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Overview
Comment:Merge the pragma-as-vtab enhancement from trunk.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | est_count_pragma
Files: files | file ages | folders
SHA1: 89250777b253f90f133d41f5387671429a562c07
User & Date: drh 2016-12-16 21:15:04.542
Context
2017-01-27
16:24
Merge all recent enhancements from trunk. (check-in: fe86ff5429 user: drh tags: est_count_pragma)
2016-12-16
21:15
Merge the pragma-as-vtab enhancement from trunk. (check-in: 89250777b2 user: drh tags: est_count_pragma)
21:02
Fix a potential memory leak following an OOM error in the pragma processing. (check-in: 396ab8f87e user: drh tags: est_count_pragma)
18:43
Add the ".lint fkey-indexes" command to the command-line shell. (check-in: 94689e3bda user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/build.c.
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        p = sqlite3HashFind(&db->aDb[j].pSchema->tblHash, zName);
        if( p ) return p;
      }
    }
    /* Not found.  If the name we were looking for was temp.sqlite_master
    ** then change the name to sqlite_temp_master and try again. */
    if( sqlite3StrICmp(zName, MASTER_NAME)!=0 ) break;
    if( zDatabase==0 ) break;
    if( sqlite3StrICmp(zDatabase, db->aDb[1].zDbSName)!=0 ) break;
    zName = TEMP_MASTER_NAME;
  }
  return 0;
}

/*
** Locate the in-memory structure that describes a particular database







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        p = sqlite3HashFind(&db->aDb[j].pSchema->tblHash, zName);
        if( p ) return p;
      }
    }
    /* Not found.  If the name we were looking for was temp.sqlite_master
    ** then change the name to sqlite_temp_master and try again. */
    if( sqlite3StrICmp(zName, MASTER_NAME)!=0 ) break;

    if( sqlite3_stricmp(zDatabase, db->aDb[1].zDbSName)!=0 ) break;
    zName = TEMP_MASTER_NAME;
  }
  return 0;
}

/*
** Locate the in-memory structure that describes a particular database
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    const char *zMsg = flags & LOCATE_VIEW ? "no such view" : "no such table";
#ifndef SQLITE_OMIT_VIRTUALTABLE
    if( sqlite3FindDbName(pParse->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(&pParse->db->aModule, zName);



      if( pMod && sqlite3VtabEponymousTableInit(pParse, pMod) ){
        return pMod->pEpoTab;
      }
    }
#endif
    if( (flags & LOCATE_NOERR)==0 ){
      if( zDbase ){







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    const char *zMsg = flags & LOCATE_VIEW ? "no such view" : "no such table";
#ifndef SQLITE_OMIT_VIRTUALTABLE
    if( sqlite3FindDbName(pParse->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(&pParse->db->aModule, zName);
      if( pMod==0 && sqlite3_strnicmp(zName, "pragma_", 7)==0 ){
        pMod = sqlite3PragmaVtabRegister(pParse->db, zName);
      }
      if( pMod && sqlite3VtabEponymousTableInit(pParse, pMod) ){
        return pMod->pEpoTab;
      }
    }
#endif
    if( (flags & LOCATE_NOERR)==0 ){
      if( zDbase ){
Changes to src/pragma.c.
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  }
  db->temp_store = (u8)ts;
  return SQLITE_OK;
}
#endif /* SQLITE_PAGER_PRAGMAS */

/*
** Set the names of the first N columns to the values in azCol[]
*/
static void setAllColumnNames(
  Vdbe *v,               /* The query under construction */
  int N,                 /* Number of columns */
  const char **azCol     /* Names of columns */
){
  int i;

  sqlite3VdbeSetNumCols(v, N);




  for(i=0; i<N; i++){
    sqlite3VdbeSetColName(v, i, COLNAME_NAME, azCol[i], SQLITE_STATIC);
  }
}
static void setOneColumnName(Vdbe *v, const char *z){
  setAllColumnNames(v, 1, &z);
}

/*
** Generate code to return a single integer value.
*/
static void returnSingleInt(Vdbe *v, const char *zLabel, i64 value){
  sqlite3VdbeAddOp4Dup8(v, OP_Int64, 0, 1, 0, (const u8*)&value, P4_INT64);
  setOneColumnName(v, zLabel);
  sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
}

/*
** Generate code to return a single text value.
*/
static void returnSingleText(
  Vdbe *v,                /* Prepared statement under construction */
  const char *zLabel,     /* Name of the result column */
  const char *zValue      /* Value to be returned */
){
  if( zValue ){
    sqlite3VdbeLoadString(v, 1, (const char*)zValue);
    setOneColumnName(v, zLabel);
    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
  }
}


/*
** Set the safety_level and pager flags for pager iDb.  Or if iDb<0







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  }
  db->temp_store = (u8)ts;
  return SQLITE_OK;
}
#endif /* SQLITE_PAGER_PRAGMAS */

/*
** Set result column names for a pragma.
*/
static void setPragmaResultColumnNames(
  Vdbe *v,                     /* The query under construction */

  const PragmaName *pPragma    /* The pragma */
){

  u8 n = pPragma->nPragCName;
  sqlite3VdbeSetNumCols(v, n==0 ? 1 : n);
  if( n==0 ){
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, pPragma->zName, SQLITE_STATIC);
  }else{
    int i, j;
    for(i=0, j=pPragma->iPragCName; i<n; i++, j++){
      sqlite3VdbeSetColName(v, i, COLNAME_NAME, pragCName[j], SQLITE_STATIC);
    }
  }


}

/*
** Generate code to return a single integer value.
*/
static void returnSingleInt(Vdbe *v, i64 value){
  sqlite3VdbeAddOp4Dup8(v, OP_Int64, 0, 1, 0, (const u8*)&value, P4_INT64);

  sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
}

/*
** Generate code to return a single text value.
*/
static void returnSingleText(
  Vdbe *v,                /* Prepared statement under construction */

  const char *zValue      /* Value to be returned */
){
  if( zValue ){
    sqlite3VdbeLoadString(v, 1, (const char*)zValue);

    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
  }
}


/*
** Set the safety_level and pager flags for pager iDb.  Or if iDb<0
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  assert( PAGER_JOURNALMODE_MEMORY==4 );
  assert( PAGER_JOURNALMODE_WAL==5 );
  assert( eMode>=0 && eMode<=ArraySize(azModeName) );

  if( eMode==ArraySize(azModeName) ) return 0;
  return azModeName[eMode];
}





















/*
** Process a pragma statement.  
**
** Pragmas are of this form:
**
**      PRAGMA [schema.]id [= value-list]







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  assert( PAGER_JOURNALMODE_MEMORY==4 );
  assert( PAGER_JOURNALMODE_WAL==5 );
  assert( eMode>=0 && eMode<=ArraySize(azModeName) );

  if( eMode==ArraySize(azModeName) ) return 0;
  return azModeName[eMode];
}

/*
** Locate a pragma in the aPragmaName[] array.
*/
static const PragmaName *pragmaLocate(const char *zName){
  int upr, lwr, mid, rc;
  lwr = 0;
  upr = ArraySize(aPragmaName)-1;
  while( lwr<=upr ){
    mid = (lwr+upr)/2;
    rc = sqlite3_stricmp(zName, aPragmaName[mid].zName);
    if( rc==0 ) break;
    if( rc<0 ){
      upr = mid - 1;
    }else{
      lwr = mid + 1;
    }
  }
  return lwr>upr ? 0 : &aPragmaName[mid];
}

/*
** Process a pragma statement.  
**
** Pragmas are of this form:
**
**      PRAGMA [schema.]id [= value-list]
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){
  char *zLeft = 0;       /* Nul-terminated UTF-8 string <id> */
  char *zRight = 0;      /* Nul-terminated UTF-8 string <value>, or NULL */
  const char *zDb = 0;   /* The database name */
  Token *pId;            /* Pointer to <id> token */
  char *aFcntl[4];       /* Argument to SQLITE_FCNTL_PRAGMA */
  int iDb;               /* Database index for <database> */
  int lwr, upr, mid = 0;       /* Binary search bounds */
  int rc;                      /* return value form SQLITE_FCNTL_PRAGMA */
  sqlite3 *db = pParse->db;    /* The database connection */
  Db *pDb;                     /* The specific database being pragmaed */
  Vdbe *v = sqlite3GetVdbe(pParse);  /* Prepared statement */
  const struct sPragmaNames *pPragma;

  if( v==0 ) goto pragma_out;
  sqlite3VdbeRunOnlyOnce(v);
  pParse->nMem = 2;

  /* Interpret the [schema.] part of the pragma statement. iDb is the
  ** index of the database this pragma is being applied to in db.aDb[]. */







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){
  char *zLeft = 0;       /* Nul-terminated UTF-8 string <id> */
  char *zRight = 0;      /* Nul-terminated UTF-8 string <value>, or NULL */
  const char *zDb = 0;   /* The database name */
  Token *pId;            /* Pointer to <id> token */
  char *aFcntl[4];       /* Argument to SQLITE_FCNTL_PRAGMA */
  int iDb;               /* Database index for <database> */

  int rc;                      /* return value form SQLITE_FCNTL_PRAGMA */
  sqlite3 *db = pParse->db;    /* The database connection */
  Db *pDb;                     /* The specific database being pragmaed */
  Vdbe *v = sqlite3GetVdbe(pParse);  /* Prepared statement */
  const PragmaName *pPragma;   /* The pragma */

  if( v==0 ) goto pragma_out;
  sqlite3VdbeRunOnlyOnce(v);
  pParse->nMem = 2;

  /* Interpret the [schema.] part of the pragma statement. iDb is the
  ** index of the database this pragma is being applied to in db.aDb[]. */
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  aFcntl[0] = 0;
  aFcntl[1] = zLeft;
  aFcntl[2] = zRight;
  aFcntl[3] = 0;
  db->busyHandler.nBusy = 0;
  rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_PRAGMA, (void*)aFcntl);
  if( rc==SQLITE_OK ){


    returnSingleText(v, "result", aFcntl[0]);
    sqlite3_free(aFcntl[0]);
    goto pragma_out;
  }
  if( rc!=SQLITE_NOTFOUND ){
    if( aFcntl[0] ){
      sqlite3ErrorMsg(pParse, "%s", aFcntl[0]);
      sqlite3_free(aFcntl[0]);
    }
    pParse->nErr++;
    pParse->rc = rc;
    goto pragma_out;
  }

