use this routine to sanitize historical inputs that that sometimes
** contain polygons that wind in the wrong direction.
*/
static void geopolyCcwFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  GeoPoly *p = geopolyFuncParam(context, argv[0], 0);
  if( p ){
    if( geopolyArea(p)<0.0 ){
      int ii, jj;




      for(ii=2, jj=p->nVertex*2 - 4; ii<jj; ii+=2, jj-=2){
        GeoCoord t = p->a[ii];
        p->a[ii] = p->a[jj];
        p->a[jj] = t;
        t = p->a[ii+1];
        p->a[ii+1] = p->a[jj+1];
        p->a[jj+1] = t;
      }



    }
    sqlite3_result_blob(context, p->hdr, 
       4+8*p->nVertex, SQLITE_TRANSIENT);
    sqlite3_free(p);
  }            
}

#define GEOPOLY_PI 3.1415926535897932385

/* Fast approximation for cosine(X) for X between -0.5*pi and 2*pi
*/
static double geopolyCosine(double r){
  assert( r>=-0.5*GEOPOLY_PI && r<=2.0*GEOPOLY_PI );
  if( r>=1.5*GEOPOLY_PI ){
    r -= 2.0*GEOPOLY_PI;
  }
  if( r>=0.5*GEOPOLY_PI ){
    return -geopolyCosine(r-GEOPOLY_PI);
  }else{
    double r2 = r*r;
    double r3 = r2*r;
    double r5 = r3*r2;
    return 0.9996949*r - 0.1656700*r3 + 0.0075134*r5;
  }
}

/*
** Function:   geopoly_regular(X,Y,R,N)
**
** Construct a simple, convex, regular polygon centered at X, Y
** with circumradius R and with N sides.
*/
static void geopolyRegularFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  double x = sqlite3_value_double(argv[0]);
  double y = sqlite3_value_double(argv[1]);
  double r = sqlite3_value_double(argv[2]);
  int n = sqlite3_value_int(argv[3]);
  int i;
  GeoPoly *p;

  if( n<3 || r<=0.0 ) return;
  if( n>1000 ) n = 1000;
  p = sqlite3_malloc64( sizeof(*p) + (n-1)*2*sizeof(GeoCoord) );
  if( p==0 ){
    sqlite3_result_error_nomem(context);
    return;
  }
  i = 1;
  p->hdr[0] = *(unsigned char*)&i;
  p->hdr[1] = 0;
  p->hdr[2] = (n>>8)&0xff;
  p->hdr[3] = n&0xff;
  for(i=0; i<n; i++){
    double rAngle = 2.0*GEOPOLY_PI*i/n;
    p->a[i*2] = x - r*geopolyCosine(rAngle-0.5*GEOPOLY_PI);
    p->a[i*2+1] = y + r*geopolyCosine(rAngle);
  }
  sqlite3_result_blob(context, p->hdr, 4+8*n, SQLITE_TRANSIENT);
  sqlite3_free(p);
}

/*
** If pPoly is a polygon, compute its bounding box. Then:
**
**    (1) if aCoord!=0 store the bounding box in aCoord, returning NULL
**    (2) otherwise, compute a GeoPoly for the bounding box and return the
**        new GeoPoly
................................................................................
      r = p->a[ii*2+1];
      if( r<mnY ) mnY = (float)r;
      else if( r>mxY ) mxY = (float)r;
    }
    if( pRc ) *pRc = SQLITE_OK;
    if( aCoord==0 ){
      geopolyBboxFill:
      pOut = sqlite3_realloc(p, GEOPOLY_SZ(4));
      if( pOut==0 ){
        sqlite3_free(p);
        if( context ) sqlite3_result_error_nomem(context);
        if( pRc ) *pRc = SQLITE_NOMEM;
        return 0;
      }
      pOut->nVertex = 4;
................................................................................
    int jj;
    int nChange = 0;
    sqlite3_bind_int64(pUp, 1, cell.iRowid);
    assert( pRtree->nAux>=1 );
    if( sqlite3_value_nochange(aData[2]) ){
      sqlite3_bind_null(pUp, 2);
    }else{
      GeoPoly *p = 0;
      if( sqlite3_value_type(aData[2])==SQLITE_TEXT
       && (p = geopolyFuncParam(0, aData[2], &rc))!=0
       && rc==SQLITE_OK
      ){
        sqlite3_bind_blob(pUp, 2, p->hdr, 4+8*p->nVertex, SQLITE_TRANSIENT);
      }else{
        sqlite3_bind_value(pUp, 2, aData[2]);
      }
      sqlite3_free(p);
      nChange = 1;
    }
    for(jj=1; jj<pRtree->nAux; jj++){
      nChange++;
      sqlite3_bind_value(pUp, jj+2, aData[jj+2]);
    }
    if( nChange ){
................................................................................
    return SQLITE_INDEX_CONSTRAINT_FUNCTION+1;
  }
  return 0;
}


