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Overview
Comment:Update the built-in SQLite to 3.6.23.1 release candidate 1.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 340d3398e6142453e7226dfb7143f8dac2e54301
User & Date: drh 2010-03-27 12:56:59
Context
2010-03-28
23:20
In the graph algorithm, try to put branches on rails as close as possible to their parent. check-in: 42bbfe9d user: drh tags: trunk
2010-03-27
12:56
Update the built-in SQLite to 3.6.23.1 release candidate 1. check-in: 340d3398 user: drh tags: trunk
2010-03-25
13:52
Added the 'New Ticket' link to the ticket report view check-in: f3df06b0 user: jeremy tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/sqlite3.c.

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/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version 3.6.23.  By combining all the individual C code files into this 
** single large file, the entire code can be compiled as a one translation
** unit.  This allows many compilers to do optimizations that would not be
** possible if the files were compiled separately.  Performance improvements
** of 5% are 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
................................................................................
** string contains the date and time of the check-in (UTC) and an SHA1
** hash of the entire source tree.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.6.23"
#define SQLITE_VERSION_NUMBER 3006023
#define SQLITE_SOURCE_ID      "2010-03-05 13:53:23 27413fc8dd52b754b4be9344a66bb9e0d752d48e"

/*
** 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
................................................................................

SQLITE_PRIVATE const void *sqlite3ValueText(sqlite3_value*, u8);
SQLITE_PRIVATE int sqlite3ValueBytes(sqlite3_value*, u8);
SQLITE_PRIVATE void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8, 
                        void(*)(void*));
SQLITE_PRIVATE void sqlite3ValueFree(sqlite3_value*);
SQLITE_PRIVATE sqlite3_value *sqlite3ValueNew(sqlite3 *);
SQLITE_PRIVATE char *sqlite3Utf16to8(sqlite3 *, const void*, int);
#ifdef SQLITE_ENABLE_STAT2
SQLITE_PRIVATE char *sqlite3Utf8to16(sqlite3 *, u8, char *, int, int *);
#endif
SQLITE_PRIVATE int sqlite3ValueFromExpr(sqlite3 *, Expr *, u8, u8, sqlite3_value **);
SQLITE_PRIVATE void sqlite3ValueApplyAffinity(sqlite3_value *, u8, u8);
#ifndef SQLITE_AMALGAMATION
SQLITE_PRIVATE const unsigned char sqlite3OpcodeProperty[];
................................................................................
** created by mkopcodeh.awk during compilation.  Data is obtained
** from the comments following the "case OP_xxxx:" statements in
** the vdbe.c file.  
*/
SQLITE_PRIVATE const unsigned char sqlite3OpcodeProperty[] = OPFLG_INITIALIZER;

/************** End of global.c **********************************************/



































































































































































































































































































































































































/************** Begin file status.c ******************************************/
/*
** 2008 June 18
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
................................................................................
/*
** Free memory.
*/
static void sqlite3MemFree(void *pPrior){
  struct MemBlockHdr *pHdr;
  void **pBt;
  char *z;
  assert( sqlite3GlobalConfig.bMemstat || mem.mutex!=0 );

  pHdr = sqlite3MemsysGetHeader(pPrior);
  pBt = (void**)pHdr;
  pBt -= pHdr->nBacktraceSlots;
  sqlite3_mutex_enter(mem.mutex);
  if( pHdr->pPrev ){
    assert( pHdr->pPrev->pNext==pHdr );
    pHdr->pPrev->pNext = pHdr->pNext;
................................................................................
#ifdef SQLITE_DEBUG
  if( p->trace ){
    printf("enter mutex %p (%d) with nRef=%d\n", p, p->trace, p->nRef);
  }
#endif
}
static int winMutexTry(sqlite3_mutex *p){

  DWORD tid = GetCurrentThreadId(); 

  int rc = SQLITE_BUSY;
  assert( p->id==SQLITE_MUTEX_RECURSIVE || winMutexNotheld2(p, tid) );
  /*
  ** The sqlite3_mutex_try() routine is very rarely used, and when it
  ** is used it is merely an optimization.  So it is OK for it to always
  ** fail.  
  **
................................................................................
/*
** The sqlite3_mutex_leave() routine exits a mutex that was
** previously entered by the same thread.  The behavior
** is undefined if the mutex is not currently entered or
** is not currently allocated.  SQLite will never do either.
*/
static void winMutexLeave(sqlite3_mutex *p){

  DWORD tid = GetCurrentThreadId(); 

  assert( p->nRef>0 );
  assert( p->owner==tid );
  p->nRef--;
  assert( p->nRef==0 || p->id==SQLITE_MUTEX_RECURSIVE );
  LeaveCriticalSection(&p->mutex);
#ifdef SQLITE_DEBUG
  if( p->trace ){
................................................................................
/*
** Convert a UTF-16 string in the native encoding into a UTF-8 string.
** Memory to hold the UTF-8 string is obtained from sqlite3_malloc and must
** be freed by the calling function.
**
** NULL is returned if there is an allocation error.
*/
SQLITE_PRIVATE char *sqlite3Utf16to8(sqlite3 *db, const void *z, int nByte){
  Mem m;
  memset(&m, 0, sizeof(m));
  m.db = db;
  sqlite3VdbeMemSetStr(&m, z, nByte, SQLITE_UTF16NATIVE, SQLITE_STATIC);
  sqlite3VdbeChangeEncoding(&m, SQLITE_UTF8);
  if( db->mallocFailed ){
    sqlite3VdbeMemRelease(&m);
    m.z = 0;
  }
  assert( (m.flags & MEM_Term)!=0 || db->mallocFailed );
  assert( (m.flags & MEM_Str)!=0 || db->mallocFailed );
  return (m.flags & MEM_Dyn)!=0 ? m.z : sqlite3DbStrDup(db, m.z);


}

/*
** Convert a UTF-8 string to the UTF-16 encoding specified by parameter
** enc. A pointer to the new string is returned, and the value of *pnOut
** is set to the length of the returned string in bytes. The call should
** arrange to call sqlite3DbFree() on the returned pointer when it is
................................................................................
    a |= b;
    *v = a;
    return 2;
  }

  /* Verify that constants are precomputed correctly */
  assert( SLOT_2_0 == ((0x7f<<14) | (0x7f)) );
  assert( SLOT_4_2_0 == ((0xf<<28) | (0x7f<<14) | (0x7f)) );

  p++;
  a = a<<14;
  a |= *p;
  /* a: p0<<14 | p2 (unmasked) */
  if (!(a&0x80))
  {
................................................................................
  pPager->changeCountDone = pPager->tempFile;

  if( rc==SQLITE_OK ){
    zMaster = pPager->pTmpSpace;
    rc = readMasterJournal(pPager->jfd, zMaster, pPager->pVfs->mxPathname+1);
    testcase( rc!=SQLITE_OK );
  }



  if( rc==SQLITE_OK ){
    rc = pager_end_transaction(pPager, zMaster[0]!='\0');
    testcase( rc!=SQLITE_OK );
  }
  if( rc==SQLITE_OK && zMaster[0] && res ){
    /* If there was a master journal and this routine will return success,
    ** see if it is possible to delete the master journal.
................................................................................
  }else if( memDb ){
    pPager->journalMode = PAGER_JOURNALMODE_MEMORY;
  }
  /* pPager->xBusyHandler = 0; */
  /* pPager->pBusyHandlerArg = 0; */
  pPager->xReiniter = xReinit;
  /* memset(pPager->aHash, 0, sizeof(pPager->aHash)); */

  *ppPager = pPager;
  return SQLITE_OK;
}



/*
................................................................................
  }
  iOffset = (pgno-1)*(i64)pPager->pageSize;
  rc = sqlite3OsRead(pPager->fd, pPg->pData, pPager->pageSize, iOffset);
  if( rc==SQLITE_IOERR_SHORT_READ ){
    rc = SQLITE_OK;
  }
  if( pgno==1 ){















    u8 *dbFileVers = &((u8*)pPg->pData)[24];
    memcpy(&pPager->dbFileVers, dbFileVers, sizeof(pPager->dbFileVers));

  }
  CODEC1(pPager, pPg->pData, pgno, 3, rc = SQLITE_NOMEM);

  PAGER_INCR(sqlite3_pager_readdb_count);
  PAGER_INCR(pPager->nRead);
  IOTRACE(("PGIN %p %d\n", pPager, pgno));
  PAGERTRACE(("FETCH %d page %d hash(%08x)\n",
................................................................................
    /* If this is a release of the outermost savepoint, truncate 
    ** the sub-journal to zero bytes in size. */
    if( op==SAVEPOINT_RELEASE ){
      if( nNew==0 && isOpen(pPager->sjfd) ){
        /* Only truncate if it is an in-memory sub-journal. */
        if( sqlite3IsMemJournal(pPager->sjfd) ){
          rc = sqlite3OsTruncate(pPager->sjfd, 0);