  /* Locate the pragma in the lookup table */
  lwr = 0;
  upr = ArraySize(aPragmaNames)-1;
  while( lwr<=upr ){
    mid = (lwr+upr)/2;
    rc = sqlite3_stricmp(zLeft, aPragmaNames[mid].zName);
    if( rc==0 ) break;
    if( rc<0 ){
      upr = mid - 1;
    }else{
      lwr = mid + 1;
    }
  }
  if( lwr>upr ) goto pragma_out;
  pPragma = &aPragmaNames[mid];

  /* Make sure the database schema is loaded if the pragma requires that */
  if( (pPragma->mPragFlag & PragFlag_NeedSchema)!=0 ){
    if( sqlite3ReadSchema(pParse) ) goto pragma_out;
  }






  /* Jump to the appropriate pragma handler */
  switch( pPragma->ePragTyp ){
  
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
  /*
  **  PRAGMA [schema.]default_cache_size







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  aFcntl[0] = 0;
  aFcntl[1] = zLeft;
  aFcntl[2] = zRight;
  aFcntl[3] = 0;
  db->busyHandler.nBusy = 0;
  rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_PRAGMA, (void*)aFcntl);
  if( rc==SQLITE_OK ){
    sqlite3VdbeSetNumCols(v, 1);
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, aFcntl[0], SQLITE_TRANSIENT);
    returnSingleText(v, aFcntl[0]);
    sqlite3_free(aFcntl[0]);
    goto pragma_out;
  }
  if( rc!=SQLITE_NOTFOUND ){
    if( aFcntl[0] ){
      sqlite3ErrorMsg(pParse, "%s", aFcntl[0]);
      sqlite3_free(aFcntl[0]);
    }
    pParse->nErr++;
    pParse->rc = rc;
    goto pragma_out;
  }

  /* Locate the pragma in the lookup table */

  pPragma = pragmaLocate(zLeft);










  if( pPragma==0 ) goto pragma_out;


  /* Make sure the database schema is loaded if the pragma requires that */
  if( (pPragma->mPragFlg & PragFlg_NeedSchema)!=0 ){
    if( sqlite3ReadSchema(pParse) ) goto pragma_out;
  }

  /* Register the result column names for pragmas that return results */
  if( (pPragma->mPragFlg & PragFlg_NoColumns)==0 ){
    setPragmaResultColumnNames(v, pPragma);
  }

  /* Jump to the appropriate pragma handler */
  switch( pPragma->ePragTyp ){
  
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
  /*
  **  PRAGMA [schema.]default_cache_size
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      { OP_Integer,     0, 1,        0},                         /* 6 */
      { OP_Noop,        0, 0,        0},
      { OP_ResultRow,   1, 1,        0},
    };
    VdbeOp *aOp;
    sqlite3VdbeUsesBtree(v, iDb);
    if( !zRight ){
      setOneColumnName(v, "cache_size");
      pParse->nMem += 2;
      sqlite3VdbeVerifyNoMallocRequired(v, ArraySize(getCacheSize));
      aOp = sqlite3VdbeAddOpList(v, ArraySize(getCacheSize), getCacheSize, iLn);
      if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
      aOp[0].p1 = iDb;
      aOp[1].p1 = iDb;
      aOp[6].p1 = SQLITE_DEFAULT_CACHE_SIZE;







<







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      { OP_Integer,     0, 1,        0},                         /* 6 */
      { OP_Noop,        0, 0,        0},
      { OP_ResultRow,   1, 1,        0},
    };
    VdbeOp *aOp;
    sqlite3VdbeUsesBtree(v, iDb);
    if( !zRight ){

      pParse->nMem += 2;
      sqlite3VdbeVerifyNoMallocRequired(v, ArraySize(getCacheSize));
      aOp = sqlite3VdbeAddOpList(v, ArraySize(getCacheSize), getCacheSize, iLn);
      if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
      aOp[0].p1 = iDb;
      aOp[1].p1 = iDb;
      aOp[6].p1 = SQLITE_DEFAULT_CACHE_SIZE;
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  ** the database has not yet been created.
  */
  case PragTyp_PAGE_SIZE: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      int size = ALWAYS(pBt) ? sqlite3BtreeGetPageSize(pBt) : 0;
      returnSingleInt(v, "page_size", size);
    }else{
      /* Malloc may fail when setting the page-size, as there is an internal
      ** buffer that the pager module resizes using sqlite3_realloc().
      */
      db->nextPagesize = sqlite3Atoi(zRight);
      if( SQLITE_NOMEM==sqlite3BtreeSetPageSize(pBt, db->nextPagesize,-1,0) ){
        sqlite3OomFault(db);







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  ** the database has not yet been created.
  */
  case PragTyp_PAGE_SIZE: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      int size = ALWAYS(pBt) ? sqlite3BtreeGetPageSize(pBt) : 0;
      returnSingleInt(v, size);
    }else{
      /* Malloc may fail when setting the page-size, as there is an internal
      ** buffer that the pager module resizes using sqlite3_realloc().
      */
      db->nextPagesize = sqlite3Atoi(zRight);
      if( SQLITE_NOMEM==sqlite3BtreeSetPageSize(pBt, db->nextPagesize,-1,0) ){
        sqlite3OomFault(db);
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    if( pId2->n==0 && b>=0 ){
      int ii;
      for(ii=0; ii<db->nDb; ii++){
        sqlite3BtreeSecureDelete(db->aDb[ii].pBt, b);
      }
    }
    b = sqlite3BtreeSecureDelete(pBt, b);
    returnSingleInt(v, "secure_delete", b);
    break;
  }

  /*
  **  PRAGMA [schema.]max_page_count
  **  PRAGMA [schema.]max_page_count=N
  **







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    if( pId2->n==0 && b>=0 ){
      int ii;
      for(ii=0; ii<db->nDb; ii++){
        sqlite3BtreeSecureDelete(db->aDb[ii].pBt, b);
      }
    }
    b = sqlite3BtreeSecureDelete(pBt, b);
    returnSingleInt(v, b);
    break;
  }

  /*
  **  PRAGMA [schema.]max_page_count
  **  PRAGMA [schema.]max_page_count=N
  **
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    if( sqlite3Tolower(zLeft[0])=='p' ){
      sqlite3VdbeAddOp2(v, OP_Pagecount, iDb, iReg);
    }else{
      sqlite3VdbeAddOp3(v, OP_MaxPgcnt, iDb, iReg, 
                        sqlite3AbsInt32(sqlite3Atoi(zRight)));
    }
    sqlite3VdbeAddOp2(v, OP_ResultRow, iReg, 1);
    sqlite3VdbeSetNumCols(v, 1);
    sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLeft, SQLITE_TRANSIENT);
    break;
  }

  /*
  **  PRAGMA [schema.]locking_mode
  **  PRAGMA [schema.]locking_mode = (normal|exclusive)
  */







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    if( sqlite3Tolower(zLeft[0])=='p' ){
      sqlite3VdbeAddOp2(v, OP_Pagecount, iDb, iReg);
    }else{
      sqlite3VdbeAddOp3(v, OP_MaxPgcnt, iDb, iReg, 
                        sqlite3AbsInt32(sqlite3Atoi(zRight)));
    }
    sqlite3VdbeAddOp2(v, OP_ResultRow, iReg, 1);


    break;
  }

  /*
  **  PRAGMA [schema.]locking_mode
  **  PRAGMA [schema.]locking_mode = (normal|exclusive)
  */
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    }

    assert( eMode==PAGER_LOCKINGMODE_NORMAL
            || eMode==PAGER_LOCKINGMODE_EXCLUSIVE );
    if( eMode==PAGER_LOCKINGMODE_EXCLUSIVE ){
      zRet = "exclusive";
    }
    returnSingleText(v, "locking_mode", zRet);
    break;
  }

  /*
  **  PRAGMA [schema.]journal_mode
  **  PRAGMA [schema.]journal_mode =
  **                      (delete|persist|off|truncate|memory|wal|off)
  */
  case PragTyp_JOURNAL_MODE: {
    int eMode;        /* One of the PAGER_JOURNALMODE_XXX symbols */
    int ii;           /* Loop counter */

    setOneColumnName(v, "journal_mode");
    if( zRight==0 ){
      /* If there is no "=MODE" part of the pragma, do a query for the
      ** current mode */
      eMode = PAGER_JOURNALMODE_QUERY;
    }else{
      const char *zMode;
      int n = sqlite3Strlen30(zRight);







|












<







581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600

601
602
603
604
605
606
607
    }

    assert( eMode==PAGER_LOCKINGMODE_NORMAL
            || eMode==PAGER_LOCKINGMODE_EXCLUSIVE );
    if( eMode==PAGER_LOCKINGMODE_EXCLUSIVE ){
      zRet = "exclusive";
    }
    returnSingleText(v, zRet);
    break;
  }

  /*
  **  PRAGMA [schema.]journal_mode
  **  PRAGMA [schema.]journal_mode =
  **                      (delete|persist|off|truncate|memory|wal|off)
  */
  case PragTyp_JOURNAL_MODE: {
    int eMode;        /* One of the PAGER_JOURNALMODE_XXX symbols */
    int ii;           /* Loop counter */


    if( zRight==0 ){
      /* If there is no "=MODE" part of the pragma, do a query for the
      ** current mode */
      eMode = PAGER_JOURNALMODE_QUERY;
    }else{
      const char *zMode;
      int n = sqlite3Strlen30(zRight);
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
    Pager *pPager = sqlite3BtreePager(pDb->pBt);
    i64 iLimit = -2;
    if( zRight ){
      sqlite3DecOrHexToI64(zRight, &iLimit);
      if( iLimit<-1 ) iLimit = -1;
    }
    iLimit = sqlite3PagerJournalSizeLimit(pPager, iLimit);
    returnSingleInt(v, "journal_size_limit", iLimit);
    break;
  }