static sqlite3_module geopolyModule = {
  3,                          /* iVersion */
  geopolyCreate,              /* xCreate - create a table */
  geopolyConnect,             /* xConnect - connect to an existing table */
  geopolyBestIndex,           /* xBestIndex - Determine search strategy */
  rtreeDisconnect,            /* xDisconnect - Disconnect from a table */
  rtreeDestroy,               /* xDestroy - Drop a table */
  rtreeOpen,                  /* xOpen - open a cursor */
  rtreeClose,                 /* xClose - close a cursor */
................................................................................
  rtreeEndTransaction,        /* xCommit - commit transaction */
  rtreeEndTransaction,        /* xRollback - rollback transaction */
  geopolyFindFunction,        /* xFindFunction - function overloading */
  rtreeRename,                /* xRename - rename the table */
  rtreeSavepoint,             /* xSavepoint */
  0,                          /* xRelease */
  0,                          /* xRollbackTo */
  rtreeShadowName             /* xShadowName */
};

static int sqlite3_geopoly_init(sqlite3 *db){
  int rc = SQLITE_OK;
  static const struct {
    void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
    signed char nArg;
    unsigned char bPure;
    const char *zName;
  } aFunc[] = {
     { geopolyAreaFunc,          1, 1,    "geopoly_area"             },
     { geopolyBlobFunc,          1, 1,    "geopoly_blob"             },
     { geopolyJsonFunc,          1, 1,    "geopoly_json"             },
     { geopolySvgFunc,          -1, 1,    "geopoly_svg"              },
     { geopolyWithinFunc,        2, 1,    "geopoly_within"           },
     { geopolyContainsPointFunc, 3, 1,    "geopoly_contains_point"   },
     { geopolyOverlapFunc,       2, 1,    "geopoly_overlap"          },
     { geopolyDebugFunc,         1, 0,    "geopoly_debug"            },
     { geopolyBBoxFunc,          1, 1,    "geopoly_bbox"             },
     { geopolyXformFunc,         7, 1,    "geopoly_xform"            },
     { geopolyRegularFunc,       4, 1,    "geopoly_regular"          },
     { geopolyCcwFunc,           1, 1,    "geopoly_ccw"              },
  };
  static const struct {
    void (*xStep)(sqlite3_context*,int,sqlite3_value**);
    void (*xFinal)(sqlite3_context*);
    const char *zName;
  } aAgg[] = {
     { geopolyBBoxStep, geopolyBBoxFinal, "geopoly_group_bbox"    },
  };
  int i;
  for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){
    int enc = aFunc[i].bPure ? SQLITE_UTF8|SQLITE_DETERMINISTIC : SQLITE_UTF8;
    rc = sqlite3_create_function(db, aFunc[i].zName, aFunc[i].nArg,
                                 enc, 0,
                                 aFunc[i].xFunc, 0, 0);
  }
  for(i=0; i<sizeof(aAgg)/sizeof(aAgg[0]) && rc==SQLITE_OK; i++){
    rc = sqlite3_create_function(db, aAgg[i].zName, 1, SQLITE_UTF8, 0,
                                 0, aAgg[i].xStep, aAgg[i].xFinal);
  }
  if( rc==SQLITE_OK ){
................................................................................
** space used by the RBU handle.
*/
struct rbu_vfs {
  sqlite3_vfs base;               /* rbu VFS shim methods */
  sqlite3_vfs *pRealVfs;          /* Underlying VFS */
  sqlite3_mutex *mutex;           /* Mutex to protect pMain */
  sqlite3rbu *pRbu;               /* Owner RBU object */
  rbu_file *pMain;                /* List of main db files */
  rbu_file *pMainRbu;             /* List of main db files with pRbu!=0 */
};

/*
** Each file opened by an rbu VFS is represented by an instance of
** the following structure.
**
** If this is a temporary file (pRbu!=0 && flags&DELETE_ON_CLOSE), variable
................................................................................
  int nShm;                       /* Number of entries in apShm[] array */
  char **apShm;                   /* Array of mmap'd *-shm regions */
  char *zDel;                     /* Delete this when closing file */

  const char *zWal;               /* Wal filename for this main db file */
  rbu_file *pWalFd;               /* Wal file descriptor for this main db */
  rbu_file *pMainNext;            /* Next MAIN_DB file */
  rbu_file *pMainRbuNext;         /* Next MAIN_DB file with pRbu!=0 */
};

/*
** True for an RBU vacuum handle, or false otherwise.
*/
#define rbuIsVacuum(p) ((p)->zTarget==0)