        }
        pPager->nSubRec = 0;
      }
    }
    /* Else this is a rollback operation, playback the specified savepoint.
    ** If this is a temp-file, it is possible that the journal file has
    ** not yet been opened. In this case there have been no changes to
................................................................................
      return SQLITE_CORRUPT_BKPT;
    }
    if( nOvfl ){
      rc = getOverflowPage(pBt, ovflPgno, &pOvfl, &iNext);
      if( rc ) return rc;
    }

    if( (pOvfl || (pOvfl = btreePageLookup(pBt, ovflPgno)))
     && sqlite3PagerPageRefcount(pOvfl->pDbPage)!=1
    ){
      /* There is no reason any cursor should have an outstanding reference 
      ** to an overflow page belonging to a cell that is being deleted/updated.
      ** So if there exists more than one reference to this page, then it 
      ** must not really be an overflow page and the database must be corrupt. 
      ** It is helpful to detect this before calling freePage2(), as 
................................................................................
      **
      ** Unless SQLite is compiled in secure-delete mode. In this case,
      ** the dropCell() routine will overwrite the entire cell with zeroes.
      ** In this case, temporarily copy the cell into the aOvflSpace[]
      ** buffer. It will be copied out again as soon as the aSpace[] buffer
      ** is allocated.  */
      if( pBt->secureDelete ){
        int iOff = apDiv[i] - pParent->aData;
        if( (iOff+szNew[i])>pBt->usableSize ){
          rc = SQLITE_CORRUPT_BKPT;
          memset(apOld, 0, (i+1)*sizeof(MemPage*));
          goto balance_cleanup;
        }else{
          memcpy(&aOvflSpace[iOff], apDiv[i], szNew[i]);
          apDiv[i] = &aOvflSpace[apDiv[i]-pParent->aData];
................................................................................
** and flags gets srcType (either MEM_Ephem or MEM_Static).
*/
SQLITE_PRIVATE void sqlite3VdbeMemShallowCopy(Mem *pTo, const Mem *pFrom, int srcType){
  assert( (pFrom->flags & MEM_RowSet)==0 );
  sqlite3VdbeMemReleaseExternal(pTo);
  memcpy(pTo, pFrom, MEMCELLSIZE);
  pTo->xDel = 0;
  if( (pFrom->flags&MEM_Dyn)!=0 || pFrom->z==pFrom->zMalloc ){
    pTo->flags &= ~(MEM_Dyn|MEM_Static|MEM_Ephem);
    assert( srcType==MEM_Ephem || srcType==MEM_Static );
    pTo->flags |= srcType;
  }
}

/*
................................................................................
        db->autoCommit = 1;
      }
    }
  
    /* If eStatementOp is non-zero, then a statement transaction needs to
    ** be committed or rolled back. Call sqlite3VdbeCloseStatement() to
    ** do so. If this operation returns an error, and the current statement
    ** error code is SQLITE_OK or SQLITE_CONSTRAINT, then set the error
    ** code to the new value.





    */
    if( eStatementOp ){
      rc = sqlite3VdbeCloseStatement(p, eStatementOp);
      if( rc && (p->rc==SQLITE_OK || p->rc==SQLITE_CONSTRAINT) ){
        p->rc = rc;
        sqlite3DbFree(db, p->zErrMsg);
        p->zErrMsg = 0;
      }
    }
  
    /* If this was an INSERT, UPDATE or DELETE and no statement transaction
................................................................................
** do so without loss of information.  In other words, if the string
** looks like a number, convert it into a number.  If it does not
** look like a number, leave it alone.
*/
static void applyNumericAffinity(Mem *pRec){
  if( (pRec->flags & (MEM_Real|MEM_Int))==0 ){
    int realnum;

    sqlite3VdbeMemNulTerminate(pRec);
    if( (pRec->flags&MEM_Str)
         && sqlite3IsNumber(pRec->z, &realnum, pRec->enc) ){
      i64 value;
      sqlite3VdbeChangeEncoding(pRec, SQLITE_UTF8);







      if( !realnum && sqlite3Atoi64(pRec->z, &value) ){
        pRec->u.i = value;
        MemSetTypeFlag(pRec, MEM_Int);
      }else{
        sqlite3VdbeMemRealify(pRec);

      }





    }
  }
}

/*
** Processing is determine by the affinity parameter:
**
................................................................................
    struct OP_ShiftRight_stack_vars {
      i64 a;
      i64 b;
    } ah;
    struct OP_Ge_stack_vars {
      int res;            /* Result of the comparison of pIn1 against pIn3 */
      char affinity;      /* Affinity to use for comparison */


    } ai;
    struct OP_Compare_stack_vars {
      int n;
      int i;
      int p1;
      int p2;
      const KeyInfo *pKeyInfo;
................................................................................
case OP_Lt:               /* same as TK_LT, jump, in1, in3 */
case OP_Le:               /* same as TK_LE, jump, in1, in3 */
case OP_Gt:               /* same as TK_GT, jump, in1, in3 */
case OP_Ge: {             /* same as TK_GE, jump, in1, in3 */
#if 0  /* local variables moved into u.ai */
  int res;            /* Result of the comparison of pIn1 against pIn3 */
  char affinity;      /* Affinity to use for comparison */


#endif /* local variables moved into u.ai */

  pIn1 = &aMem[pOp->p1];
  pIn3 = &aMem[pOp->p3];


  if( (pIn1->flags | pIn3->flags)&MEM_Null ){
    /* One or both operands are NULL */
    if( pOp->p5 & SQLITE_NULLEQ ){
      /* If SQLITE_NULLEQ is set (which will only happen if the operator is
      ** OP_Eq or OP_Ne) then take the jump or not depending on whether
      ** or not both operands are null.
      */
................................................................................
    pOut = &aMem[pOp->p2];
    MemSetTypeFlag(pOut, MEM_Int);
    pOut->u.i = u.ai.res;
    REGISTER_TRACE(pOp->p2, pOut);
  }else if( u.ai.res ){
    pc = pOp->p2-1;
  }




  break;
}

/* Opcode: Permutation * * * P4 *
**
** Set the permutation used by the OP_Compare operator to be the array
** of integers in P4.
................................................................................
  CollSeq *p4;

  p4 = sqlite3BinaryCompareCollSeq(pParse, pLeft, pRight);
  p5 = binaryCompareP5(pLeft, pRight, jumpIfNull);
  addr = sqlite3VdbeAddOp4(pParse->pVdbe, opcode, in2, dest, in1,
                           (void*)p4, P4_COLLSEQ);
  sqlite3VdbeChangeP5(pParse->pVdbe, (u8)p5);
  if( (p5 & SQLITE_AFF_MASK)!=SQLITE_AFF_NONE ){
    sqlite3ExprCacheAffinityChange(pParse, in1, 1);
    sqlite3ExprCacheAffinityChange(pParse, in2, 1);
  }
  return addr;
}

#if SQLITE_MAX_EXPR_DEPTH>0
/*
** Check that argument nHeight is less than or equal to the maximum
** expression depth allowed. If it is not, leave an error message in
................................................................................
    sqlite3HashInit(&p->fkeyHash);
    p->enc = SQLITE_UTF8;
  }
  return p;
}

/************** End of callback.c ********************************************/
/************** Begin file ctime.c *******************************************/
/*
** 2010 February 23
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    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 file implements routines used to report what compile-time options
** SQLite was built with.
*/

#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS


/*
** An array of names of all compile-time options.  This array should 
** be sorted A-Z.
**
** This array looks large, but in a typical installation actually uses
** only a handful of compile-time options, so most times this array is usually
** rather short and uses little memory space.
*/
static const char * const azCompileOpt[] = {

/* These macros are provided to "stringify" the value of the define
** for those options in which the value is meaningful. */
#define CTIMEOPT_VAL_(opt) #opt
#define CTIMEOPT_VAL(opt) CTIMEOPT_VAL_(opt)