#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

  /*
  **  PRAGMA [schema.]auto_vacuum
  **  PRAGMA [schema.]auto_vacuum=N
  **
  ** Get or set the value of the database 'auto-vacuum' parameter.
  ** The value is one of:  0 NONE 1 FULL 2 INCREMENTAL
  */
#ifndef SQLITE_OMIT_AUTOVACUUM
  case PragTyp_AUTO_VACUUM: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      returnSingleInt(v, "auto_vacuum", sqlite3BtreeGetAutoVacuum(pBt));
    }else{
      int eAuto = getAutoVacuum(zRight);
      assert( eAuto>=0 && eAuto<=2 );
      db->nextAutovac = (u8)eAuto;
      /* Call SetAutoVacuum() to set initialize the internal auto and
      ** incr-vacuum flags. This is required in case this connection
      ** creates the database file. It is important that it is created







|

















|







639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
    Pager *pPager = sqlite3BtreePager(pDb->pBt);
    i64 iLimit = -2;
    if( zRight ){
      sqlite3DecOrHexToI64(zRight, &iLimit);
      if( iLimit<-1 ) iLimit = -1;
    }
    iLimit = sqlite3PagerJournalSizeLimit(pPager, iLimit);
    returnSingleInt(v, iLimit);
    break;
  }

#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

  /*
  **  PRAGMA [schema.]auto_vacuum
  **  PRAGMA [schema.]auto_vacuum=N
  **
  ** Get or set the value of the database 'auto-vacuum' parameter.
  ** The value is one of:  0 NONE 1 FULL 2 INCREMENTAL
  */
#ifndef SQLITE_OMIT_AUTOVACUUM
  case PragTyp_AUTO_VACUUM: {
    Btree *pBt = pDb->pBt;
    assert( pBt!=0 );
    if( !zRight ){
      returnSingleInt(v, sqlite3BtreeGetAutoVacuum(pBt));
    }else{
      int eAuto = getAutoVacuum(zRight);
      assert( eAuto>=0 && eAuto<=2 );
      db->nextAutovac = (u8)eAuto;
      /* Call SetAutoVacuum() to set initialize the internal auto and
      ** incr-vacuum flags. This is required in case this connection
      ** creates the database file. It is important that it is created
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
  ** number of pages in the cache.  If N is negative, then the
  ** number of pages is adjusted so that the cache uses -N kibibytes
  ** of memory.
  */
  case PragTyp_CACHE_SIZE: {
    assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
    if( !zRight ){
      returnSingleInt(v, "cache_size", pDb->pSchema->cache_size);
    }else{
      int size = sqlite3Atoi(zRight);
      pDb->pSchema->cache_size = size;
      sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
    }
    break;
  }







|







736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
  ** number of pages in the cache.  If N is negative, then the
  ** number of pages is adjusted so that the cache uses -N kibibytes
  ** of memory.
  */
  case PragTyp_CACHE_SIZE: {
    assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
    if( !zRight ){
      returnSingleInt(v, pDb->pSchema->cache_size);
    }else{
      int size = sqlite3Atoi(zRight);
      pDb->pSchema->cache_size = size;
      sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
    }
    break;
  }
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
  **
  ** The cache_spill=BOOLEAN setting applies to all attached schemas,
  ** not just the schema specified.
  */
  case PragTyp_CACHE_SPILL: {
    assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
    if( !zRight ){
      returnSingleInt(v, "cache_spill", 
         (db->flags & SQLITE_CacheSpill)==0 ? 0 : 
            sqlite3BtreeSetSpillSize(pDb->pBt,0));
    }else{
      int size = 1;
      if( sqlite3GetInt32(zRight, &size) ){
        sqlite3BtreeSetSpillSize(pDb->pBt, size);
      }







|







770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
  **
  ** The cache_spill=BOOLEAN setting applies to all attached schemas,
  ** not just the schema specified.
  */
  case PragTyp_CACHE_SPILL: {
    assert( sqlite3SchemaMutexHeld(db, iDb, 0) );
    if( !zRight ){
      returnSingleInt(v,
         (db->flags & SQLITE_CacheSpill)==0 ? 0 : 
            sqlite3BtreeSetSpillSize(pDb->pBt,0));
    }else{
      int size = 1;
      if( sqlite3GetInt32(zRight, &size) ){
        sqlite3BtreeSetSpillSize(pDb->pBt, size);
      }
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
    sz = -1;
    rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_MMAP_SIZE, &sz);
#else
    sz = 0;
    rc = SQLITE_OK;
#endif
    if( rc==SQLITE_OK ){
      returnSingleInt(v, "mmap_size", sz);
    }else if( rc!=SQLITE_NOTFOUND ){
      pParse->nErr++;
      pParse->rc = rc;
    }
    break;
  }

  /*
  **   PRAGMA temp_store
  **   PRAGMA temp_store = "default"|"memory"|"file"
  **
  ** Return or set the local value of the temp_store flag.  Changing
  ** the local value does not make changes to the disk file and the default
  ** value will be restored the next time the database is opened.
  **
  ** Note that it is possible for the library compile-time options to
  ** override this setting
  */
  case PragTyp_TEMP_STORE: {
    if( !zRight ){
      returnSingleInt(v, "temp_store", db->temp_store);
    }else{
      changeTempStorage(pParse, zRight);
    }
    break;
  }

  /*
  **   PRAGMA temp_store_directory
  **   PRAGMA temp_store_directory = ""|"directory_name"
  **
  ** Return or set the local value of the temp_store_directory flag.  Changing
  ** the value sets a specific directory to be used for temporary files.
  ** Setting to a null string reverts to the default temporary directory search.
  ** If temporary directory is changed, then invalidateTempStorage.
  **
  */
  case PragTyp_TEMP_STORE_DIRECTORY: {
    if( !zRight ){
      returnSingleText(v, "temp_store_directory", sqlite3_temp_directory);
    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");







|




















|


















|







824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
    sz = -1;
    rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_MMAP_SIZE, &sz);
#else
    sz = 0;
    rc = SQLITE_OK;
#endif
    if( rc==SQLITE_OK ){
      returnSingleInt(v, sz);
    }else if( rc!=SQLITE_NOTFOUND ){
      pParse->nErr++;
      pParse->rc = rc;
    }
    break;
  }

  /*
  **   PRAGMA temp_store
  **   PRAGMA temp_store = "default"|"memory"|"file"
  **
  ** Return or set the local value of the temp_store flag.  Changing
  ** the local value does not make changes to the disk file and the default
  ** value will be restored the next time the database is opened.
  **
  ** Note that it is possible for the library compile-time options to
  ** override this setting
  */
  case PragTyp_TEMP_STORE: {
    if( !zRight ){
      returnSingleInt(v, db->temp_store);
    }else{
      changeTempStorage(pParse, zRight);
    }
    break;
  }

  /*
  **   PRAGMA temp_store_directory
  **   PRAGMA temp_store_directory = ""|"directory_name"
  **
  ** Return or set the local value of the temp_store_directory flag.  Changing
  ** the value sets a specific directory to be used for temporary files.
  ** Setting to a null string reverts to the default temporary directory search.
  ** If temporary directory is changed, then invalidateTempStorage.
  **
  */
  case PragTyp_TEMP_STORE_DIRECTORY: {
    if( !zRight ){
      returnSingleText(v, sqlite3_temp_directory);
    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
  ** a relative path will probably be based on the current directory for the
  ** process.  Database file specified with an absolute path are not impacted
  ** by this setting, regardless of its value.
  **
  */
  case PragTyp_DATA_STORE_DIRECTORY: {
    if( !zRight ){
      returnSingleText(v, "data_store_directory", sqlite3_data_directory);
    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");







|







908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
  ** a relative path will probably be based on the current directory for the
  ** process.  Database file specified with an absolute path are not impacted
  ** by this setting, regardless of its value.
  **
  */
  case PragTyp_DATA_STORE_DIRECTORY: {
    if( !zRight ){
      returnSingleText(v, sqlite3_data_directory);
    }else{
#ifndef SQLITE_OMIT_WSD
      if( zRight[0] ){
        int res;
        rc = sqlite3OsAccess(db->pVfs, zRight, SQLITE_ACCESS_READWRITE, &res);
        if( rc!=SQLITE_OK || res==0 ){
          sqlite3ErrorMsg(pParse, "not a writable directory");
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
  case PragTyp_LOCK_PROXY_FILE: {
    if( !zRight ){
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      char *proxy_file_path = NULL;
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      sqlite3OsFileControlHint(pFile, SQLITE_GET_LOCKPROXYFILE, 
                           &proxy_file_path);
      returnSingleText(v, "lock_proxy_file", proxy_file_path);
    }else{
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      int res;
      if( zRight[0] ){
        res=sqlite3OsFileControl(pFile, SQLITE_SET_LOCKPROXYFILE, 
                                     zRight);







|







947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
  case PragTyp_LOCK_PROXY_FILE: {
    if( !zRight ){
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      char *proxy_file_path = NULL;
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      sqlite3OsFileControlHint(pFile, SQLITE_GET_LOCKPROXYFILE, 
                           &proxy_file_path);
      returnSingleText(v, proxy_file_path);
    }else{
      Pager *pPager = sqlite3BtreePager(pDb->pBt);
      sqlite3_file *pFile = sqlite3PagerFile(pPager);
      int res;
      if( zRight[0] ){
        res=sqlite3OsFileControl(pFile, SQLITE_SET_LOCKPROXYFILE, 
                                     zRight);
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997

998
999
1000
1001
1002
1003
1004
1005
  ** Return or set the local value of the synchronous flag.  Changing
  ** the local value does not make changes to the disk file and the
  ** default value will be restored the next time the database is
  ** opened.
  */
  case PragTyp_SYNCHRONOUS: {
    if( !zRight ){
      returnSingleInt(v, "synchronous", pDb->safety_level-1);
    }else{
      if( !db->autoCommit ){
        sqlite3ErrorMsg(pParse, 
            "Safety level may not be changed inside a transaction");
      }else{
        int iLevel = (getSafetyLevel(zRight,0,1)+1) & PAGER_SYNCHRONOUS_MASK;
        if( iLevel==0 ) iLevel = 1;
        pDb->safety_level = iLevel;
        pDb->bSyncSet = 1;
        setAllPagerFlags(db);
      }
    }
    break;
  }
#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