................................................................................
  i64 nDiff = nNew - pFd->sz;
  pRbu->szTemp += nDiff;
  pFd->sz = nNew;
  assert( pRbu->szTemp>=0 );
  if( pRbu->szTempLimit && pRbu->szTemp>pRbu->szTempLimit ) return SQLITE_FULL;
  return SQLITE_OK;
}

/*
** Add an item to the main-db lists, if it is not already present.
**
** There are two main-db lists. One for all file descriptors, and one
** for all file descriptors with rbu_file.pDb!=0. If the argument has
** rbu_file.pDb!=0, then it is assumed to already be present on the
** main list and is only added to the pDb!=0 list.
*/
static void rbuMainlistAdd(rbu_file *p){
  rbu_vfs *pRbuVfs = p->pRbuVfs;
  rbu_file *pIter;
  assert( (p->openFlags & SQLITE_OPEN_MAIN_DB) );
  sqlite3_mutex_enter(pRbuVfs->mutex);
  if( p->pRbu==0 ){
    for(pIter=pRbuVfs->pMain; pIter; pIter=pIter->pMainNext);
    p->pMainNext = pRbuVfs->pMain;
    pRbuVfs->pMain = p;
  }else{
    for(pIter=pRbuVfs->pMainRbu; pIter && pIter!=p; pIter=pIter->pMainRbuNext){}
    if( pIter==0 ){
      p->pMainRbuNext = pRbuVfs->pMainRbu;
      pRbuVfs->pMainRbu = p;
    }
  }
  sqlite3_mutex_leave(pRbuVfs->mutex);
}

/*
** Remove an item from the main-db lists.
*/
static void rbuMainlistRemove(rbu_file *p){
  rbu_file **pp;
  sqlite3_mutex_enter(p->pRbuVfs->mutex);
  for(pp=&p->pRbuVfs->pMain; *pp && *pp!=p; pp=&((*pp)->pMainNext)){}
  if( *pp ) *pp = p->pMainNext;
  p->pMainNext = 0;
  for(pp=&p->pRbuVfs->pMainRbu; *pp && *pp!=p; pp=&((*pp)->pMainRbuNext)){}
  if( *pp ) *pp = p->pMainRbuNext;
  p->pMainRbuNext = 0;
  sqlite3_mutex_leave(p->pRbuVfs->mutex);
}

/*
** Given that zWal points to a buffer containing a wal file name passed to 
** either the xOpen() or xAccess() VFS method, search the main-db list for
** a file-handle opened by the same database connection on the corresponding
** database file.
**
** If parameter bRbu is true, only search for file-descriptors with
** rbu_file.pDb!=0.
*/
static rbu_file *rbuFindMaindb(rbu_vfs *pRbuVfs, const char *zWal, int bRbu){
  rbu_file *pDb;
  sqlite3_mutex_enter(pRbuVfs->mutex);
  if( bRbu ){
    for(pDb=pRbuVfs->pMainRbu; pDb && pDb->zWal!=zWal; pDb=pDb->pMainRbuNext){}
  }else{
    for(pDb=pRbuVfs->pMain; pDb && pDb->zWal!=zWal; pDb=pDb->pMainNext){}
  }
  sqlite3_mutex_leave(pRbuVfs->mutex);
  return pDb;
}

/*
** Close an rbu file.
*/
static int rbuVfsClose(sqlite3_file *pFile){
  rbu_file *p = (rbu_file*)pFile;
  int rc;
................................................................................
    sqlite3_free(p->apShm[i]);
  }
  sqlite3_free(p->apShm);
  p->apShm = 0;
  sqlite3_free(p->zDel);

  if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
    rbuMainlistRemove(p);




    rbuUnlockShm(p);
    p->pReal->pMethods->xShmUnmap(p->pReal, 0);
  }
  else if( (p->openFlags & SQLITE_OPEN_DELETEONCLOSE) && p->pRbu ){
    rbuUpdateTempSize(p, 0);
  }
  assert( p->pMainNext==0 && p->pRbuVfs->pMain!=p );

  /* Close the underlying file handle */
  rc = p->pReal->pMethods->xClose(p->pReal);
  return rc;
}


................................................................................
      rc = xControl(p->pReal, SQLITE_FCNTL_ZIPVFS, &dummy);
      if( rc==SQLITE_OK ){
        rc = SQLITE_ERROR;
        pRbu->zErrmsg = sqlite3_mprintf("rbu/zipvfs setup error");
      }else if( rc==SQLITE_NOTFOUND ){
        pRbu->pTargetFd = p;
        p->pRbu = pRbu;
        if( p->openFlags & SQLITE_OPEN_MAIN_DB ){
          rbuMainlistAdd(p);
        }
        if( p->pWalFd ) p->pWalFd->pRbu = pRbu;
        rc = SQLITE_OK;
      }
    }
    return rc;
  }
  else if( op==SQLITE_FCNTL_RBUCNT ){
................................................................................
    /* Release the checkpointer and writer locks */
    rbuUnlockShm(p);
    rc = p->pReal->pMethods->xShmUnmap(p->pReal, delFlag);
  }
  return rc;
}