#ifdef SQLITE_32BIT_ROWID
  "32BIT_ROWID",
#endif
#ifdef SQLITE_4_BYTE_ALIGNED_MALLOC
  "4_BYTE_ALIGNED_MALLOC",
#endif
#ifdef SQLITE_CASE_SENSITIVE_LIKE
  "CASE_SENSITIVE_LIKE",
#endif
#ifdef SQLITE_CHECK_PAGES
  "CHECK_PAGES",
#endif
#ifdef SQLITE_COVERAGE_TEST
  "COVERAGE_TEST",
#endif
#ifdef SQLITE_DEBUG
  "DEBUG",
#endif
#ifdef SQLITE_DEFAULT_LOCKING_MODE
  "DEFAULT_LOCKING_MODE=" CTIMEOPT_VAL(SQLITE_DEFAULT_LOCKING_MODE),
#endif
#ifdef SQLITE_DISABLE_DIRSYNC
  "DISABLE_DIRSYNC",
#endif
#ifdef SQLITE_DISABLE_LFS
  "DISABLE_LFS",
#endif
#ifdef SQLITE_ENABLE_ATOMIC_WRITE
  "ENABLE_ATOMIC_WRITE",
#endif
#ifdef SQLITE_ENABLE_CEROD
  "ENABLE_CEROD",
#endif
#ifdef SQLITE_ENABLE_COLUMN_METADATA
  "ENABLE_COLUMN_METADATA",
#endif
#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT
  "ENABLE_EXPENSIVE_ASSERT",
#endif
#ifdef SQLITE_ENABLE_FTS1
  "ENABLE_FTS1",
#endif
#ifdef SQLITE_ENABLE_FTS2
  "ENABLE_FTS2",
#endif
#ifdef SQLITE_ENABLE_FTS3
  "ENABLE_FTS3",
#endif
#ifdef SQLITE_ENABLE_FTS3_PARENTHESIS
  "ENABLE_FTS3_PARENTHESIS",
#endif
#ifdef SQLITE_ENABLE_FTS4
  "ENABLE_FTS4",
#endif
#ifdef SQLITE_ENABLE_ICU
  "ENABLE_ICU",
#endif
#ifdef SQLITE_ENABLE_IOTRACE
  "ENABLE_IOTRACE",
#endif
#ifdef SQLITE_ENABLE_LOAD_EXTENSION
  "ENABLE_LOAD_EXTENSION",
#endif
#ifdef SQLITE_ENABLE_LOCKING_STYLE
  "ENABLE_LOCKING_STYLE=" CTIMEOPT_VAL(SQLITE_ENABLE_LOCKING_STYLE),
#endif
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
  "ENABLE_MEMORY_MANAGEMENT",
#endif
#ifdef SQLITE_ENABLE_MEMSYS3
  "ENABLE_MEMSYS3",
#endif
#ifdef SQLITE_ENABLE_MEMSYS5
  "ENABLE_MEMSYS5",
#endif
#ifdef SQLITE_ENABLE_OVERSIZE_CELL_CHECK
  "ENABLE_OVERSIZE_CELL_CHECK",
#endif
#ifdef SQLITE_ENABLE_RTREE
  "ENABLE_RTREE",
#endif
#ifdef SQLITE_ENABLE_STAT2
  "ENABLE_STAT2",
#endif
#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
  "ENABLE_UNLOCK_NOTIFY",
#endif
#ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
  "ENABLE_UPDATE_DELETE_LIMIT",
#endif
#ifdef SQLITE_HAS_CODEC
  "HAS_CODEC",
#endif
#ifdef SQLITE_HAVE_ISNAN
  "HAVE_ISNAN",
#endif
#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
  "HOMEGROWN_RECURSIVE_MUTEX",
#endif
#ifdef SQLITE_IGNORE_AFP_LOCK_ERRORS
  "IGNORE_AFP_LOCK_ERRORS",
#endif
#ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS
  "IGNORE_FLOCK_LOCK_ERRORS",
#endif
#ifdef SQLITE_INT64_TYPE
  "INT64_TYPE",
#endif
#ifdef SQLITE_LOCK_TRACE
  "LOCK_TRACE",
#endif
#ifdef SQLITE_MEMDEBUG
  "MEMDEBUG",
#endif
#ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT
  "MIXED_ENDIAN_64BIT_FLOAT",
#endif
#ifdef SQLITE_NO_SYNC
  "NO_SYNC",
#endif
#ifdef SQLITE_OMIT_ALTERTABLE
  "OMIT_ALTERTABLE",
#endif
#ifdef SQLITE_OMIT_ANALYZE
  "OMIT_ANALYZE",
#endif
#ifdef SQLITE_OMIT_ATTACH
  "OMIT_ATTACH",
#endif
#ifdef SQLITE_OMIT_AUTHORIZATION
  "OMIT_AUTHORIZATION",
#endif
#ifdef SQLITE_OMIT_AUTOINCREMENT
  "OMIT_AUTOINCREMENT",
#endif
#ifdef SQLITE_OMIT_AUTOINIT
  "OMIT_AUTOINIT",
#endif
#ifdef SQLITE_OMIT_AUTOVACUUM
  "OMIT_AUTOVACUUM",
#endif
#ifdef SQLITE_OMIT_BETWEEN_OPTIMIZATION
  "OMIT_BETWEEN_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_BLOB_LITERAL
  "OMIT_BLOB_LITERAL",
#endif
#ifdef SQLITE_OMIT_BTREECOUNT
  "OMIT_BTREECOUNT",
#endif
#ifdef SQLITE_OMIT_BUILTIN_TEST
  "OMIT_BUILTIN_TEST",
#endif
#ifdef SQLITE_OMIT_CAST
  "OMIT_CAST",
#endif
#ifdef SQLITE_OMIT_CHECK
  "OMIT_CHECK",
#endif
#ifdef SQLITE_OMIT_COMPILEOPTION_DIAGS
  "OMIT_COMPILEOPTION_DIAGS",
#endif
#ifdef SQLITE_OMIT_COMPLETE
  "OMIT_COMPLETE",
#endif
#ifdef SQLITE_OMIT_COMPOUND_SELECT
  "OMIT_COMPOUND_SELECT",
#endif
#ifdef SQLITE_OMIT_DATETIME_FUNCS
  "OMIT_DATETIME_FUNCS",
#endif
#ifdef SQLITE_OMIT_DECLTYPE
  "OMIT_DECLTYPE",
#endif
#ifdef SQLITE_OMIT_DEPRECATED
  "OMIT_DEPRECATED",
#endif
#ifdef SQLITE_OMIT_DISKIO
  "OMIT_DISKIO",
#endif
#ifdef SQLITE_OMIT_EXPLAIN
  "OMIT_EXPLAIN",
#endif
#ifdef SQLITE_OMIT_FLAG_PRAGMAS
  "OMIT_FLAG_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_FLOATING_POINT
  "OMIT_FLOATING_POINT",
#endif
#ifdef SQLITE_OMIT_FOREIGN_KEY
  "OMIT_FOREIGN_KEY",
#endif
#ifdef SQLITE_OMIT_GET_TABLE
  "OMIT_GET_TABLE",
#endif
#ifdef SQLITE_OMIT_GLOBALRECOVER
  "OMIT_GLOBALRECOVER",
#endif
#ifdef SQLITE_OMIT_INCRBLOB
  "OMIT_INCRBLOB",
#endif
#ifdef SQLITE_OMIT_INTEGRITY_CHECK
  "OMIT_INTEGRITY_CHECK",
#endif
#ifdef SQLITE_OMIT_LIKE_OPTIMIZATION
  "OMIT_LIKE_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_LOAD_EXTENSION
  "OMIT_LOAD_EXTENSION",
#endif
#ifdef SQLITE_OMIT_LOCALTIME
  "OMIT_LOCALTIME",
#endif
#ifdef SQLITE_OMIT_LOOKASIDE
  "OMIT_LOOKASIDE",
#endif
#ifdef SQLITE_OMIT_MEMORYDB
  "OMIT_MEMORYDB",
#endif
#ifdef SQLITE_OMIT_OR_OPTIMIZATION
  "OMIT_OR_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_PAGER_PRAGMAS
  "OMIT_PAGER_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_PRAGMA
  "OMIT_PRAGMA",
#endif
#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
  "OMIT_PROGRESS_CALLBACK",
#endif
#ifdef SQLITE_OMIT_QUICKBALANCE
  "OMIT_QUICKBALANCE",
#endif
#ifdef SQLITE_OMIT_REINDEX
  "OMIT_REINDEX",
#endif
#ifdef SQLITE_OMIT_SCHEMA_PRAGMAS
  "OMIT_SCHEMA_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
  "OMIT_SCHEMA_VERSION_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_SHARED_CACHE
  "OMIT_SHARED_CACHE",
#endif
#ifdef SQLITE_OMIT_SUBQUERY
  "OMIT_SUBQUERY",
#endif
#ifdef SQLITE_OMIT_TCL_VARIABLE
  "OMIT_TCL_VARIABLE",
#endif
#ifdef SQLITE_OMIT_TEMPDB
  "OMIT_TEMPDB",
#endif
#ifdef SQLITE_OMIT_TRACE
  "OMIT_TRACE",
#endif
#ifdef SQLITE_OMIT_TRIGGER
  "OMIT_TRIGGER",
#endif
#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
  "OMIT_TRUNCATE_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_UTF16
  "OMIT_UTF16",
#endif
#ifdef SQLITE_OMIT_VACUUM
  "OMIT_VACUUM",
#endif
#ifdef SQLITE_OMIT_VIEW
  "OMIT_VIEW",
#endif
#ifdef SQLITE_OMIT_VIRTUALTABLE
  "OMIT_VIRTUALTABLE",
#endif
#ifdef SQLITE_OMIT_WSD
  "OMIT_WSD",
#endif
#ifdef SQLITE_OMIT_XFER_OPT
  "OMIT_XFER_OPT",
#endif
#ifdef SQLITE_PERFORMANCE_TRACE
  "PERFORMANCE_TRACE",
#endif
#ifdef SQLITE_PROXY_DEBUG
  "PROXY_DEBUG",
#endif
#ifdef SQLITE_SECURE_DELETE
  "SECURE_DELETE",
#endif
#ifdef SQLITE_SMALL_STACK
  "SMALL_STACK",
#endif
#ifdef SQLITE_SOUNDEX
  "SOUNDEX",
#endif
#ifdef SQLITE_TCL
  "TCL",
#endif
#ifdef SQLITE_TEMP_STORE
  "TEMP_STORE=" CTIMEOPT_VAL(SQLITE_TEMP_STORE),
#endif
#ifdef SQLITE_TEST
  "TEST",
#endif
#ifdef SQLITE_THREADSAFE
  "THREADSAFE=" CTIMEOPT_VAL(SQLITE_THREADSAFE),
#endif
#ifdef SQLITE_USE_ALLOCA
  "USE_ALLOCA",
#endif
#ifdef SQLITE_ZERO_MALLOC
  "ZERO_MALLOC"
#endif
};

/*
** Given the name of a compile-time option, return true if that option
** was used and false if not.
**
** The name can optionally begin with "SQLITE_" but the "SQLITE_" prefix
** is not required for a match.
*/
SQLITE_API int sqlite3_compileoption_used(const char *zOptName){
  int i, n;
  if( sqlite3StrNICmp(zOptName, "SQLITE_", 7)==0 ) zOptName += 7;
  n = sqlite3Strlen30(zOptName);

  /* Since ArraySize(azCompileOpt) is normally in single digits, a
  ** linear search is adequate.  No need for a binary search. */
  for(i=0; i<ArraySize(azCompileOpt); i++){
    if(   (sqlite3StrNICmp(zOptName, azCompileOpt[i], n)==0)
       && ( (azCompileOpt[i][n]==0) || (azCompileOpt[i][n]=='=') ) ) return 1;
  }
  return 0;
}