#ifndef SQLITE_OMIT_FLAG_PRAGMAS
  case PragTyp_FLAG: {
    if( zRight==0 ){

      returnSingleInt(v, pPragma->zName, (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);
      }







|



















>
|







979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
  ** Return or set the local value of the synchronous flag.  Changing
  ** the local value does not make changes to the disk file and the
  ** default value will be restored the next time the database is
  ** opened.
  */
  case PragTyp_SYNCHRONOUS: {
    if( !zRight ){
      returnSingleInt(v, pDb->safety_level-1);
    }else{
      if( !db->autoCommit ){
        sqlite3ErrorMsg(pParse, 
            "Safety level may not be changed inside a transaction");
      }else{
        int iLevel = (getSafetyLevel(zRight,0,1)+1) & PAGER_SYNCHRONOUS_MASK;
        if( iLevel==0 ) iLevel = 1;
        pDb->safety_level = iLevel;
        pDb->bSyncSet = 1;
        setAllPagerFlags(db);
      }
    }
    break;
  }
#endif /* SQLITE_OMIT_PAGER_PRAGMAS */

#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);
      }
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
  ** notnull:    True if 'NOT NULL' is part of column declaration
  ** dflt_value: The default value for the column, if any.
  */
  case PragTyp_TABLE_INFO: if( zRight ){
    Table *pTab;
    pTab = sqlite3LocateTable(pParse, LOCATE_NOERR, zRight, zDb);
    if( pTab ){
      static const char *azCol[] = {
         "cid", "name", "type", "notnull", "dflt_value", "pk"
      };
      int i, k;
      int nHidden = 0;
      Column *pCol;
      Index *pPk = sqlite3PrimaryKeyIndex(pTab);
      pParse->nMem = 6;
      sqlite3CodeVerifySchema(pParse, iDb);
      setAllColumnNames(v, 6, azCol); assert( 6==ArraySize(azCol) );
      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 ){







<
<
<






<







1050
1051
1052
1053
1054
1055
1056



1057
1058
1059
1060
1061
1062

1063
1064
1065
1066
1067
1068
1069
  ** notnull:    True if 'NOT NULL' is part of column declaration
  ** dflt_value: The default value for the column, if any.
  */
  case PragTyp_TABLE_INFO: if( zRight ){
    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 ){
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6);
      }
    }
  }
  break;

  case PragTyp_STATS: {
    static const char *azCol[] = { "table", "index", "width", "height" };
    Index *pIdx;
    HashElem *i;
    v = sqlite3GetVdbe(pParse);
    pParse->nMem = 4;
    sqlite3CodeVerifySchema(pParse, iDb);
    setAllColumnNames(v, 4, azCol);  assert( 4==ArraySize(azCol) );
    for(i=sqliteHashFirst(&pDb->pSchema->tblHash); i; i=sqliteHashNext(i)){
      Table *pTab = sqliteHashData(i);
      sqlite3VdbeMultiLoad(v, 1, "ssii",
           pTab->zName,
           0,
           pTab->szTabRow,
           pTab->nRowLogEst);







<


<


<







1084
1085
1086
1087
1088
1089
1090

1091
1092

1093
1094

1095
1096
1097
1098
1099
1100
1101
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 6);
      }
    }
  }
  break;

  case PragTyp_STATS: {

    Index *pIdx;
    HashElem *i;

    pParse->nMem = 4;
    sqlite3CodeVerifySchema(pParse, iDb);

    for(i=sqliteHashFirst(&pDb->pSchema->tblHash); i; i=sqliteHashNext(i)){
      Table *pTab = sqliteHashData(i);
      sqlite3VdbeMultiLoad(v, 1, "ssii",
           pTab->zName,
           0,
           pTab->szTabRow,
           pTab->nRowLogEst);
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
    Table *pTab;
    pIdx = sqlite3FindIndex(db, zRight, zDb);
    if( pIdx==0 ){
      pTab = sqlite3FindTable(db, zRight, zDb);
      if( pTab && !HasRowid(pTab) ) pIdx = sqlite3PrimaryKeyIndex(pTab);
    }
    if( pIdx ){
      static const char *azCol[] = {
         "seqno", "cid", "name", "desc", "coll", "key"
      };
      int i;
      int mx;
      if( pPragma->iArg ){
        /* PRAGMA index_xinfo (newer version with more rows and columns) */
        mx = pIdx->nColumn;
        pParse->nMem = 6;
      }else{
        /* PRAGMA index_info (legacy version) */
        mx = pIdx->nKeyCol;
        pParse->nMem = 3;
      }
      pTab = pIdx->pTable;
      sqlite3CodeVerifySchema(pParse, iDb);
      assert( pParse->nMem<=ArraySize(azCol) );
      setAllColumnNames(v, pParse->nMem, azCol);
      for(i=0; i<mx; i++){
        i16 cnum = pIdx->aiColumn[i];
        sqlite3VdbeMultiLoad(v, 1, "iis", i, cnum,
                             cnum<0 ? 0 : pTab->aCol[cnum].zName);
        if( pPragma->iArg ){
          sqlite3VdbeMultiLoad(v, 4, "isi",
            pIdx->aSortOrder[i],







<
<
<













|
<







1116
1117
1118
1119
1120
1121
1122



1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136

1137
1138
1139
1140
1141
1142
1143
    Table *pTab;
    pIdx = sqlite3FindIndex(db, zRight, zDb);
    if( pIdx==0 ){
      pTab = sqlite3FindTable(db, zRight, zDb);
      if( pTab && !HasRowid(pTab) ) pIdx = sqlite3PrimaryKeyIndex(pTab);
    }
    if( pIdx ){



      int i;
      int mx;
      if( pPragma->iArg ){
        /* PRAGMA index_xinfo (newer version with more rows and columns) */
        mx = pIdx->nColumn;
        pParse->nMem = 6;
      }else{
        /* PRAGMA index_info (legacy version) */
        mx = pIdx->nKeyCol;
        pParse->nMem = 3;
      }
      pTab = pIdx->pTable;
      sqlite3CodeVerifySchema(pParse, iDb);
      assert( pParse->nMem<=pPragma->nPragCName );

      for(i=0; i<mx; i++){
        i16 cnum = pIdx->aiColumn[i];
        sqlite3VdbeMultiLoad(v, 1, "iis", i, cnum,
                             cnum<0 ? 0 : pTab->aCol[cnum].zName);
        if( pPragma->iArg ){
          sqlite3VdbeMultiLoad(v, 4, "isi",
            pIdx->aSortOrder[i],
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
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1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237

  case PragTyp_INDEX_LIST: if( zRight ){
    Index *pIdx;
    Table *pTab;
    int i;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){
      static const char *azCol[] = {
        "seq", "name", "unique", "origin", "partial"
      };
      v = sqlite3GetVdbe(pParse);
      pParse->nMem = 5;
      sqlite3CodeVerifySchema(pParse, iDb);
      setAllColumnNames(v, 5, azCol);  assert( 5==ArraySize(azCol) );
      for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){
        const char *azOrigin[] = { "c", "u", "pk" };
        sqlite3VdbeMultiLoad(v, 1, "isisi",
           i,
           pIdx->zName,
           IsUniqueIndex(pIdx),
           azOrigin[pIdx->idxType],
           pIdx->pPartIdxWhere!=0);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 5);
      }
    }
  }
  break;

  case PragTyp_DATABASE_LIST: {
    static const char *azCol[] = { "seq", "name", "file" };
    int i;
    pParse->nMem = 3;
    setAllColumnNames(v, 3, azCol); assert( 3==ArraySize(azCol) );
    for(i=0; i<db->nDb; i++){
      if( db->aDb[i].pBt==0 ) continue;
      assert( db->aDb[i].zDbSName!=0 );
      sqlite3VdbeMultiLoad(v, 1, "iss",
         i,
         db->aDb[i].zDbSName,
         sqlite3BtreeGetFilename(db->aDb[i].pBt));
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
    }
  }
  break;

  case PragTyp_COLLATION_LIST: {
    static const char *azCol[] = { "seq", "name" };
    int i = 0;
    HashElem *p;
    pParse->nMem = 2;
    setAllColumnNames(v, 2, azCol); assert( 2==ArraySize(azCol) );
    for(p=sqliteHashFirst(&db->aCollSeq); p; p=sqliteHashNext(p)){
      CollSeq *pColl = (CollSeq *)sqliteHashData(p);
      sqlite3VdbeMultiLoad(v, 1, "is", i++, pColl->zName);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
  }
  break;
#endif /* SQLITE_OMIT_SCHEMA_PRAGMAS */

#ifndef SQLITE_OMIT_FOREIGN_KEY
  case PragTyp_FOREIGN_KEY_LIST: if( zRight ){
    FKey *pFK;
    Table *pTab;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){
      v = sqlite3GetVdbe(pParse);
      pFK = pTab->pFKey;
      if( pFK ){
        static const char *azCol[] = {
           "id", "seq", "table", "from", "to", "on_update", "on_delete",
           "match"
        };
        int i = 0; 
        pParse->nMem = 8;
        sqlite3CodeVerifySchema(pParse, iDb);
        setAllColumnNames(v, 8, azCol); assert( 8==ArraySize(azCol) );
        while(pFK){
          int j;
          for(j=0; j<pFK->nCol; j++){
            sqlite3VdbeMultiLoad(v, 1, "iissssss",
                   i,
                   j,
                   pFK->zTo,