/* 
** A main database named zName has just been opened. The following 
** function returns a pointer to a buffer owned by SQLite that contains
** the name of the *-wal file this db connection will use. SQLite
** happens to pass a pointer to this buffer when using xAccess()
** or xOpen() to operate on the *-wal file.  
*/
................................................................................
      ** (pFd->zWal) to point to a buffer owned by SQLite that contains
      ** the name of the *-wal file this db connection will use. SQLite
      ** happens to pass a pointer to this buffer when using xAccess()
      ** or xOpen() to operate on the *-wal file.  */
      pFd->zWal = rbuMainToWal(zName, flags);
    }
    else if( flags & SQLITE_OPEN_WAL ){
      rbu_file *pDb = rbuFindMaindb(pRbuVfs, zName, 0);
      if( pDb ){
        if( pDb->pRbu && pDb->pRbu->eStage==RBU_STAGE_OAL ){
          /* This call is to open a *-wal file. Intead, open the *-oal. This
          ** code ensures that the string passed to xOpen() is terminated by a
          ** pair of '\0' bytes in case the VFS attempts to extract a URI 
          ** parameter from it.  */
          const char *zBase = zName;
................................................................................
  }
  if( pFd->pReal->pMethods ){
    /* The xOpen() operation has succeeded. Set the sqlite3_file.pMethods
    ** pointer and, if the file is a main database file, link it into the
    ** mutex protected linked list of all such files.  */
    pFile->pMethods = &rbuvfs_io_methods;
    if( flags & SQLITE_OPEN_MAIN_DB ){
      rbuMainlistAdd(pFd);



    }
  }else{
    sqlite3_free(pFd->zDel);
  }

  return rc;
}
................................................................................
  **
  **   b) if the *-wal file does not exist, claim that it does anyway,
  **      causing SQLite to call xOpen() to open it. This call will also
  **      be intercepted (see the rbuVfsOpen() function) and the *-oal
  **      file opened instead.
  */
  if( rc==SQLITE_OK && flags==SQLITE_ACCESS_EXISTS ){
    rbu_file *pDb = rbuFindMaindb(pRbuVfs, zPath, 1);
    if( pDb && pDb->pRbu && pDb->pRbu->eStage==RBU_STAGE_OAL ){
      if( *pResOut ){
        rc = SQLITE_CANTOPEN;
      }else{
        sqlite3_int64 sz = 0;
        rc = rbuVfsFileSize(&pDb->base, &sz);
        *pResOut = (sz>0);
................................................................................
    pCsr->iDb = pTab->iDb;
  }

  *ppCursor = (sqlite3_vtab_cursor *)pCsr;
  return SQLITE_OK;
}

static void statClearCells(StatPage *p){
  int i;
  if( p->aCell ){
    for(i=0; i<p->nCell; i++){
      sqlite3_free(p->aCell[i].aOvfl);
    }
    sqlite3_free(p->aCell);
  }
  p->nCell = 0;
  p->aCell = 0;
}

static void statClearPage(StatPage *p){
  statClearCells(p);
  sqlite3PagerUnref(p->pPg);
  sqlite3_free(p->zPath);
  memset(p, 0, sizeof(StatPage));
}

static void statResetCsr(StatCursor *pCsr){
  int i;
................................................................................
  int isLeaf;
  int szPage;

  u8 *aData = sqlite3PagerGetData(p->pPg);
  u8 *aHdr = &aData[p->iPgno==1 ? 100 : 0];

  p->flags = aHdr[0];
  if( p->flags==0x0A || p->flags==0x0D ){
    isLeaf = 1;
    nHdr = 8;
  }else if( p->flags==0x05 || p->flags==0x02 ){
    isLeaf = 0;
    nHdr = 12;
  }else{
    goto statPageIsCorrupt;
  }
  if( p->iPgno==1 ) nHdr += 100;
  p->nCell = get2byte(&aHdr[3]);
  p->nMxPayload = 0;



  szPage = sqlite3BtreeGetPageSize(pBt);

  nUnused = get2byte(&aHdr[5]) - nHdr - 2*p->nCell;
  nUnused += (int)aHdr[7];
  iOff = get2byte(&aHdr[1]);
  while( iOff ){
    int iNext;
    if( iOff>=szPage ) goto statPageIsCorrupt;
    nUnused += get2byte(&aData[iOff+2]);
    iNext = get2byte(&aData[iOff]);
    if( iNext<iOff+4 && iNext>0 ) goto statPageIsCorrupt;
    iOff = iNext;
  }
  p->nUnused = nUnused;
  p->iRightChildPg = isLeaf ? 0 : sqlite3Get4byte(&aHdr[8]);