/*
** Return the N-th compile-time option string.  If N is out of range,
** return a NULL pointer.
*/
SQLITE_API const char *sqlite3_compileoption_get(int N){
  if( N>=0 && N<ArraySize(azCompileOpt) ){
    return azCompileOpt[N];
  }
  return 0;
}

#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

/************** End of ctime.c ***********************************************/
/************** Begin file delete.c ******************************************/
/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
................................................................................

  assert( ppStmt );
  *ppStmt = 0;
  if( !sqlite3SafetyCheckOk(db) ){
    return SQLITE_MISUSE_BKPT;
  }
  sqlite3_mutex_enter(db->mutex);
  zSql8 = sqlite3Utf16to8(db, zSql, nBytes);
  if( zSql8 ){
    rc = sqlite3LockAndPrepare(db, zSql8, -1, saveSqlFlag, 0, ppStmt, &zTail8);
  }

  if( zTail8 && pzTail ){
    /* If sqlite3_prepare returns a tail pointer, we calculate the
    ** equivalent pointer into the UTF-16 string by counting the unicode
................................................................................
  void (*xStep)(sqlite3_context*,int,sqlite3_value**),
  void (*xFinal)(sqlite3_context*)
){
  int rc;
  char *zFunc8;
  sqlite3_mutex_enter(db->mutex);
  assert( !db->mallocFailed );
  zFunc8 = sqlite3Utf16to8(db, zFunctionName, -1);
  rc = sqlite3CreateFunc(db, zFunc8, nArg, eTextRep, p, xFunc, xStep, xFinal);
  sqlite3DbFree(db, zFunc8);
  rc = sqlite3ApiExit(db, rc);
  sqlite3_mutex_leave(db->mutex);
  return rc;
}
#endif
................................................................................
  void* pCtx,
  int(*xCompare)(void*,int,const void*,int,const void*)
){
  int rc = SQLITE_OK;
  char *zName8;
  sqlite3_mutex_enter(db->mutex);
  assert( !db->mallocFailed );
  zName8 = sqlite3Utf16to8(db, zName, -1);
  if( zName8 ){
    rc = createCollation(db, zName8, (u8)enc, SQLITE_COLL_USER, pCtx, xCompare, 0);
    sqlite3DbFree(db, zName8);
  }
  rc = sqlite3ApiExit(db, rc);
  sqlite3_mutex_leave(db->mutex);
  return rc;
................................................................................
    fts3DbExec(&rc, db, 
        "CREATE TABLE %Q.'%q_stat'(id INTEGER PRIMARY KEY, value BLOB);",
        p->zDb, p->zName
    );
  }
  return rc;
}









/*
** Determine if a table currently exists in the database.
*/
static void fts3TableExists(
  int *pRc,             /* Success code */
  sqlite3 *db,          /* The database connection to test */
  const char *zDb,      /* ATTACHed database within the connection */
  const char *zName,    /* Name of the FTS3 table */
  const char *zSuffix,  /* Shadow table extension */
  u8 *pResult           /* Write results here */
){
  int rc = SQLITE_OK;


  if( *pRc ) return;


  fts3DbExec(&rc, db, "SELECT 1 FROM %Q.'%q%s'", zDb, zName, zSuffix);



  *pResult = (rc==SQLITE_OK) ? 1 : 0;
  if( rc!=SQLITE_ERROR ) *pRc = rc;
}

/*
** This function is the implementation of both the xConnect and xCreate
** methods of the FTS3 virtual table.
**
** The argv[] array contains the following:
................................................................................
  assert( iVal-*piPrev > 0 || (*piPrev==0 && iVal==0) );
  *pp += sqlite3Fts3PutVarint(*pp, iVal-*piPrev);
  *piPrev = iVal;
}

/*
** When this function is called, *ppPoslist is assumed to point to the 
** start of a position-list.





*/
static void fts3PoslistCopy(char **pp, char **ppPoslist){
  char *pEnd = *ppPoslist;
  char c = 0;

  /* The end of a position list is marked by a zero encoded as an FTS3 
  ** varint. A single 0x00 byte. Except, if the 0x00 byte is preceded by
................................................................................
    if( zQuery==0 && sqlite3_value_type(apVal[0])!=SQLITE_NULL ){
      return SQLITE_NOMEM;
    }

    rc = sqlite3Fts3ExprParse(p->pTokenizer, p->azColumn, p->nColumn, 
        iCol, zQuery, -1, &pCsr->pExpr
    );
    if( rc!=SQLITE_OK ) return rc;







    rc = evalFts3Expr(p, pCsr->pExpr, &pCsr->aDoclist, &pCsr->nDoclist, 0);
    pCsr->pNextId = pCsr->aDoclist;
    pCsr->iPrevId = 0;
  }

  if( rc!=SQLITE_OK ) return rc;
................................................................................
    char *pEnd = &pExpr->aDoclist[pExpr->nDoclist];
    char *pCsr = pExpr->pCurrent;

    assert( pCsr );
    while( pCsr<pEnd ){
      if( pExpr->iCurrent<iDocid ){
        fts3PoslistCopy(0, &pCsr);

        fts3GetDeltaVarint(&pCsr, &pExpr->iCurrent);

        pExpr->pCurrent = pCsr;
      }else{
        if( pExpr->iCurrent==iDocid ){
          int iThis = 0;
          if( iCol<0 ){
            /* If iCol is negative, return a pointer to the start of the
            ** position-list (instead of a pointer to the start of a list
................................................................................
/* 1  */  "SELECT NOT EXISTS(SELECT docid FROM %Q.'%q_content' WHERE rowid!=?)",
/* 2  */  "DELETE FROM %Q.'%q_content'",
/* 3  */  "DELETE FROM %Q.'%q_segments'",
/* 4  */  "DELETE FROM %Q.'%q_segdir'",
/* 5  */  "DELETE FROM %Q.'%q_docsize'",
/* 6  */  "DELETE FROM %Q.'%q_stat'",
/* 7  */  "SELECT * FROM %Q.'%q_content' WHERE rowid=?",
/* 8  */  "SELECT coalesce(max(idx)+1, 0) FROM %Q.'%q_segdir' WHERE level=?",
/* 9  */  "INSERT INTO %Q.'%q_segments'(blockid, block) VALUES(?, ?)",
/* 10 */  "SELECT coalesce(max(blockid)+1, 1) FROM %Q.'%q_segments'",
/* 11 */  "INSERT INTO %Q.'%q_segdir' VALUES(?,?,?,?,?,?)",

          /* Return segments in order from oldest to newest.*/ 
/* 12 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
            "FROM %Q.'%q_segdir' WHERE level = ? ORDER BY idx ASC",
/* 13 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
            "FROM %Q.'%q_segdir' ORDER BY level DESC, idx ASC",
................................................................................
        }
        if( rc==SQLITE_OK ){
          char aBuffer[64];
          sqlite3_snprintf(sizeof(aBuffer), aBuffer, 
              "%d %d %d %d ", iCol, pTerm-sCtx.aTerm, iStart, iEnd-iStart
          );
          rc = fts3StringAppend(&res, aBuffer, -1);


        }
      }
    }
    if( rc==SQLITE_DONE ){
      rc = SQLITE_CORRUPT;
    }

    pMod->xClose(pC);
    if( rc!=SQLITE_OK ) goto offsets_out;
  }

 offsets_out:


|







 







|

|







 







|







 







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/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version 3.6.23.1.  By combining all the individual C code files into this 
** single large file, the entire code can be compiled as a one translation
** unit.  This allows many compilers to do optimizations that would not be
** possible if the files were compiled separately.  Performance improvements
** of 5% are 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
................................................................................
** string contains the date and time of the check-in (UTC) and an SHA1
** hash of the entire source tree.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.6.23.1"
#define SQLITE_VERSION_NUMBER 3006023
#define SQLITE_SOURCE_ID      "2010-03-26 22:28:06 b078b588d617e07886ad156e9f54ade6d823568e"

/*
** 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
................................................................................