<
<
<
<


<















<


<













<



<















<


<
<
<
<



<







1152
1153
1154
1155
1156
1157
1158




1159
1160

1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175

1176
1177

1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190

1191
1192
1193

1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208

1209
1210




1211
1212
1213

1214
1215
1216
1217
1218
1219
1220

  case PragTyp_INDEX_LIST: if( zRight ){
    Index *pIdx;
    Table *pTab;
    int i;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){




      pParse->nMem = 5;
      sqlite3CodeVerifySchema(pParse, iDb);

      for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){
        const char *azOrigin[] = { "c", "u", "pk" };
        sqlite3VdbeMultiLoad(v, 1, "isisi",
           i,
           pIdx->zName,
           IsUniqueIndex(pIdx),
           azOrigin[pIdx->idxType],
           pIdx->pPartIdxWhere!=0);
        sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 5);
      }
    }
  }
  break;

  case PragTyp_DATABASE_LIST: {

    int i;
    pParse->nMem = 3;

    for(i=0; i<db->nDb; i++){
      if( db->aDb[i].pBt==0 ) continue;
      assert( db->aDb[i].zDbSName!=0 );
      sqlite3VdbeMultiLoad(v, 1, "iss",
         i,
         db->aDb[i].zDbSName,
         sqlite3BtreeGetFilename(db->aDb[i].pBt));
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
    }
  }
  break;

  case PragTyp_COLLATION_LIST: {

    int i = 0;
    HashElem *p;
    pParse->nMem = 2;

    for(p=sqliteHashFirst(&db->aCollSeq); p; p=sqliteHashNext(p)){
      CollSeq *pColl = (CollSeq *)sqliteHashData(p);
      sqlite3VdbeMultiLoad(v, 1, "is", i++, pColl->zName);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 2);
    }
  }
  break;
#endif /* SQLITE_OMIT_SCHEMA_PRAGMAS */

#ifndef SQLITE_OMIT_FOREIGN_KEY
  case PragTyp_FOREIGN_KEY_LIST: if( zRight ){
    FKey *pFK;
    Table *pTab;
    pTab = sqlite3FindTable(db, zRight, zDb);
    if( pTab ){

      pFK = pTab->pFKey;
      if( pFK ){




        int i = 0; 
        pParse->nMem = 8;
        sqlite3CodeVerifySchema(pParse, iDb);

        while(pFK){
          int j;
          for(j=0; j<pFK->nCol; j++){
            sqlite3VdbeMultiLoad(v, 1, "iissssss",
                   i,
                   j,
                   pFK->zTo,
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
    int x;                 /* result variable */
    int regResult;         /* 3 registers to hold a result row */
    int regKey;            /* Register to hold key for checking the FK */
    int regRow;            /* Registers to hold a row from pTab */
    int addrTop;           /* Top of a loop checking foreign keys */
    int addrOk;            /* Jump here if the key is OK */
    int *aiCols;           /* child to parent column mapping */
    static const char *azCol[] = { "table", "rowid", "parent", "fkid" };

    regResult = pParse->nMem+1;
    pParse->nMem += 4;
    regKey = ++pParse->nMem;
    regRow = ++pParse->nMem;
    v = sqlite3GetVdbe(pParse);
    setAllColumnNames(v, 4, azCol); assert( 4==ArraySize(azCol) );
    sqlite3CodeVerifySchema(pParse, iDb);
    k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash);
    while( k ){
      if( zRight ){
        pTab = sqlite3LocateTable(pParse, 0, zRight, zDb);
        k = 0;
      }else{







<





<
<







1247
1248
1249
1250
1251
1252
1253

1254
1255
1256
1257
1258


1259
1260
1261
1262
1263
1264
1265
    int x;                 /* result variable */
    int regResult;         /* 3 registers to hold a result row */
    int regKey;            /* Register to hold key for checking the FK */
    int regRow;            /* Registers to hold a row from pTab */
    int addrTop;           /* Top of a loop checking foreign keys */
    int addrOk;            /* Jump here if the key is OK */
    int *aiCols;           /* child to parent column mapping */


    regResult = pParse->nMem+1;
    pParse->nMem += 4;
    regKey = ++pParse->nMem;
    regRow = ++pParse->nMem;


    sqlite3CodeVerifySchema(pParse, iDb);
    k = sqliteHashFirst(&db->aDb[iDb].pSchema->tblHash);
    while( k ){
      if( zRight ){
        pTab = sqlite3LocateTable(pParse, 0, zRight, zDb);
        k = 0;
      }else{
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
  case PragTyp_EST_COUNT: {
    Index *pIdx;
    Table *pTab = 0;
    Pgno iRoot = 0;
    const char *zName = 0;
    int regResult;
    double r;
    static const char *azCol[] = { "est" };
    if( (pIdx = sqlite3FindIndex(db, zRight, zDb))!=0 ){
      iRoot = pIdx->tnum;
      zName = pIdx->zName;
    }else if( (pTab = sqlite3FindTable(db, zRight, zDb))!=0 ){
      zName = pTab->zName;
      if( HasRowid(pTab) ){
        iRoot = pTab->tnum;
      }else{
        pIdx = sqlite3PrimaryKeyIndex(pTab);
        iRoot = pIdx->tnum;
      }
    }else{
      break;
    }
    sqlite3TableLock(pParse, iDb, iRoot, 0, zName);
    regResult = ++pParse->nMem;
    setAllColumnNames(v, 1, azCol);
    if( pValues->nId>=2 ){
      const char *z = pValues->a[1].zName;
      sqlite3AtoF(z, &r, sqlite3Strlen30(z), SQLITE_UTF8);
    }else{
      r = 0.5;
    }
    if( r<0.0 ) r = 0.0;







<
















<







1375
1376
1377
1378
1379
1380
1381

1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397

1398
1399
1400
1401
1402
1403
1404
  case PragTyp_EST_COUNT: {
    Index *pIdx;
    Table *pTab = 0;
    Pgno iRoot = 0;
    const char *zName = 0;
    int regResult;
    double r;

    if( (pIdx = sqlite3FindIndex(db, zRight, zDb))!=0 ){
      iRoot = pIdx->tnum;
      zName = pIdx->zName;
    }else if( (pTab = sqlite3FindTable(db, zRight, zDb))!=0 ){
      zName = pTab->zName;
      if( HasRowid(pTab) ){
        iRoot = pTab->tnum;
      }else{
        pIdx = sqlite3PrimaryKeyIndex(pTab);
        iRoot = pIdx->tnum;
      }
    }else{
      break;
    }
    sqlite3TableLock(pParse, iDb, iRoot, 0, zName);
    regResult = ++pParse->nMem;

    if( pValues->nId>=2 ){
      const char *z = pValues->a[1].zName;
      sqlite3AtoF(z, &r, sqlite3Strlen30(z), SQLITE_UTF8);
    }else{
      r = 0.5;
    }
    if( r<0.0 ) r = 0.0;
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
    ** of all attached databases.  */
    assert( iDb>=0 );
    assert( iDb==0 || pId2->z );
    if( pId2->z==0 ) iDb = -1;

    /* Initialize the VDBE program */
    pParse->nMem = 6;
    setOneColumnName(v, "integrity_check");

    /* Set the maximum error count */
    mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
    if( zRight ){
      sqlite3GetInt32(zRight, &mxErr);
      if( mxErr<=0 ){
        mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;







<







1517
1518
1519
1520
1521
1522
1523

1524
1525
1526
1527
1528
1529
1530
    ** of all attached databases.  */
    assert( iDb>=0 );
    assert( iDb==0 || pId2->z );
    if( pId2->z==0 ) iDb = -1;

    /* Initialize the VDBE program */
    pParse->nMem = 6;


    /* Set the maximum error count */
    mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
    if( zRight ){
      sqlite3GetInt32(zRight, &mxErr);
      if( mxErr<=0 ){
        mxErr = SQLITE_INTEGRITY_CHECK_ERROR_MAX;
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
    };
    const struct EncName *pEnc;
    if( !zRight ){    /* "PRAGMA encoding" */
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;
      assert( encnames[SQLITE_UTF8].enc==SQLITE_UTF8 );
      assert( encnames[SQLITE_UTF16LE].enc==SQLITE_UTF16LE );
      assert( encnames[SQLITE_UTF16BE].enc==SQLITE_UTF16BE );
      returnSingleText(v, "encoding", encnames[ENC(pParse->db)].zName);
    }else{                        /* "PRAGMA encoding = XXX" */
      /* Only change the value of sqlite.enc if the database handle is not
      ** initialized. If the main database exists, the new sqlite.enc value
      ** will be overwritten when the schema is next loaded. If it does not
      ** already exists, it will be created to use the new encoding value.
      */
      if( 







|







1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
    };
    const struct EncName *pEnc;
    if( !zRight ){    /* "PRAGMA encoding" */
      if( sqlite3ReadSchema(pParse) ) goto pragma_out;
      assert( encnames[SQLITE_UTF8].enc==SQLITE_UTF8 );
      assert( encnames[SQLITE_UTF16LE].enc==SQLITE_UTF16LE );
      assert( encnames[SQLITE_UTF16BE].enc==SQLITE_UTF16BE );
      returnSingleText(v, encnames[ENC(pParse->db)].zName);
    }else{                        /* "PRAGMA encoding = XXX" */
      /* Only change the value of sqlite.enc if the database handle is not
      ** initialized. If the main database exists, the new sqlite.enc value
      ** will be overwritten when the schema is next loaded. If it does not
      ** already exists, it will be created to use the new encoding value.
      */
      if( 
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
  **
  ** The user-version is not used internally by SQLite. It may be used by
  ** applications for any purpose.
  */
  case PragTyp_HEADER_VALUE: {
    int iCookie = pPragma->iArg;  /* Which cookie to read or write */
    sqlite3VdbeUsesBtree(v, iDb);
    if( zRight && (pPragma->mPragFlag & PragFlag_ReadOnly)==0 ){
      /* Write the specified cookie value */
      static const VdbeOpList setCookie[] = {
        { OP_Transaction,    0,  1,  0},    /* 0 */
        { OP_SetCookie,      0,  0,  0},    /* 1 */
      };
      VdbeOp *aOp;
      sqlite3VdbeVerifyNoMallocRequired(v, ArraySize(setCookie));







|







1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
  **
  ** The user-version is not used internally by SQLite. It may be used by
  ** applications for any purpose.
  */
  case PragTyp_HEADER_VALUE: {
    int iCookie = pPragma->iArg;  /* Which cookie to read or write */
    sqlite3VdbeUsesBtree(v, iDb);
    if( zRight && (pPragma->mPragFlg & PragFlg_ReadOnly)==0 ){
      /* Write the specified cookie value */
      static const VdbeOpList setCookie[] = {
        { OP_Transaction,    0,  1,  0},    /* 0 */
        { OP_SetCookie,      0,  0,  0},    /* 1 */
      };
      VdbeOp *aOp;
      sqlite3VdbeVerifyNoMallocRequired(v, ArraySize(setCookie));
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
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
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
      VdbeOp *aOp;
      sqlite3VdbeVerifyNoMallocRequired(v, ArraySize(readCookie));
      aOp = sqlite3VdbeAddOpList(v, ArraySize(readCookie),readCookie,0);
      if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
      aOp[0].p1 = iDb;
      aOp[1].p1 = iDb;
      aOp[1].p3 = iCookie;
      sqlite3VdbeSetNumCols(v, 1);
      sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLeft, SQLITE_TRANSIENT);
      sqlite3VdbeReusable(v);
    }
  }
  break;
#endif /* SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS */

#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
  /*
  **   PRAGMA compile_options
  **
  ** Return the names of all compile-time options used in this build,
  ** one option per row.
  */
  case PragTyp_COMPILE_OPTIONS: {
    int i = 0;
    const char *zOpt;
    pParse->nMem = 1;
    setOneColumnName(v, "compile_option");
    while( (zOpt = sqlite3_compileoption_get(i++))!=0 ){
      sqlite3VdbeLoadString(v, 1, zOpt);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    }
    sqlite3VdbeReusable(v);
  }
  break;
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

#ifndef SQLITE_OMIT_WAL
  /*
  **   PRAGMA [schema.]wal_checkpoint = passive|full|restart|truncate
  **
  ** Checkpoint the database.
  */
  case PragTyp_WAL_CHECKPOINT: {
    static const char *azCol[] = { "busy", "log", "checkpointed" };
    int iBt = (pId2->z?iDb:SQLITE_MAX_ATTACHED);
    int eMode = SQLITE_CHECKPOINT_PASSIVE;
    if( zRight ){
      if( sqlite3StrICmp(zRight, "full")==0 ){
        eMode = SQLITE_CHECKPOINT_FULL;
      }else if( sqlite3StrICmp(zRight, "restart")==0 ){
        eMode = SQLITE_CHECKPOINT_RESTART;
      }else if( sqlite3StrICmp(zRight, "truncate")==0 ){
        eMode = SQLITE_CHECKPOINT_TRUNCATE;
      }
    }
    setAllColumnNames(v, 3, azCol);  assert( 3==ArraySize(azCol) );
    pParse->nMem = 3;
    sqlite3VdbeAddOp3(v, OP_Checkpoint, iBt, eMode, 1);
    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
  }
  break;

  /*
  **   PRAGMA wal_autocheckpoint
  **   PRAGMA wal_autocheckpoint = N
  **
  ** Configure a database connection to automatically checkpoint a database
  ** after accumulating N frames in the log. Or query for the current value
  ** of N.
  */
  case PragTyp_WAL_AUTOCHECKPOINT: {
    if( zRight ){
      sqlite3_wal_autocheckpoint(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(v, "wal_autocheckpoint", 
       db->xWalCallback==sqlite3WalDefaultHook ? 
           SQLITE_PTR_TO_INT(db->pWalArg) : 0);
  }
  break;
#endif

  /*







<
<

















<
















<











<


















|







1859
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      VdbeOp *aOp;
      sqlite3VdbeVerifyNoMallocRequired(v, ArraySize(readCookie));
      aOp = sqlite3VdbeAddOpList(v, ArraySize(readCookie),readCookie,0);
      if( ONLY_IF_REALLOC_STRESS(aOp==0) ) break;
      aOp[0].p1 = iDb;
      aOp[1].p1 = iDb;
      aOp[1].p3 = iCookie;


      sqlite3VdbeReusable(v);
    }
  }
  break;
#endif /* SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS */

#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
  /*
  **   PRAGMA compile_options
  **
  ** Return the names of all compile-time options used in this build,
  ** one option per row.
  */
  case PragTyp_COMPILE_OPTIONS: {
    int i = 0;
    const char *zOpt;
    pParse->nMem = 1;

    while( (zOpt = sqlite3_compileoption_get(i++))!=0 ){
      sqlite3VdbeLoadString(v, 1, zOpt);
      sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 1);
    }
    sqlite3VdbeReusable(v);
  }
  break;
#endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */

#ifndef SQLITE_OMIT_WAL
  /*
  **   PRAGMA [schema.]wal_checkpoint = passive|full|restart|truncate
  **
  ** Checkpoint the database.
  */
  case PragTyp_WAL_CHECKPOINT: {

    int iBt = (pId2->z?iDb:SQLITE_MAX_ATTACHED);
    int eMode = SQLITE_CHECKPOINT_PASSIVE;
    if( zRight ){
      if( sqlite3StrICmp(zRight, "full")==0 ){
        eMode = SQLITE_CHECKPOINT_FULL;
      }else if( sqlite3StrICmp(zRight, "restart")==0 ){
        eMode = SQLITE_CHECKPOINT_RESTART;
      }else if( sqlite3StrICmp(zRight, "truncate")==0 ){
        eMode = SQLITE_CHECKPOINT_TRUNCATE;
      }
    }

    pParse->nMem = 3;
    sqlite3VdbeAddOp3(v, OP_Checkpoint, iBt, eMode, 1);
    sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 3);
  }
  break;

  /*
  **   PRAGMA wal_autocheckpoint
  **   PRAGMA wal_autocheckpoint = N
  **
  ** Configure a database connection to automatically checkpoint a database
  ** after accumulating N frames in the log. Or query for the current value
  ** of N.
  */
  case PragTyp_WAL_AUTOCHECKPOINT: {
    if( zRight ){
      sqlite3_wal_autocheckpoint(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(v, 
       db->xWalCallback==sqlite3WalDefaultHook ? 
           SQLITE_PTR_TO_INT(db->pWalArg) : 0);
  }
  break;
#endif

  /*
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  ** disables the timeout.
  */
  /*case PragTyp_BUSY_TIMEOUT*/ default: {
    assert( pPragma->ePragTyp==PragTyp_BUSY_TIMEOUT );
    if( zRight ){
      sqlite3_busy_timeout(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(v, "timeout",  db->busyTimeout);
    break;
  }

  /*
  **   PRAGMA soft_heap_limit
  **   PRAGMA soft_heap_limit = N
  **
  ** IMPLEMENTATION-OF: R-26343-45930 This pragma invokes the
  ** sqlite3_soft_heap_limit64() interface with the argument N, if N is
  ** specified and is a non-negative integer.
  ** IMPLEMENTATION-OF: R-64451-07163 The soft_heap_limit pragma always
  ** returns the same integer that would be returned by the
  ** sqlite3_soft_heap_limit64(-1) C-language function.
  */
  case PragTyp_SOFT_HEAP_LIMIT: {
    sqlite3_int64 N;
    if( zRight && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK ){
      sqlite3_soft_heap_limit64(N);
    }
    returnSingleInt(v, "soft_heap_limit",  sqlite3_soft_heap_limit64(-1));
    break;
  }

  /*
  **   PRAGMA threads
  **   PRAGMA threads = N
  **
  ** Configure the maximum number of worker threads.  Return the new
  ** maximum, which might be less than requested.
  */
  case PragTyp_THREADS: {
    sqlite3_int64 N;
    if( zRight
     && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK
     && N>=0
    ){
      sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, (int)(N&0x7fffffff));
    }
    returnSingleInt(v, "threads",
                    sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, -1));
    break;
  }

#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
  /*
  ** Report the current state of file logs for all databases
  */
  case PragTyp_LOCK_STATUS: {
    static const char *const azLockName[] = {
      "unlocked", "shared", "reserved", "pending", "exclusive"
    };
    static const char *azCol[] = { "database", "status" };
    int i;
    setAllColumnNames(v, 2, azCol); assert( 2==ArraySize(azCol) );
    pParse->nMem = 2;
    for(i=0; i<db->nDb; i++){
      Btree *pBt;
      const char *zState = "unknown";
      int j;
      if( db->aDb[i].zDbSName==0 ) continue;
      pBt = db->aDb[i].pBt;







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<

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  ** disables the timeout.
  */
  /*case PragTyp_BUSY_TIMEOUT*/ default: {
    assert( pPragma->ePragTyp==PragTyp_BUSY_TIMEOUT );
    if( zRight ){
      sqlite3_busy_timeout(db, sqlite3Atoi(zRight));
    }
    returnSingleInt(v, db->busyTimeout);
    break;
  }

  /*
  **   PRAGMA soft_heap_limit
  **   PRAGMA soft_heap_limit = N
  **
  ** IMPLEMENTATION-OF: R-26343-45930 This pragma invokes the
  ** sqlite3_soft_heap_limit64() interface with the argument N, if N is
  ** specified and is a non-negative integer.
  ** IMPLEMENTATION-OF: R-64451-07163 The soft_heap_limit pragma always
  ** returns the same integer that would be returned by the
  ** sqlite3_soft_heap_limit64(-1) C-language function.
  */
  case PragTyp_SOFT_HEAP_LIMIT: {
    sqlite3_int64 N;
    if( zRight && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK ){
      sqlite3_soft_heap_limit64(N);
    }
    returnSingleInt(v, sqlite3_soft_heap_limit64(-1));
    break;
  }

  /*
  **   PRAGMA threads
  **   PRAGMA threads = N
  **
  ** Configure the maximum number of worker threads.  Return the new
  ** maximum, which might be less than requested.
  */
  case PragTyp_THREADS: {
    sqlite3_int64 N;
    if( zRight
     && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK
     && N>=0
    ){
      sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, (int)(N&0x7fffffff));
    }

    returnSingleInt(v, sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, -1));
    break;
  }