  if( p->nCell ){
    int i;                        /* Used to iterate through cells */
    int nUsable;                  /* Usable bytes per page */

    sqlite3BtreeEnter(pBt);
    nUsable = szPage - sqlite3BtreeGetReserveNoMutex(pBt);
................................................................................
    if( p->aCell==0 ) return SQLITE_NOMEM_BKPT;
    memset(p->aCell, 0, (p->nCell+1) * sizeof(StatCell));

    for(i=0; i<p->nCell; i++){
      StatCell *pCell = &p->aCell[i];

      iOff = get2byte(&aData[nHdr+i*2]);
      if( iOff<nHdr || iOff>=szPage ) goto statPageIsCorrupt;
      if( !isLeaf ){
        pCell->iChildPg = sqlite3Get4byte(&aData[iOff]);
        iOff += 4;
      }
      if( p->flags==0x05 ){
        /* A table interior node. nPayload==0. */
      }else{
................................................................................
        iOff += getVarint32(&aData[iOff], nPayload);
        if( p->flags==0x0D ){
          u64 dummy;
          iOff += sqlite3GetVarint(&aData[iOff], &dummy);
        }
        if( nPayload>(u32)p->nMxPayload ) p->nMxPayload = nPayload;
        getLocalPayload(nUsable, p->flags, nPayload, &nLocal);
        if( nLocal<0 ) goto statPageIsCorrupt;
        pCell->nLocal = nLocal;

        assert( nPayload>=(u32)nLocal );
        assert( nLocal<=(nUsable-35) );
        if( nPayload>(u32)nLocal ){
          int j;
          int nOvfl = ((nPayload - nLocal) + nUsable-4 - 1) / (nUsable - 4);
          pCell->nLastOvfl = (nPayload-nLocal) - (nOvfl-1) * (nUsable-4);
          pCell->nOvfl = nOvfl;
................................................................................
          }
        }
      }
    }
  }

  return SQLITE_OK;

statPageIsCorrupt:
  p->flags = 0;
  statClearCells(p);
  return SQLITE_OK;
}

/*
** Populate the pCsr->iOffset and pCsr->szPage member variables. Based on
** the current value of pCsr->iPageno.
*/
static void statSizeAndOffset(StatCursor *pCsr){
................................................................................
    0,                            /* xCommit */
    0,                            /* xRollback */
    0,                            /* xFindMethod */
    0,                            /* xRename */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0,                            /* xRollbackTo */
    0                             /* xShadowName */
  };
  return sqlite3_create_module(db, "dbstat", &dbstat_module, 0);
}
#elif defined(SQLITE_ENABLE_DBSTAT_VTAB)
SQLITE_PRIVATE int sqlite3DbstatRegister(sqlite3 *db){ return SQLITE_OK; }
#endif /* SQLITE_ENABLE_DBSTAT_VTAB */

................................................................................
  char *zErr = 0;
  const char *zSchema;
  int iDb;
  Btree *pBt;
  Pager *pPager;
  int szPage;

  if( pTab->db->flags & SQLITE_Defensive ){
    zErr = "read-only";
    goto update_fail;
  }
  if( argc==1 ){
    zErr = "cannot delete";
    goto update_fail;
  }
  pgno = sqlite3_value_int(argv[0]);
  if( (Pgno)sqlite3_value_int(argv[1])!=pgno ){
    zErr = "cannot insert";
................................................................................
    0,                            /* xCommit */
    0,                            /* xRollback */
    0,                            /* xFindMethod */
    0,                            /* xRename */
    0,                            /* xSavepoint */
    0,                            /* xRelease */
    0,                            /* xRollbackTo */
    0                             /* xShadowName */
  };
  return sqlite3_create_module(db, "sqlite_dbpage", &dbpage_module, 0);
}
#elif defined(SQLITE_ENABLE_DBPAGE_VTAB)
SQLITE_PRIVATE int sqlite3DbpageRegister(sqlite3 *db){ return SQLITE_OK; }
#endif /* SQLITE_ENABLE_DBSTAT_VTAB */