SQLITE_PRIVATE const void *sqlite3ValueText(sqlite3_value*, u8);
SQLITE_PRIVATE int sqlite3ValueBytes(sqlite3_value*, u8);
SQLITE_PRIVATE void sqlite3ValueSetStr(sqlite3_value*, int, const void *,u8, 
                        void(*)(void*));
SQLITE_PRIVATE void sqlite3ValueFree(sqlite3_value*);
SQLITE_PRIVATE sqlite3_value *sqlite3ValueNew(sqlite3 *);
SQLITE_PRIVATE char *sqlite3Utf16to8(sqlite3 *, const void*, int, u8);
#ifdef SQLITE_ENABLE_STAT2
SQLITE_PRIVATE char *sqlite3Utf8to16(sqlite3 *, u8, char *, int, int *);
#endif
SQLITE_PRIVATE int sqlite3ValueFromExpr(sqlite3 *, Expr *, u8, u8, sqlite3_value **);
SQLITE_PRIVATE void sqlite3ValueApplyAffinity(sqlite3_value *, u8, u8);
#ifndef SQLITE_AMALGAMATION
SQLITE_PRIVATE const unsigned char sqlite3OpcodeProperty[];
................................................................................
** created by mkopcodeh.awk during compilation.  Data is obtained
** from the comments following the "case OP_xxxx:" statements in
** the vdbe.c file.  
*/
SQLITE_PRIVATE const unsigned char sqlite3OpcodeProperty[] = OPFLG_INITIALIZER;

/************** End of global.c **********************************************/
/************** Begin file ctime.c *******************************************/
/*
** 2010 February 23
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    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 file implements routines used to report what compile-time options
** SQLite was built with.
*/

#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS


/*
** An array of names of all compile-time options.  This array should 
** be sorted A-Z.
**
** This array looks large, but in a typical installation actually uses
** only a handful of compile-time options, so most times this array is usually
** rather short and uses little memory space.
*/
static const char * const azCompileOpt[] = {

/* These macros are provided to "stringify" the value of the define
** for those options in which the value is meaningful. */
#define CTIMEOPT_VAL_(opt) #opt
#define CTIMEOPT_VAL(opt) CTIMEOPT_VAL_(opt)

#ifdef SQLITE_32BIT_ROWID
  "32BIT_ROWID",
#endif
#ifdef SQLITE_4_BYTE_ALIGNED_MALLOC
  "4_BYTE_ALIGNED_MALLOC",
#endif
#ifdef SQLITE_CASE_SENSITIVE_LIKE
  "CASE_SENSITIVE_LIKE",
#endif
#ifdef SQLITE_CHECK_PAGES
  "CHECK_PAGES",
#endif
#ifdef SQLITE_COVERAGE_TEST
  "COVERAGE_TEST",
#endif
#ifdef SQLITE_DEBUG
  "DEBUG",
#endif
#ifdef SQLITE_DEFAULT_LOCKING_MODE
  "DEFAULT_LOCKING_MODE=" CTIMEOPT_VAL(SQLITE_DEFAULT_LOCKING_MODE),
#endif
#ifdef SQLITE_DISABLE_DIRSYNC
  "DISABLE_DIRSYNC",
#endif
#ifdef SQLITE_DISABLE_LFS
  "DISABLE_LFS",
#endif
#ifdef SQLITE_ENABLE_ATOMIC_WRITE
  "ENABLE_ATOMIC_WRITE",
#endif
#ifdef SQLITE_ENABLE_CEROD
  "ENABLE_CEROD",
#endif
#ifdef SQLITE_ENABLE_COLUMN_METADATA
  "ENABLE_COLUMN_METADATA",
#endif
#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT
  "ENABLE_EXPENSIVE_ASSERT",
#endif
#ifdef SQLITE_ENABLE_FTS1
  "ENABLE_FTS1",
#endif
#ifdef SQLITE_ENABLE_FTS2
  "ENABLE_FTS2",
#endif
#ifdef SQLITE_ENABLE_FTS3
  "ENABLE_FTS3",
#endif
#ifdef SQLITE_ENABLE_FTS3_PARENTHESIS
  "ENABLE_FTS3_PARENTHESIS",
#endif
#ifdef SQLITE_ENABLE_FTS4
  "ENABLE_FTS4",
#endif
#ifdef SQLITE_ENABLE_ICU
  "ENABLE_ICU",
#endif
#ifdef SQLITE_ENABLE_IOTRACE
  "ENABLE_IOTRACE",
#endif
#ifdef SQLITE_ENABLE_LOAD_EXTENSION
  "ENABLE_LOAD_EXTENSION",
#endif
#ifdef SQLITE_ENABLE_LOCKING_STYLE
  "ENABLE_LOCKING_STYLE=" CTIMEOPT_VAL(SQLITE_ENABLE_LOCKING_STYLE),
#endif
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
  "ENABLE_MEMORY_MANAGEMENT",
#endif
#ifdef SQLITE_ENABLE_MEMSYS3
  "ENABLE_MEMSYS3",
#endif
#ifdef SQLITE_ENABLE_MEMSYS5
  "ENABLE_MEMSYS5",
#endif
#ifdef SQLITE_ENABLE_OVERSIZE_CELL_CHECK
  "ENABLE_OVERSIZE_CELL_CHECK",
#endif
#ifdef SQLITE_ENABLE_RTREE
  "ENABLE_RTREE",
#endif
#ifdef SQLITE_ENABLE_STAT2
  "ENABLE_STAT2",
#endif
#ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
  "ENABLE_UNLOCK_NOTIFY",
#endif
#ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
  "ENABLE_UPDATE_DELETE_LIMIT",
#endif
#ifdef SQLITE_HAS_CODEC
  "HAS_CODEC",
#endif
#ifdef SQLITE_HAVE_ISNAN
  "HAVE_ISNAN",
#endif
#ifdef SQLITE_HOMEGROWN_RECURSIVE_MUTEX
  "HOMEGROWN_RECURSIVE_MUTEX",
#endif
#ifdef SQLITE_IGNORE_AFP_LOCK_ERRORS
  "IGNORE_AFP_LOCK_ERRORS",
#endif
#ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS
  "IGNORE_FLOCK_LOCK_ERRORS",
#endif
#ifdef SQLITE_INT64_TYPE
  "INT64_TYPE",
#endif
#ifdef SQLITE_LOCK_TRACE
  "LOCK_TRACE",
#endif
#ifdef SQLITE_MEMDEBUG
  "MEMDEBUG",
#endif
#ifdef SQLITE_MIXED_ENDIAN_64BIT_FLOAT
  "MIXED_ENDIAN_64BIT_FLOAT",
#endif
#ifdef SQLITE_NO_SYNC
  "NO_SYNC",
#endif
#ifdef SQLITE_OMIT_ALTERTABLE
  "OMIT_ALTERTABLE",
#endif
#ifdef SQLITE_OMIT_ANALYZE
  "OMIT_ANALYZE",
#endif
#ifdef SQLITE_OMIT_ATTACH
  "OMIT_ATTACH",
#endif
#ifdef SQLITE_OMIT_AUTHORIZATION
  "OMIT_AUTHORIZATION",
#endif
#ifdef SQLITE_OMIT_AUTOINCREMENT
  "OMIT_AUTOINCREMENT",
#endif
#ifdef SQLITE_OMIT_AUTOINIT
  "OMIT_AUTOINIT",
#endif
#ifdef SQLITE_OMIT_AUTOVACUUM
  "OMIT_AUTOVACUUM",
#endif
#ifdef SQLITE_OMIT_BETWEEN_OPTIMIZATION
  "OMIT_BETWEEN_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_BLOB_LITERAL
  "OMIT_BLOB_LITERAL",
#endif
#ifdef SQLITE_OMIT_BTREECOUNT
  "OMIT_BTREECOUNT",
#endif
#ifdef SQLITE_OMIT_BUILTIN_TEST
  "OMIT_BUILTIN_TEST",
#endif
#ifdef SQLITE_OMIT_CAST
  "OMIT_CAST",
#endif
#ifdef SQLITE_OMIT_CHECK
  "OMIT_CHECK",
#endif
#ifdef SQLITE_OMIT_COMPILEOPTION_DIAGS
  "OMIT_COMPILEOPTION_DIAGS",
#endif
#ifdef SQLITE_OMIT_COMPLETE
  "OMIT_COMPLETE",
#endif
#ifdef SQLITE_OMIT_COMPOUND_SELECT
  "OMIT_COMPOUND_SELECT",
#endif
#ifdef SQLITE_OMIT_DATETIME_FUNCS
  "OMIT_DATETIME_FUNCS",
#endif
#ifdef SQLITE_OMIT_DECLTYPE
  "OMIT_DECLTYPE",
#endif
#ifdef SQLITE_OMIT_DEPRECATED
  "OMIT_DEPRECATED",
#endif
#ifdef SQLITE_OMIT_DISKIO
  "OMIT_DISKIO",
#endif
#ifdef SQLITE_OMIT_EXPLAIN
  "OMIT_EXPLAIN",
#endif
#ifdef SQLITE_OMIT_FLAG_PRAGMAS
  "OMIT_FLAG_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_FLOATING_POINT
  "OMIT_FLOATING_POINT",
#endif
#ifdef SQLITE_OMIT_FOREIGN_KEY
  "OMIT_FOREIGN_KEY",
#endif
#ifdef SQLITE_OMIT_GET_TABLE
  "OMIT_GET_TABLE",
#endif
#ifdef SQLITE_OMIT_GLOBALRECOVER
  "OMIT_GLOBALRECOVER",
#endif
#ifdef SQLITE_OMIT_INCRBLOB
  "OMIT_INCRBLOB",
#endif
#ifdef SQLITE_OMIT_INTEGRITY_CHECK
  "OMIT_INTEGRITY_CHECK",
#endif
#ifdef SQLITE_OMIT_LIKE_OPTIMIZATION
  "OMIT_LIKE_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_LOAD_EXTENSION
  "OMIT_LOAD_EXTENSION",
#endif
#ifdef SQLITE_OMIT_LOCALTIME
  "OMIT_LOCALTIME",
#endif
#ifdef SQLITE_OMIT_LOOKASIDE
  "OMIT_LOOKASIDE",
#endif
#ifdef SQLITE_OMIT_MEMORYDB
  "OMIT_MEMORYDB",
#endif
#ifdef SQLITE_OMIT_OR_OPTIMIZATION
  "OMIT_OR_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_PAGER_PRAGMAS
  "OMIT_PAGER_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_PRAGMA
  "OMIT_PRAGMA",
#endif
#ifdef SQLITE_OMIT_PROGRESS_CALLBACK
  "OMIT_PROGRESS_CALLBACK",
#endif
#ifdef SQLITE_OMIT_QUICKBALANCE
  "OMIT_QUICKBALANCE",
#endif
#ifdef SQLITE_OMIT_REINDEX
  "OMIT_REINDEX",
#endif
#ifdef SQLITE_OMIT_SCHEMA_PRAGMAS
  "OMIT_SCHEMA_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS
  "OMIT_SCHEMA_VERSION_PRAGMAS",
#endif
#ifdef SQLITE_OMIT_SHARED_CACHE
  "OMIT_SHARED_CACHE",
#endif
#ifdef SQLITE_OMIT_SUBQUERY
  "OMIT_SUBQUERY",
#endif
#ifdef SQLITE_OMIT_TCL_VARIABLE
  "OMIT_TCL_VARIABLE",
#endif
#ifdef SQLITE_OMIT_TEMPDB
  "OMIT_TEMPDB",
#endif
#ifdef SQLITE_OMIT_TRACE
  "OMIT_TRACE",
#endif
#ifdef SQLITE_OMIT_TRIGGER
  "OMIT_TRIGGER",
#endif
#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
  "OMIT_TRUNCATE_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_UTF16
  "OMIT_UTF16",
#endif
#ifdef SQLITE_OMIT_VACUUM
  "OMIT_VACUUM",
#endif
#ifdef SQLITE_OMIT_VIEW
  "OMIT_VIEW",
#endif
#ifdef SQLITE_OMIT_VIRTUALTABLE
  "OMIT_VIRTUALTABLE",
#endif
#ifdef SQLITE_OMIT_WSD
  "OMIT_WSD",
#endif
#ifdef SQLITE_OMIT_XFER_OPT
  "OMIT_XFER_OPT",
#endif
#ifdef SQLITE_PERFORMANCE_TRACE
  "PERFORMANCE_TRACE",
#endif
#ifdef SQLITE_PROXY_DEBUG
  "PROXY_DEBUG",
#endif
#ifdef SQLITE_SECURE_DELETE
  "SECURE_DELETE",
#endif
#ifdef SQLITE_SMALL_STACK
  "SMALL_STACK",
#endif
#ifdef SQLITE_SOUNDEX
  "SOUNDEX",
#endif
#ifdef SQLITE_TCL
  "TCL",
#endif
#ifdef SQLITE_TEMP_STORE
  "TEMP_STORE=" CTIMEOPT_VAL(SQLITE_TEMP_STORE),
#endif
#ifdef SQLITE_TEST
  "TEST",
#endif
#ifdef SQLITE_THREADSAFE
  "THREADSAFE=" CTIMEOPT_VAL(SQLITE_THREADSAFE),
#endif
#ifdef SQLITE_USE_ALLOCA
  "USE_ALLOCA",
#endif
#ifdef SQLITE_ZERO_MALLOC
  "ZERO_MALLOC"
#endif
};