#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
  /*
  ** Report the current state of file logs for all databases
  */
  case PragTyp_LOCK_STATUS: {
    static const char *const azLockName[] = {
      "unlocked", "shared", "reserved", "pending", "exclusive"
    };

    int i;

    pParse->nMem = 2;
    for(i=0; i<db->nDb; i++){
      Btree *pBt;
      const char *zState = "unknown";
      int j;
      if( db->aDb[i].zDbSName==0 ) continue;
      pBt = db->aDb[i].pBt;
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  } /* End of the PRAGMA switch */

pragma_out:
  sqlite3DbFree(db, zLeft);
  sqlite3IdListDelete(db, pValues);
}















































































































































































































































































































#endif /* SQLITE_OMIT_PRAGMA */







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  } /* End of the PRAGMA switch */

pragma_out:
  sqlite3DbFree(db, zLeft);
  sqlite3IdListDelete(db, pValues);
}
#ifndef SQLITE_OMIT_VIRTUALTABLE
/*****************************************************************************
** Implementation of an eponymous virtual table that runs a pragma.
**
*/
typedef struct PragmaVtab PragmaVtab;
typedef struct PragmaVtabCursor PragmaVtabCursor;
struct PragmaVtab {
  sqlite3_vtab base;        /* Base class.  Must be first */
  sqlite3 *db;              /* The database connection to which it belongs */
  const PragmaName *pName;  /* Name of the pragma */
  u8 nHidden;               /* Number of hidden columns */
  u8 iHidden;               /* Index of the first hidden column */
};
struct PragmaVtabCursor {
  sqlite3_vtab_cursor base; /* Base class.  Must be first */
  sqlite3_stmt *pPragma;    /* The pragma statement to run */
  sqlite_int64 iRowid;      /* Current rowid */
  char *azArg[2];           /* Value of the argument and schema */
};

/* 
** Pragma virtual table module xConnect method.
*/
static int pragmaVtabConnect(
  sqlite3 *db,
  void *pAux,
  int argc, const char *const*argv,
  sqlite3_vtab **ppVtab,
  char **pzErr
){
  const PragmaName *pPragma = (const PragmaName*)pAux;
  PragmaVtab *pTab = 0;
  int rc;
  int i, j;
  char cSep = '(';
  StrAccum acc;
  char zBuf[200];

  sqlite3StrAccumInit(&acc, 0, zBuf, sizeof(zBuf), 0);
  sqlite3StrAccumAppendAll(&acc, "CREATE TABLE x");
  for(i=0, j=pPragma->iPragCName; i<pPragma->nPragCName; i++, j++){
    sqlite3XPrintf(&acc, "%c\"%s\"", cSep, pragCName[j]);
    cSep = ',';
  }
  if( i==0 ){
    sqlite3XPrintf(&acc, "(\"%s\"", pPragma->zName);
    cSep = ',';
    i++;
  }
  j = 0;
  if( pPragma->mPragFlg & PragFlg_Result1 ){
    sqlite3StrAccumAppendAll(&acc, ",arg HIDDEN");
    j++;
  }
  if( pPragma->mPragFlg & (PragFlg_SchemaOpt|PragFlg_SchemaReq) ){
    sqlite3StrAccumAppendAll(&acc, ",schema HIDDEN");
    j++;
  }
  sqlite3StrAccumAppend(&acc, ")", 1);
  sqlite3StrAccumFinish(&acc);
  assert( strlen(zBuf) < sizeof(zBuf)-1 );
  rc = sqlite3_declare_vtab(db, zBuf);
  if( rc==SQLITE_OK ){
    pTab = (PragmaVtab*)sqlite3_malloc(sizeof(PragmaVtab));
    if( pTab==0 ){
      rc = SQLITE_NOMEM;
    }else{
      memset(pTab, 0, sizeof(PragmaVtab));
      pTab->pName = pPragma;
      pTab->db = db;
      pTab->iHidden = i;
      pTab->nHidden = j;
    }
  }else{
    *pzErr = sqlite3_mprintf("%s", sqlite3_errmsg(db));
  }

  *ppVtab = (sqlite3_vtab*)pTab;
  return rc;
}

/* 
** Pragma virtual table module xDisconnect method.
*/
static int pragmaVtabDisconnect(sqlite3_vtab *pVtab){
  PragmaVtab *pTab = (PragmaVtab*)pVtab;
  sqlite3_free(pTab);
  return SQLITE_OK;
}

/* Figure out the best index to use to search a pragma virtual table.
**
** There are not really any index choices.  But we want to encourage the
** query planner to give == constraints on as many hidden parameters as
** possible, and especially on the first hidden parameter.  So return a
** high cost if hidden parameters are unconstrained.
*/
static int pragmaVtabBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
  PragmaVtab *pTab = (PragmaVtab*)tab;
  const struct sqlite3_index_constraint *pConstraint;
  int i, j;
  int seen[2];

  pIdxInfo->estimatedCost = (double)1;
  if( pTab->nHidden==0 ){ return SQLITE_OK; }
  pConstraint = pIdxInfo->aConstraint;
  seen[0] = 0;
  seen[1] = 0;
  for(i=0; i<pIdxInfo->nConstraint; i++, pConstraint++){
    if( pConstraint->usable==0 ) continue;
    if( pConstraint->op!=SQLITE_INDEX_CONSTRAINT_EQ ) continue;
    if( pConstraint->iColumn < pTab->iHidden ) continue;
    j = pConstraint->iColumn - pTab->iHidden;
    assert( j < 2 );
    seen[j] = i+1;
  }
  if( seen[0]==0 ){
    pIdxInfo->estimatedCost = (double)2147483647;
    pIdxInfo->estimatedRows = 2147483647;
    return SQLITE_OK;
  }
  j = seen[0]-1;
  pIdxInfo->aConstraintUsage[j].argvIndex = 1;
  pIdxInfo->aConstraintUsage[j].omit = 1;
  if( seen[1]==0 ) return SQLITE_OK;
  pIdxInfo->estimatedCost = (double)20;
  pIdxInfo->estimatedRows = 20;
  j = seen[1]-1;
  pIdxInfo->aConstraintUsage[j].argvIndex = 2;
  pIdxInfo->aConstraintUsage[j].omit = 1;
  return SQLITE_OK;
}

/* Create a new cursor for the pragma virtual table */
static int pragmaVtabOpen(sqlite3_vtab *pVtab, sqlite3_vtab_cursor **ppCursor){
  PragmaVtabCursor *pCsr;
  pCsr = (PragmaVtabCursor*)sqlite3_malloc(sizeof(*pCsr));
  if( pCsr==0 ) return SQLITE_NOMEM;
  memset(pCsr, 0, sizeof(PragmaVtabCursor));
  pCsr->base.pVtab = pVtab;
  *ppCursor = &pCsr->base;
  return SQLITE_OK;
}

/* Clear all content from pragma virtual table cursor. */
static void pragmaVtabCursorClear(PragmaVtabCursor *pCsr){
  int i;
  sqlite3_finalize(pCsr->pPragma);
  pCsr->pPragma = 0;
  for(i=0; i<ArraySize(pCsr->azArg); i++){
    sqlite3_free(pCsr->azArg[i]);
    pCsr->azArg[i] = 0;
  }
}

/* Close a pragma virtual table cursor */
static int pragmaVtabClose(sqlite3_vtab_cursor *cur){
  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)cur;
  pragmaVtabCursorClear(pCsr);
  sqlite3_free(pCsr);
  return SQLITE_OK;
}

/* Advance the pragma virtual table cursor to the next row */
static int pragmaVtabNext(sqlite3_vtab_cursor *pVtabCursor){
  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
  int rc = SQLITE_OK;

  /* Increment the xRowid value */
  pCsr->iRowid++;
  assert( pCsr->pPragma );
  if( SQLITE_ROW!=sqlite3_step(pCsr->pPragma) ){
    rc = sqlite3_finalize(pCsr->pPragma);
    pCsr->pPragma = 0;
    pragmaVtabCursorClear(pCsr);
  }
  return rc;
}

/* 
** Pragma virtual table module xFilter method.
*/
static int pragmaVtabFilter(
  sqlite3_vtab_cursor *pVtabCursor, 
  int idxNum, const char *idxStr,
  int argc, sqlite3_value **argv
){
  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
  PragmaVtab *pTab = (PragmaVtab*)(pVtabCursor->pVtab);
  int rc;
  int i, j;
  StrAccum acc;
  char *zSql;

  pragmaVtabCursorClear(pCsr);
  j = (pTab->pName->mPragFlg & PragFlg_Result1)!=0 ? 0 : 1;
  for(i=0; i<argc; i++, j++){
    assert( j<ArraySize(pCsr->azArg) );
    pCsr->azArg[j] = sqlite3_mprintf("%s", sqlite3_value_text(argv[i]));
    if( pCsr->azArg[j]==0 ){
      return SQLITE_NOMEM;
    }
  }
  sqlite3StrAccumInit(&acc, 0, 0, 0, pTab->db->aLimit[SQLITE_LIMIT_SQL_LENGTH]);
  sqlite3StrAccumAppendAll(&acc, "PRAGMA ");
  if( pCsr->azArg[1] ){
    sqlite3XPrintf(&acc, "%Q.", pCsr->azArg[1]);
  }
  sqlite3StrAccumAppendAll(&acc, pTab->pName->zName);
  if( pCsr->azArg[0] ){
    sqlite3XPrintf(&acc, "=%Q", pCsr->azArg[0]);
  }
  zSql = sqlite3StrAccumFinish(&acc);
  if( zSql==0 ) return SQLITE_NOMEM;
  rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pPragma, 0);
  sqlite3_free(zSql);
  if( rc!=SQLITE_OK ){
    pTab->base.zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(pTab->db));
    return rc;
  }
  return pragmaVtabNext(pVtabCursor);
}

/*
** Pragma virtual table module xEof method.
*/
static int pragmaVtabEof(sqlite3_vtab_cursor *pVtabCursor){
  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
  return (pCsr->pPragma==0);
}

/* The xColumn method simply returns the corresponding column from
** the PRAGMA.  
*/
static int pragmaVtabColumn(
  sqlite3_vtab_cursor *pVtabCursor, 
  sqlite3_context *ctx, 
  int i
){
  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
  PragmaVtab *pTab = (PragmaVtab*)(pVtabCursor->pVtab);
  if( i<pTab->iHidden ){
    sqlite3_result_value(ctx, sqlite3_column_value(pCsr->pPragma, i));
  }else{
    sqlite3_result_text(ctx, pCsr->azArg[i-pTab->iHidden],-1,SQLITE_TRANSIENT);
  }
  return SQLITE_OK;
}