................................................................................
#ifndef SESSIONS_STRM_CHUNK_SIZE
# ifdef SQLITE_TEST
#   define SESSIONS_STRM_CHUNK_SIZE 64
# else
#   define SESSIONS_STRM_CHUNK_SIZE 1024
# endif
#endif

static int sessions_strm_chunk_size = SESSIONS_STRM_CHUNK_SIZE;

typedef struct SessionHook SessionHook;
struct SessionHook {
  void *pCtx;
  int (*xOld)(void*,int,sqlite3_value**);
  int (*xNew)(void*,int,sqlite3_value**);
  int (*xCount)(void*);
................................................................................
/*
** Structure for changeset iterators.
*/
struct sqlite3_changeset_iter {
  SessionInput in;                /* Input buffer or stream */
  SessionBuffer tblhdr;           /* Buffer to hold apValue/zTab/abPK/ */
  int bPatchset;                  /* True if this is a patchset */
  int bInvert;                    /* True to invert changeset */
  int rc;                         /* Iterator error code */
  sqlite3_stmt *pConflict;        /* Points to conflicting row, if any */
  char *zTab;                     /* Current table */
  int nCol;                       /* Number of columns in zTab */
  int op;                         /* Current operation */
  int bIndirect;                  /* True if current change was indirect */
  u8 *abPK;                       /* Primary key array */
................................................................................
** columns and columns that are modified by the UPDATE are set to "undefined".
** PRIMARY KEY fields contain the values identifying the table row to update,
** and fields associated with modified columns contain the new column values.
**
** The records associated with INSERT changes are in the same format as for
** changesets. It is not possible for a record associated with an INSERT
** change to contain a field set to "undefined".
**
** REBASE BLOB FORMAT:
**
** A rebase blob may be output by sqlite3changeset_apply_v2() and its 
** streaming equivalent for use with the sqlite3_rebaser APIs to rebase
** existing changesets. A rebase blob contains one entry for each conflict
** resolved using either the OMIT or REPLACE strategies within the apply_v2()
** call.
**
** The format used for a rebase blob is very similar to that used for
** changesets. All entries related to a single table are grouped together.
**
** Each group of entries begins with a table header in changeset format:
**
**   1 byte: Constant 0x54 (capital 'T')
**   Varint: Number of columns in the table.
**   nCol bytes: 0x01 for PK columns, 0x00 otherwise.
**   N bytes: Unqualified table name (encoded using UTF-8). Nul-terminated.
**
** Followed by one or more entries associated with the table.
**
**   1 byte: Either SQLITE_INSERT (0x12), DELETE (0x09).
**   1 byte: Flag. 0x01 for REPLACE, 0x00 for OMIT.
**   record: (in the record format defined above).
**
** In a rebase blob, the first field is set to SQLITE_INSERT if the change
** that caused the conflict was an INSERT or UPDATE, or to SQLITE_DELETE if
** it was a DELETE. The second field is set to 0x01 if the conflict 
** resolution strategy was REPLACE, or 0x00 if it was OMIT.
**
** If the change that caused the conflict was a DELETE, then the single
** record is a copy of the old.* record from the original changeset. If it
** was an INSERT, then the single record is a copy of the new.* record. If
** the conflicting change was an UPDATE, then the single record is a copy
** of the new.* record with the PK fields filled in based on the original
** old.* record.
*/

/*
** For each row modified during a session, there exists a single instance of
** this structure stored in a SessionTable.aChange[] hash table.
*/
struct SessionChange {
................................................................................
**
** If successful, return zero. Otherwise, if an OOM condition is encountered,
** set *pRc to SQLITE_NOMEM and return non-zero.
*/
static int sessionBufferGrow(SessionBuffer *p, int nByte, int *pRc){
  if( *pRc==SQLITE_OK && p->nAlloc-p->nBuf<nByte ){
    u8 *aNew;
    i64 nNew = p->nAlloc ? p->nAlloc : 128;
    do {
      nNew = nNew*2;
    }while( (nNew-p->nBuf)<nByte );

    aNew = (u8 *)sqlite3_realloc64(p->aBuf, nNew);
    if( 0==aNew ){
      *pRc = SQLITE_NOMEM;
    }else{
      p->aBuf = aNew;
      p->nAlloc = nNew;
    }
  }
................................................................................
          }else if( p->op!=SQLITE_INSERT ){
            rc = sessionAppendDelete(&buf, bPatchset, p, nCol, abPK);
          }
          if( rc==SQLITE_OK ){
            rc = sqlite3_reset(pSel);
          }

          /* If the buffer is now larger than sessions_strm_chunk_size, pass
          ** its contents to the xOutput() callback. */
          if( xOutput 
           && rc==SQLITE_OK 
           && buf.nBuf>nNoop 
           && buf.nBuf>sessions_strm_chunk_size 
          ){
            rc = xOutput(pOut, (void*)buf.aBuf, buf.nBuf);
            nNoop = -1;
            buf.nBuf = 0;
          }

        }
................................................................................
** Do the work for either sqlite3changeset_start() or start_strm().
*/
static int sessionChangesetStart(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int nChangeset,                 /* Size of buffer pChangeset in bytes */
  void *pChangeset,               /* Pointer to buffer containing changeset */
  int bInvert                     /* True to invert changeset */
){
  sqlite3_changeset_iter *pRet;   /* Iterator to return */
  int nByte;                      /* Number of bytes to allocate for iterator */

  assert( xInput==0 || (pChangeset==0 && nChangeset==0) );