/*
** Given the name of a compile-time option, return true if that option
** was used and false if not.
**
** The name can optionally begin with "SQLITE_" but the "SQLITE_" prefix
** is not required for a match.
*/
SQLITE_API int sqlite3_compileoption_used(const char *zOptName){
  int i, n;
  if( sqlite3StrNICmp(zOptName, "SQLITE_", 7)==0 ) zOptName += 7;
  n = sqlite3Strlen30(zOptName);

  /* Since ArraySize(azCompileOpt) is normally in single digits, a
  ** linear search is adequate.  No need for a binary search. */
  for(i=0; i<ArraySize(azCompileOpt); i++){
    if(   (sqlite3StrNICmp(zOptName, azCompileOpt[i], n)==0)
       && ( (azCompileOpt[i][n]==0) || (azCompileOpt[i][n]=='=') ) ) return 1;
  }
  return 0;
}

/*
** Return the N-th compile-time option string.  If N is out of range,
** return a NULL pointer.
*/
SQLITE_API const char *sqlite3_compileoption_get(int N){
  if( N>=0 && N<ArraySize(azCompileOpt) ){
    return azCompileOpt[N];
  }
  return 0;
}

#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

/************** End of ctime.c ***********************************************/
/************** Begin file status.c ******************************************/
/*
** 2008 June 18
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
................................................................................
/*
** Free memory.
*/
static void sqlite3MemFree(void *pPrior){
  struct MemBlockHdr *pHdr;
  void **pBt;
  char *z;
  assert( sqlite3GlobalConfig.bMemstat || sqlite3GlobalConfig.bCoreMutex==0 
       || mem.mutex!=0 );
  pHdr = sqlite3MemsysGetHeader(pPrior);
  pBt = (void**)pHdr;
  pBt -= pHdr->nBacktraceSlots;
  sqlite3_mutex_enter(mem.mutex);
  if( pHdr->pPrev ){
    assert( pHdr->pPrev->pNext==pHdr );
    pHdr->pPrev->pNext = pHdr->pNext;
................................................................................
#ifdef SQLITE_DEBUG
  if( p->trace ){
    printf("enter mutex %p (%d) with nRef=%d\n", p, p->trace, p->nRef);
  }
#endif
}
static int winMutexTry(sqlite3_mutex *p){
#ifndef NDEBUG
  DWORD tid = GetCurrentThreadId(); 
#endif
  int rc = SQLITE_BUSY;
  assert( p->id==SQLITE_MUTEX_RECURSIVE || winMutexNotheld2(p, tid) );
  /*
  ** The sqlite3_mutex_try() routine is very rarely used, and when it
  ** is used it is merely an optimization.  So it is OK for it to always
  ** fail.  
  **
................................................................................
/*
** The sqlite3_mutex_leave() routine exits a mutex that was
** previously entered by the same thread.  The behavior
** is undefined if the mutex is not currently entered or
** is not currently allocated.  SQLite will never do either.
*/
static void winMutexLeave(sqlite3_mutex *p){
#ifndef NDEBUG
  DWORD tid = GetCurrentThreadId();
#endif
  assert( p->nRef>0 );
  assert( p->owner==tid );
  p->nRef--;
  assert( p->nRef==0 || p->id==SQLITE_MUTEX_RECURSIVE );
  LeaveCriticalSection(&p->mutex);
#ifdef SQLITE_DEBUG
  if( p->trace ){
................................................................................
/*
** Convert a UTF-16 string in the native encoding into a UTF-8 string.
** Memory to hold the UTF-8 string is obtained from sqlite3_malloc and must
** be freed by the calling function.
**
** NULL is returned if there is an allocation error.
*/
SQLITE_PRIVATE char *sqlite3Utf16to8(sqlite3 *db, const void *z, int nByte, u8 enc){
  Mem m;
  memset(&m, 0, sizeof(m));
  m.db = db;
  sqlite3VdbeMemSetStr(&m, z, nByte, enc, SQLITE_STATIC);
  sqlite3VdbeChangeEncoding(&m, SQLITE_UTF8);
  if( db->mallocFailed ){
    sqlite3VdbeMemRelease(&m);
    m.z = 0;
  }
  assert( (m.flags & MEM_Term)!=0 || db->mallocFailed );
  assert( (m.flags & MEM_Str)!=0 || db->mallocFailed );
  assert( (m.flags & MEM_Dyn)!=0 || db->mallocFailed );
  assert( m.z || db->mallocFailed );
  return m.z;
}

/*
** Convert a UTF-8 string to the UTF-16 encoding specified by parameter
** enc. A pointer to the new string is returned, and the value of *pnOut
** is set to the length of the returned string in bytes. The call should
** arrange to call sqlite3DbFree() on the returned pointer when it is
................................................................................
    a |= b;
    *v = a;
    return 2;
  }

  /* Verify that constants are precomputed correctly */
  assert( SLOT_2_0 == ((0x7f<<14) | (0x7f)) );
  assert( SLOT_4_2_0 == ((0xfU<<28) | (0x7f<<14) | (0x7f)) );

  p++;
  a = a<<14;
  a |= *p;
  /* a: p0<<14 | p2 (unmasked) */
  if (!(a&0x80))
  {
................................................................................
  pPager->changeCountDone = pPager->tempFile;

  if( rc==SQLITE_OK ){
    zMaster = pPager->pTmpSpace;
    rc = readMasterJournal(pPager->jfd, zMaster, pPager->pVfs->mxPathname+1);
    testcase( rc!=SQLITE_OK );
  }
  if( rc==SQLITE_OK && pPager->noSync==0 && pPager->state>=PAGER_EXCLUSIVE ){
    rc = sqlite3OsSync(pPager->fd, pPager->sync_flags);
  }
  if( rc==SQLITE_OK ){
    rc = pager_end_transaction(pPager, zMaster[0]!='\0');
    testcase( rc!=SQLITE_OK );
  }
  if( rc==SQLITE_OK && zMaster[0] && res ){
    /* If there was a master journal and this routine will return success,
    ** see if it is possible to delete the master journal.
................................................................................
  }else if( memDb ){
    pPager->journalMode = PAGER_JOURNALMODE_MEMORY;
  }
  /* pPager->xBusyHandler = 0; */
  /* pPager->pBusyHandlerArg = 0; */
  pPager->xReiniter = xReinit;
  /* memset(pPager->aHash, 0, sizeof(pPager->aHash)); */