  /* Zero the output variable in case an error occurs. */
................................................................................
  if( !pRet ) return SQLITE_NOMEM;
  memset(pRet, 0, sizeof(sqlite3_changeset_iter));
  pRet->in.aData = (u8 *)pChangeset;
  pRet->in.nData = nChangeset;
  pRet->in.xInput = xInput;
  pRet->in.pIn = pIn;
  pRet->in.bEof = (xInput ? 0 : 1);
  pRet->bInvert = bInvert;

  /* Populate the output variable and return success. */
  *pp = pRet;
  return SQLITE_OK;
}

/*
................................................................................
** Create an iterator used to iterate through the contents of a changeset.
*/
SQLITE_API int sqlite3changeset_start(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int nChangeset,                 /* Size of buffer pChangeset in bytes */
  void *pChangeset                /* Pointer to buffer containing changeset */
){
  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset, 0);
}
SQLITE_API int sqlite3changeset_start_v2(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int nChangeset,                 /* Size of buffer pChangeset in bytes */
  void *pChangeset,               /* Pointer to buffer containing changeset */
  int flags
){
  int bInvert = !!(flags & SQLITE_CHANGESETSTART_INVERT);
  return sessionChangesetStart(pp, 0, 0, nChangeset, pChangeset, bInvert);
}

/*
** Streaming version of sqlite3changeset_start().
*/
SQLITE_API int sqlite3changeset_start_strm(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn
){
  return sessionChangesetStart(pp, xInput, pIn, 0, 0, 0);
}
SQLITE_API int sqlite3changeset_start_v2_strm(
  sqlite3_changeset_iter **pp,    /* OUT: Changeset iterator handle */
  int (*xInput)(void *pIn, void *pData, int *pnData),
  void *pIn,
  int flags
){
  int bInvert = !!(flags & SQLITE_CHANGESETSTART_INVERT);
  return sessionChangesetStart(pp, xInput, pIn, 0, 0, bInvert);
}

/*
** If the SessionInput object passed as the only argument is a streaming
** object and the buffer is full, discard some data to free up space.
*/
static void sessionDiscardData(SessionInput *pIn){
  if( pIn->xInput && pIn->iNext>=sessions_strm_chunk_size ){
    int nMove = pIn->buf.nBuf - pIn->iNext;
    assert( nMove>=0 );
    if( nMove>0 ){
      memmove(pIn->buf.aBuf, &pIn->buf.aBuf[pIn->iNext], nMove);
    }
    pIn->buf.nBuf -= pIn->iNext;
    pIn->iNext = 0;
................................................................................
**
** Return an SQLite error code if an error occurs, or SQLITE_OK otherwise.
*/
static int sessionInputBuffer(SessionInput *pIn, int nByte){
  int rc = SQLITE_OK;
  if( pIn->xInput ){
    while( !pIn->bEof && (pIn->iNext+nByte)>=pIn->nData && rc==SQLITE_OK ){
      int nNew = sessions_strm_chunk_size;

      if( pIn->bNoDiscard==0 ) sessionDiscardData(pIn);
      if( SQLITE_OK==sessionBufferGrow(&pIn->buf, nNew, &rc) ){
        rc = pIn->xInput(pIn->pIn, &pIn->buf.aBuf[pIn->buf.nBuf], &nNew);
        if( nNew==0 ){
          pIn->bEof = 1;
        }else{
................................................................................
    if( sessionChangesetReadTblhdr(p) ) return p->rc;
    if( (p->rc = sessionInputBuffer(&p->in, 2)) ) return p->rc;
    p->in.iCurrent = p->in.iNext;
    if( p->in.iNext>=p->in.nData ) return SQLITE_DONE;
    op = p->in.aData[p->in.iNext++];
  }

  if( p->zTab==0 || (p->bPatchset && p->bInvert) ){
    /* The first record in the changeset is not a table header. Must be a
    ** corrupt changeset. */
    assert( p->in.iNext==1 || p->zTab );
    return (p->rc = SQLITE_CORRUPT_BKPT);
  }

  p->op = op;
  p->bIndirect = p->in.aData[p->in.iNext++];
  if( p->op!=SQLITE_UPDATE && p->op!=SQLITE_DELETE && p->op!=SQLITE_INSERT ){
    return (p->rc = SQLITE_CORRUPT_BKPT);
................................................................................
      nVal = p->nCol;
    }
    p->rc = sessionChangesetBufferRecord(&p->in, nVal, pnRec);
    if( p->rc!=SQLITE_OK ) return p->rc;
    *paRec = &p->in.aData[p->in.iNext];
    p->in.iNext += *pnRec;
  }else{
    sqlite3_value **apOld = (p->bInvert ? &p->apValue[p->nCol] : p->apValue);
    sqlite3_value **apNew = (p->bInvert ? p->apValue : &p->apValue[p->nCol]);

    /* If this is an UPDATE or DELETE, read the old.* record. */
    if( p->op!=SQLITE_INSERT && (p->bPatchset==0 || p->op==SQLITE_DELETE) ){
      u8 *abPK = p->bPatchset ? p->abPK : 0;
      p->rc = sessionReadRecord(&p->in, p->nCol, abPK, apOld);
      if( p->rc!=SQLITE_OK ) return p->rc;
    }

    /* If this is an INSERT or UPDATE, read the new.* record. */
    if( p->op!=SQLITE_DELETE ){
      p->rc = sessionReadRecord(&p->in, p->nCol, 0, apNew);
      if( p->rc!=SQLITE_OK ) return p->rc;
    }

    if( (p->bPatchset || p->bInvert) && p->op==SQLITE_UPDATE ){
      /* If this is an UPDATE that is part of a patchset, then all PK and
      ** modified fields are present in the new.* record. The old.* record
      ** is currently completely empty. This block shifts the PK fields from
      ** new.* to old.*, to accommodate the code that reads these arrays.  */
      for(i=0; i<p->nCol; i++){
        assert( p->bPatchset==0 || p->apValue[i]==0 );
        if( p->abPK[i] ){
          assert( p->apValue[i]==0 );
          p->apValue[i] = p->apValue[i+p->nCol];
          if( p->apValue[i]==0 ) return (p->rc = SQLITE_CORRUPT_BKPT);
          p->apValue[i+p->nCol] = 0;
        }
      }
    }else if( p->bInvert ){
      if( p->op==SQLITE_INSERT ) p->op = SQLITE_DELETE;
      else if( p->op==SQLITE_DELETE ) p->op = SQLITE_INSERT;
    }
  }

  return SQLITE_ROW;
}

/*
................................................................................

      default:
        rc = SQLITE_CORRUPT_BKPT;
        goto finished_invert;
    }

    assert( rc==SQLITE_OK );
    if( xOutput && sOut.nBuf>=sessions_strm_chunk_size ){
      rc = xOutput(pOut, sOut.aBuf, sOut.nBuf);
      sOut.nBuf = 0;
      if( rc!=SQLITE_OK ) goto finished_invert;
    }
  }

  assert( rc==SQLITE_OK );
................................................................................
  int nCol;                       /* Size of azCol[] and abPK[] arrays */
  const char **azCol;             /* Array of column names */
  u8 *abPK;                       /* Boolean array - true if column is in PK */
  int bStat1;                     /* True if table is sqlite_stat1 */
  int bDeferConstraints;          /* True to defer constraints */
  SessionBuffer constraints;      /* Deferred constraints are stored here */
  SessionBuffer rebase;           /* Rebase information (if any) here */
  u8 bRebaseStarted;              /* If table header is already in rebase */
  u8 bRebase;                     /* True to collect rebase information */
};

/*
** Formulate a statement to DELETE a row from database db. Assuming a table
** structure like this:
**
**     CREATE TABLE x(a, b, c, d, PRIMARY KEY(a, c));
................................................................................
*/
static int sessionRebaseAdd(
  SessionApplyCtx *p,             /* Apply context */
  int eType,                      /* Conflict resolution (OMIT or REPLACE) */
  sqlite3_changeset_iter *pIter   /* Iterator pointing at current change */
){
  int rc = SQLITE_OK;
  if( p->bRebase ){
    int i;
    int eOp = pIter->op;
    if( p->bRebaseStarted==0 ){
      /* Append a table-header to the rebase buffer */
      const char *zTab = pIter->zTab;
      sessionAppendByte(&p->rebase, 'T', &rc);
      sessionAppendVarint(&p->rebase, p->nCol, &rc);
      sessionAppendBlob(&p->rebase, p->abPK, p->nCol, &rc);
      sessionAppendBlob(&p->rebase, (u8*)zTab, (int)strlen(zTab)+1, &rc);
      p->bRebaseStarted = 1;
    }

    assert( eType==SQLITE_CHANGESET_REPLACE||eType==SQLITE_CHANGESET_OMIT );
    assert( eOp==SQLITE_DELETE || eOp==SQLITE_INSERT || eOp==SQLITE_UPDATE );

    sessionAppendByte(&p->rebase, 
        (eOp==SQLITE_DELETE ? SQLITE_DELETE : SQLITE_INSERT), &rc
        );
    sessionAppendByte(&p->rebase, (eType==SQLITE_CHANGESET_REPLACE), &rc);
    for(i=0; i<p->nCol; i++){
      sqlite3_value *pVal = 0;
      if( eOp==SQLITE_DELETE || (eOp==SQLITE_UPDATE && p->abPK[i]) ){
        sqlite3changeset_old(pIter, i, &pVal);
      }else{