  *ppPager = pPager;
  return SQLITE_OK;
}



/*
................................................................................
  }
  iOffset = (pgno-1)*(i64)pPager->pageSize;
  rc = sqlite3OsRead(pPager->fd, pPg->pData, pPager->pageSize, iOffset);
  if( rc==SQLITE_IOERR_SHORT_READ ){
    rc = SQLITE_OK;
  }
  if( pgno==1 ){
    if( rc ){
      /* If the read is unsuccessful, set the dbFileVers[] to something
      ** that will never be a valid file version.  dbFileVers[] is a copy
      ** of bytes 24..39 of the database.  Bytes 28..31 should always be
      ** zero.  Bytes 32..35 and 35..39 should be page numbers which are
      ** never 0xffffffff.  So filling pPager->dbFileVers[] with all 0xff
      ** bytes should suffice.
      **
      ** For an encrypted database, the situation is more complex:  bytes
      ** 24..39 of the database are white noise.  But the probability of
      ** white noising equaling 16 bytes of 0xff is vanishingly small so
      ** we should still be ok.
      */
      memset(pPager->dbFileVers, 0xff, sizeof(pPager->dbFileVers));
    }else{
      u8 *dbFileVers = &((u8*)pPg->pData)[24];
      memcpy(&pPager->dbFileVers, dbFileVers, sizeof(pPager->dbFileVers));
    }
  }
  CODEC1(pPager, pPg->pData, pgno, 3, rc = SQLITE_NOMEM);

  PAGER_INCR(sqlite3_pager_readdb_count);
  PAGER_INCR(pPager->nRead);
  IOTRACE(("PGIN %p %d\n", pPager, pgno));
  PAGERTRACE(("FETCH %d page %d hash(%08x)\n",
................................................................................
    /* If this is a release of the outermost savepoint, truncate 
    ** the sub-journal to zero bytes in size. */
    if( op==SAVEPOINT_RELEASE ){
      if( nNew==0 && isOpen(pPager->sjfd) ){
        /* Only truncate if it is an in-memory sub-journal. */
        if( sqlite3IsMemJournal(pPager->sjfd) ){
          rc = sqlite3OsTruncate(pPager->sjfd, 0);
          assert( rc==SQLITE_OK );
        }
        pPager->nSubRec = 0;
      }
    }
    /* Else this is a rollback operation, playback the specified savepoint.
    ** If this is a temp-file, it is possible that the journal file has
    ** not yet been opened. In this case there have been no changes to
................................................................................
      return SQLITE_CORRUPT_BKPT;
    }
    if( nOvfl ){
      rc = getOverflowPage(pBt, ovflPgno, &pOvfl, &iNext);
      if( rc ) return rc;
    }

    if( ( pOvfl || ((pOvfl = btreePageLookup(pBt, ovflPgno))!=0) )
     && sqlite3PagerPageRefcount(pOvfl->pDbPage)!=1
    ){
      /* There is no reason any cursor should have an outstanding reference 
      ** to an overflow page belonging to a cell that is being deleted/updated.
      ** So if there exists more than one reference to this page, then it 
      ** must not really be an overflow page and the database must be corrupt. 
      ** It is helpful to detect this before calling freePage2(), as 
................................................................................
      **
      ** Unless SQLite is compiled in secure-delete mode. In this case,
      ** the dropCell() routine will overwrite the entire cell with zeroes.
      ** In this case, temporarily copy the cell into the aOvflSpace[]
      ** buffer. It will be copied out again as soon as the aSpace[] buffer
      ** is allocated.  */
      if( pBt->secureDelete ){
        int iOff = SQLITE_PTR_TO_INT(apDiv[i]) - SQLITE_PTR_TO_INT(pParent->aData);
        if( (iOff+szNew[i])>pBt->usableSize ){
          rc = SQLITE_CORRUPT_BKPT;
          memset(apOld, 0, (i+1)*sizeof(MemPage*));
          goto balance_cleanup;
        }else{
          memcpy(&aOvflSpace[iOff], apDiv[i], szNew[i]);
          apDiv[i] = &aOvflSpace[apDiv[i]-pParent->aData];
................................................................................
** and flags gets srcType (either MEM_Ephem or MEM_Static).
*/
SQLITE_PRIVATE void sqlite3VdbeMemShallowCopy(Mem *pTo, const Mem *pFrom, int srcType){
  assert( (pFrom->flags & MEM_RowSet)==0 );
  sqlite3VdbeMemReleaseExternal(pTo);
  memcpy(pTo, pFrom, MEMCELLSIZE);
  pTo->xDel = 0;
  if( (pFrom->flags&MEM_Static)==0 ){
    pTo->flags &= ~(MEM_Dyn|MEM_Static|MEM_Ephem);
    assert( srcType==MEM_Ephem || srcType==MEM_Static );
    pTo->flags |= srcType;
  }
}

/*
................................................................................
        db->autoCommit = 1;
      }
    }
  
    /* If eStatementOp is non-zero, then a statement transaction needs to
    ** be committed or rolled back. Call sqlite3VdbeCloseStatement() to
    ** do so. If this operation returns an error, and the current statement
    ** error code is SQLITE_OK or SQLITE_CONSTRAINT, then promote the
    ** current statement error code.
    **
    ** Note that sqlite3VdbeCloseStatement() can only fail if eStatementOp
    ** is SAVEPOINT_ROLLBACK.  But if p->rc==SQLITE_OK then eStatementOp
    ** must be SAVEPOINT_RELEASE.  Hence the NEVER(p->rc==SQLITE_OK) in 
    ** the following code.
    */
    if( eStatementOp ){
      rc = sqlite3VdbeCloseStatement(p, eStatementOp);
      if( rc && (NEVER(p->rc==SQLITE_OK) || p->rc==SQLITE_CONSTRAINT) ){
        p->rc = rc;
        sqlite3DbFree(db, p->zErrMsg);
        p->zErrMsg = 0;
      }
    }
  
    /* If this was an INSERT, UPDATE or DELETE and no statement transaction
................................................................................
** do so without loss of information.  In other words, if the string
** looks like a number, convert it into a number.  If it does not
** look like a number, leave it alone.
*/
static void applyNumericAffinity(Mem *pRec){
  if( (pRec->flags & (MEM_Real|MEM_Int))==0 ){
    int realnum;
    u8 enc = pRec->enc;
    sqlite3VdbeMemNulTerminate(pRec);

    if( (pRec->flags&MEM_Str) && sqlite3IsNumber(pRec->z, &realnum, enc) ){
      i64 value;
      char *zUtf8 = pRec->z;
#ifndef SQLITE_OMIT_UTF16
      if( enc!=SQLITE_UTF8 ){
        assert( pRec->db );
        zUtf8 = sqlite3Utf16to8(pRec->db, pRec->z, pRec->n, enc);
        if( !zUtf8 ) return;
      }
#endif
      if( !realnum && sqlite3Atoi64(zUtf8, &value) ){
        pRec->u.i = value;
        MemSetTypeFlag(pRec, MEM_Int);
      }else{
        sqlite3AtoF(zUtf8, &pRec->r);
        MemSetTypeFlag(pRec, MEM_Real);
      }
#ifndef SQLITE_OMIT_UTF16
      if( enc!=SQLITE_UTF8 ){
        sqlite3DbFree(pRec->db, zUtf8);
      }
#endif
    }
  }
}

/*
** Processing is determine by the affinity parameter:
**
................................................................................
    struct OP_ShiftRight_stack_vars {
      i64 a;
      i64 b;
    } ah;
    struct OP_Ge_stack_vars {
      int res;            /* Result of the comparison of pIn1 against pIn3 */
      char affinity;      /* Affinity to use for comparison */
      u16 flags1;         /* Copy of initial value of pIn1->flags */
      u16 flags3;         /* Copy of initial value of pIn3->flags */
    } ai;
    struct OP_Compare_stack_vars {
      int n;
      int i;
      int p1;
      int p2;
      const KeyInfo *pKeyInfo;
................................................................................
case OP_Lt:               /* same as TK_LT, jump, in1, in3 */
case OP_Le:               /* same as TK_LE, jump, in1, in3 */
case OP_Gt:               /* same as TK_GT, jump, in1, in3 */
case OP_Ge: {             /* same as TK_GE, jump, in1, in3 */
#if 0  /* local variables moved into u.ai */
  int res;            /* Result of the comparison of pIn1 against pIn3 */
  char affinity;      /* Affinity to use for comparison */
  u16 flags1;         /* Copy of initial value of pIn1->flags */
  u16 flags3;         /* Copy of initial value of pIn3->flags */
#endif /* local variables moved into u.ai */

  pIn1 = &aMem[pOp->p1];
  pIn3 = &aMem[pOp->p3];
  u.ai.flags1 = pIn1->flags;
  u.ai.flags3 = pIn3->flags;
  if( (pIn1->flags | pIn3->flags)&MEM_Null ){
    /* One or both operands are NULL */
    if( pOp->p5 & SQLITE_NULLEQ ){
      /* If SQLITE_NULLEQ is set (which will only happen if the operator is
      ** OP_Eq or OP_Ne) then take the jump or not depending on whether
      ** or not both operands are null.
      */
................................................................................
    pOut = &aMem[pOp->p2];
    MemSetTypeFlag(pOut, MEM_Int);
    pOut->u.i = u.ai.res;
    REGISTER_TRACE(pOp->p2, pOut);
  }else if( u.ai.res ){
    pc = pOp->p2-1;
  }

  /* Undo any changes made by applyAffinity() to the input registers. */
  pIn1->flags = (pIn1->flags&~MEM_TypeMask) | (u.ai.flags1&MEM_TypeMask);
  pIn3->flags = (pIn3->flags&~MEM_TypeMask) | (u.ai.flags3&MEM_TypeMask);
  break;
}

/* Opcode: Permutation * * * P4 *
**
** Set the permutation used by the OP_Compare operator to be the array
** of integers in P4.
................................................................................
  CollSeq *p4;

  p4 = sqlite3BinaryCompareCollSeq(pParse, pLeft, pRight);
  p5 = binaryCompareP5(pLeft, pRight, jumpIfNull);
  addr = sqlite3VdbeAddOp4(pParse->pVdbe, opcode, in2, dest, in1,
                           (void*)p4, P4_COLLSEQ);
  sqlite3VdbeChangeP5(pParse->pVdbe, (u8)p5);




  return addr;
}

#if SQLITE_MAX_EXPR_DEPTH>0
/*
** Check that argument nHeight is less than or equal to the maximum
** expression depth allowed. If it is not, leave an error message in
................................................................................
    sqlite3HashInit(&p->fkeyHash);
    p->enc = SQLITE_UTF8;
  }
  return p;
}

/************** End of callback.c ********************************************/



































































































































































































































































































































































































/************** Begin file delete.c ******************************************/
/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
................................................................................

  assert( ppStmt );
  *ppStmt = 0;
  if( !sqlite3SafetyCheckOk(db) ){
    return SQLITE_MISUSE_BKPT;
  }
  sqlite3_mutex_enter(db->mutex);
  zSql8 = sqlite3Utf16to8(db, zSql, nBytes, SQLITE_UTF16NATIVE);
  if( zSql8 ){
    rc = sqlite3LockAndPrepare(db, zSql8, -1, saveSqlFlag, 0, ppStmt, &zTail8);
  }

  if( zTail8 && pzTail ){
    /* If sqlite3_prepare returns a tail pointer, we calculate the
    ** equivalent pointer into the UTF-16 string by counting the unicode
................................................................................
  void (*xStep)(sqlite3_context*,int,sqlite3_value**),
  void (*xFinal)(sqlite3_context*)
){
  int rc;
  char *zFunc8;
  sqlite3_mutex_enter(db->mutex);
  assert( !db->mallocFailed );
  zFunc8 = sqlite3Utf16to8(db, zFunctionName, -1, SQLITE_UTF16NATIVE);
  rc = sqlite3CreateFunc(db, zFunc8, nArg, eTextRep, p, xFunc, xStep, xFinal);
  sqlite3DbFree(db, zFunc8);
  rc = sqlite3ApiExit(db, rc);
  sqlite3_mutex_leave(db->mutex);
  return rc;
}
#endif
................................................................................
  void* pCtx,
  int(*xCompare)(void*,int,const void*,int,const void*)
){
  int rc = SQLITE_OK;
  char *zName8;
  sqlite3_mutex_enter(db->mutex);
  assert( !db->mallocFailed );
  zName8 = sqlite3Utf16to8(db, zName, -1, SQLITE_UTF16NATIVE);
  if( zName8 ){
    rc = createCollation(db, zName8, (u8)enc, SQLITE_COLL_USER, pCtx, xCompare, 0);
    sqlite3DbFree(db, zName8);
  }
  rc = sqlite3ApiExit(db, rc);
  sqlite3_mutex_leave(db->mutex);
  return rc;
................................................................................
    fts3DbExec(&rc, db, 
        "CREATE TABLE %Q.'%q_stat'(id INTEGER PRIMARY KEY, value BLOB);",
        p->zDb, p->zName
    );
  }
  return rc;
}

/*
** An sqlite3_exec() callback for fts3TableExists.
*/
static int fts3TableExistsCallback(void *pArg, int n, char **pp1, char **pp2){
  *(int*)pArg = 1;
  return 1;
}

/*
** Determine if a table currently exists in the database.
*/
static void fts3TableExists(
  int *pRc,             /* Success code */
  sqlite3 *db,          /* The database connection to test */
  const char *zDb,      /* ATTACHed database within the connection */
  const char *zName,    /* Name of the FTS3 table */
  const char *zSuffix,  /* Shadow table extension */
  u8 *pResult           /* Write results here */
){
  int rc = SQLITE_OK;
  int res = 0;
  char *zSql;
  if( *pRc ) return;
  zSql = sqlite3_mprintf(
    "SELECT 1 FROM %Q.sqlite_master WHERE name='%q%s'",
    zDb, zName, zSuffix
  );    
  rc = sqlite3_exec(db, zSql, fts3TableExistsCallback, &res, 0);
  sqlite3_free(zSql);
  *pResult = res & 0xff;
  if( rc!=SQLITE_ABORT ) *pRc = rc;
}

/*
** This function is the implementation of both the xConnect and xCreate
** methods of the FTS3 virtual table.
**
** The argv[] array contains the following:
................................................................................
  assert( iVal-*piPrev > 0 || (*piPrev==0 && iVal==0) );
  *pp += sqlite3Fts3PutVarint(*pp, iVal-*piPrev);
  *piPrev = iVal;
}

/*
** When this function is called, *ppPoslist is assumed to point to the 
** start of a position-list. After it returns, *ppPoslist points to the
** first byte after the position-list.
**
** If pp is not NULL, then the contents of the position list are copied
** to *pp. *pp is set to point to the first byte past the last byte copied
** before this function returns.
*/
static void fts3PoslistCopy(char **pp, char **ppPoslist){
  char *pEnd = *ppPoslist;
  char c = 0;

  /* The end of a position list is marked by a zero encoded as an FTS3 
  ** varint. A single 0x00 byte. Except, if the 0x00 byte is preceded by
................................................................................
    if( zQuery==0 && sqlite3_value_type(apVal[0])!=SQLITE_NULL ){
      return SQLITE_NOMEM;
    }

    rc = sqlite3Fts3ExprParse(p->pTokenizer, p->azColumn, p->nColumn, 
        iCol, zQuery, -1, &pCsr->pExpr
    );
    if( rc!=SQLITE_OK ){
      if( rc==SQLITE_ERROR ){
        p->base.zErrMsg = sqlite3_mprintf("malformed MATCH expression: [%s]",
                                          zQuery);
      }
      return rc;
    }

    rc = evalFts3Expr(p, pCsr->pExpr, &pCsr->aDoclist, &pCsr->nDoclist, 0);
    pCsr->pNextId = pCsr->aDoclist;
    pCsr->iPrevId = 0;
  }

  if( rc!=SQLITE_OK ) return rc;
................................................................................
    char *pEnd = &pExpr->aDoclist[pExpr->nDoclist];
    char *pCsr = pExpr->pCurrent;

    assert( pCsr );
    while( pCsr<pEnd ){
      if( pExpr->iCurrent<iDocid ){
        fts3PoslistCopy(0, &pCsr);
        if( pCsr<pEnd ){
          fts3GetDeltaVarint(&pCsr, &pExpr->iCurrent);
        }
        pExpr->pCurrent = pCsr;
      }else{
        if( pExpr->iCurrent==iDocid ){
          int iThis = 0;
          if( iCol<0 ){
            /* If iCol is negative, return a pointer to the start of the
            ** position-list (instead of a pointer to the start of a list
................................................................................
/* 1  */  "SELECT NOT EXISTS(SELECT docid FROM %Q.'%q_content' WHERE rowid!=?)",
/* 2  */  "DELETE FROM %Q.'%q_content'",
/* 3  */  "DELETE FROM %Q.'%q_segments'",
/* 4  */  "DELETE FROM %Q.'%q_segdir'",
/* 5  */  "DELETE FROM %Q.'%q_docsize'",
/* 6  */  "DELETE FROM %Q.'%q_stat'",
/* 7  */  "SELECT * FROM %Q.'%q_content' WHERE rowid=?",
/* 8  */  "SELECT (SELECT max(idx) FROM %Q.'%q_segdir' WHERE level = ?) + 1",
/* 9  */  "INSERT INTO %Q.'%q_segments'(blockid, block) VALUES(?, ?)",
/* 10 */  "SELECT coalesce((SELECT max(blockid) FROM %Q.'%q_segments') + 1, 1)",
/* 11 */  "INSERT INTO %Q.'%q_segdir' VALUES(?,?,?,?,?,?)",

          /* Return segments in order from oldest to newest.*/ 
/* 12 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
            "FROM %Q.'%q_segdir' WHERE level = ? ORDER BY idx ASC",
/* 13 */  "SELECT idx, start_block, leaves_end_block, end_block, root "
            "FROM %Q.'%q_segdir' ORDER BY level DESC, idx ASC",
................................................................................
        }
        if( rc==SQLITE_OK ){
          char aBuffer[64];
          sqlite3_snprintf(sizeof(aBuffer), aBuffer, 
              "%d %d %d %d ", iCol, pTerm-sCtx.aTerm, iStart, iEnd-iStart
          );
          rc = fts3StringAppend(&res, aBuffer, -1);
        }else if( rc==SQLITE_DONE ){
          rc = SQLITE_CORRUPT;
        }
      }
    }
    if( rc==SQLITE_DONE ){
      rc = SQLITE_OK;
    }

    pMod->xClose(pC);
    if( rc!=SQLITE_OK ) goto offsets_out;
  }

 offsets_out:

Changes to src/sqlite3.h.

103
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** string contains the date and time of the check-in (UTC) and an SHA1
** hash of the entire source tree.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.6.23"
#define SQLITE_VERSION_NUMBER 3006023
#define SQLITE_SOURCE_ID      "2010-03-05 13:53:23 27413fc8dd52b754b4be9344a66bb9e0d752d48e"

/*
** 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







|

|







103
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107
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109
110
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** string contains the date and time of the check-in (UTC) and an SHA1
** hash of the entire source tree.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.6.23.1"
#define SQLITE_VERSION_NUMBER 3006023
#define SQLITE_SOURCE_ID      "2010-03-26 22:28:06 b078b588d617e07886ad156e9f54ade6d823568e"

/*
** 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