/* 
** Pragma virtual table module xRowid method.
*/
static int pragmaVtabRowid(sqlite3_vtab_cursor *pVtabCursor, sqlite_int64 *p){
  PragmaVtabCursor *pCsr = (PragmaVtabCursor*)pVtabCursor;
  *p = pCsr->iRowid;
  return SQLITE_OK;
}

/* The pragma virtual table object */
static const sqlite3_module pragmaVtabModule = {
  0,                           /* iVersion */
  0,                           /* xCreate - create a table */
  pragmaVtabConnect,           /* xConnect - connect to an existing table */
  pragmaVtabBestIndex,         /* xBestIndex - Determine search strategy */
  pragmaVtabDisconnect,        /* xDisconnect - Disconnect from a table */
  0,                           /* xDestroy - Drop a table */
  pragmaVtabOpen,              /* xOpen - open a cursor */
  pragmaVtabClose,             /* xClose - close a cursor */
  pragmaVtabFilter,            /* xFilter - configure scan constraints */
  pragmaVtabNext,              /* xNext - advance a cursor */
  pragmaVtabEof,               /* xEof */
  pragmaVtabColumn,            /* xColumn - read data */
  pragmaVtabRowid,             /* xRowid - read data */
  0,                           /* xUpdate - write data */
  0,                           /* xBegin - begin transaction */
  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.
*/
Module *sqlite3PragmaVtabRegister(sqlite3 *db, const char *zName){
  const PragmaName *pName;
  assert( sqlite3_strnicmp(zName, "pragma_", 7)==0 );
  pName = pragmaLocate(zName+7);
  if( pName==0 ) return 0;
  if( (pName->mPragFlg & (PragFlg_Result0|PragFlg_Result1))==0 ) return 0;
  assert( sqlite3HashFind(&db->aModule, zName)==0 );
  return sqlite3VtabCreateModule(db, zName, &pragmaVtabModule, (void*)pName, 0);
}

#endif /* SQLITE_OMIT_VIRTUALTABLE */

#endif /* SQLITE_OMIT_PRAGMA */
Changes to src/pragma.h.
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/* DO NOT EDIT!
** This file is automatically generated by the script at
** ../tool/mkpragmatab.tcl.  To update the set of pragmas, edit
** that script and rerun it.
*/


#define PragTyp_HEADER_VALUE                   0
#define PragTyp_AUTO_VACUUM                    1
#define PragTyp_FLAG                           2
#define PragTyp_BTREE_SAMPLE                   3
#define PragTyp_BUSY_TIMEOUT                   4
#define PragTyp_CACHE_SIZE                     5
#define PragTyp_CACHE_SPILL                    6





>
>







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/* DO NOT EDIT!
** This file is automatically generated by the script at
** ../tool/mkpragmatab.tcl.  To update the set of pragmas, edit
** that script and rerun it.
*/

/* The various pragma types */
#define PragTyp_HEADER_VALUE                   0
#define PragTyp_AUTO_VACUUM                    1
#define PragTyp_FLAG                           2
#define PragTyp_BTREE_SAMPLE                   3
#define PragTyp_BUSY_TIMEOUT                   4
#define PragTyp_CACHE_SIZE                     5
#define PragTyp_CACHE_SPILL                    6
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#define PragTyp_WAL_CHECKPOINT                38
#define PragTyp_ACTIVATE_EXTENSIONS           39
#define PragTyp_HEXKEY                        40
#define PragTyp_KEY                           41
#define PragTyp_REKEY                         42
#define PragTyp_LOCK_STATUS                   43
#define PragTyp_PARSER_TRACE                  44
#define PragFlag_NeedSchema           0x01



#define PragFlag_ReadOnly             0x02




static const struct sPragmaNames {




  const char *const zName;  /* Name of pragma */
  u8 ePragTyp;              /* PragTyp_XXX value */
  u8 mPragFlag;             /* Zero or more PragFlag_XXX values */
  u32 iArg;                 /* Extra argument */


} aPragmaNames[] = {
#if defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)
  { /* zName:     */ "activate_extensions",
    /* ePragTyp:  */ PragTyp_ACTIVATE_EXTENSIONS,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },

#endif
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
  { /* zName:     */ "application_id",
    /* ePragTyp:  */ PragTyp_HEADER_VALUE,

    /* ePragFlag: */ 0,
    /* iArg:      */ BTREE_APPLICATION_ID },
#endif
#if !defined(SQLITE_OMIT_AUTOVACUUM)

  { /* zName:     */ "auto_vacuum",
    /* ePragTyp:  */ PragTyp_AUTO_VACUUM,
    /* ePragFlag: */ PragFlag_NeedSchema,


    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_AUTOMATIC_INDEX)
  { /* zName:     */ "automatic_index",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,
    /* iArg:      */ SQLITE_AutoIndex },
#endif
#endif
  { /* zName:     */ "btree_sample",
    /* ePragTyp:  */ PragTyp_BTREE_SAMPLE,
    /* ePragFlag: */ PragFlag_NeedSchema,
    /* iArg:      */ 0 },
  { /* zName:     */ "busy_timeout",
    /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
    /* ePragFlag: */ 0,
    /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
  { /* zName:     */ "cache_size",
    /* ePragTyp:  */ PragTyp_CACHE_SIZE,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },





#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "cache_spill",

    /* ePragTyp:  */ PragTyp_CACHE_SPILL,

    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
  { /* zName:     */ "case_sensitive_like",
    /* ePragTyp:  */ PragTyp_CASE_SENSITIVE_LIKE,
    /* ePragFlag: */ 0,
    /* iArg:      */ 0 },

  { /* zName:     */ "cell_size_check",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_CellSizeCk },

#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "checkpoint_fullfsync",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_CkptFullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
  { /* zName:     */ "collation_list",
    /* ePragTyp:  */ PragTyp_COLLATION_LIST,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)

  { /* zName:     */ "compile_options",
    /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)

  { /* zName:     */ "count_changes",
    /* ePragTyp:  */ PragTyp_FLAG,





    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_CountRows },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN
  { /* zName:     */ "data_store_directory",
    /* ePragTyp:  */ PragTyp_DATA_STORE_DIRECTORY,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
  { /* zName:     */ "data_version",
    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
    /* ePragFlag: */ PragFlag_ReadOnly,

    /* iArg:      */ BTREE_DATA_VERSION },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
  { /* zName:     */ "database_list",
    /* ePragTyp:  */ PragTyp_DATABASE_LIST,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif





#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)
  { /* zName:     */ "default_cache_size",
    /* ePragTyp:  */ PragTyp_DEFAULT_CACHE_SIZE,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* 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,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_DeferFKs },
#endif






#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "empty_result_callbacks",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_NullCallback },
#endif
#if !defined(SQLITE_OMIT_UTF16)
  { /* zName:     */ "encoding",
    /* ePragTyp:  */ PragTyp_ENCODING,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif

  { /* zName:     */ "est_count",
    /* ePragTyp:  */ PragTyp_EST_COUNT,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },

#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
  { /* zName:     */ "foreign_key_check",
    /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FOREIGN_KEY)
  { /* zName:     */ "foreign_key_list",
    /* ePragTyp:  */ PragTyp_FOREIGN_KEY_LIST,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* 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,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_ForeignKeys },
#endif
#endif
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
  { /* zName:     */ "freelist_count",
    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
    /* ePragFlag: */ PragFlag_ReadOnly,

    /* iArg:      */ BTREE_FREE_PAGE_COUNT },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "full_column_names",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_FullColNames },

  { /* zName:     */ "fullfsync",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_FullFSync },
#endif
#if defined(SQLITE_HAS_CODEC)
  { /* zName:     */ "hexkey",
    /* ePragTyp:  */ PragTyp_HEXKEY,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },


  { /* zName:     */ "hexrekey",
    /* ePragTyp:  */ PragTyp_HEXKEY,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_CHECK)
  { /* zName:     */ "ignore_check_constraints",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_IgnoreChecks },

#endif
#endif
#if !defined(SQLITE_OMIT_AUTOVACUUM)
  { /* zName:     */ "incremental_vacuum",
    /* ePragTyp:  */ PragTyp_INCREMENTAL_VACUUM,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)





  { /* zName:     */ "index_info",
    /* ePragTyp:  */ PragTyp_INDEX_INFO,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },


  { /* zName:     */ "index_list",
    /* ePragTyp:  */ PragTyp_INDEX_LIST,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
  { /* zName:     */ "index_xinfo",
    /* ePragTyp:  */ PragTyp_INDEX_INFO,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 1 },
#endif
#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)

  { /* zName:     */ "integrity_check",








    /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
  { /* zName:     */ "journal_mode",
    /* ePragTyp:  */ PragTyp_JOURNAL_MODE,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
  { /* zName:     */ "journal_size_limit",
    /* ePragTyp:  */ PragTyp_JOURNAL_SIZE_LIMIT,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if defined(SQLITE_HAS_CODEC)
  { /* zName:     */ "key",
    /* ePragTyp:  */ PragTyp_KEY,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "legacy_file_format",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_LegacyFileFmt },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
  { /* zName:     */ "lock_proxy_file",
    /* ePragTyp:  */ PragTyp_LOCK_PROXY_FILE,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
  { /* zName:     */ "lock_status",
    /* ePragTyp:  */ PragTyp_LOCK_STATUS,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
  { /* zName:     */ "locking_mode",
    /* ePragTyp:  */ PragTyp_LOCKING_MODE,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },


  { /* zName:     */ "max_page_count",
    /* ePragTyp:  */ PragTyp_PAGE_COUNT,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },


  { /* zName:     */ "mmap_size",
    /* ePragTyp:  */ PragTyp_MMAP_SIZE,
    /* ePragFlag: */ 0,
    /* iArg:      */ 0 },
  { /* zName:     */ "page_count",
    /* ePragTyp:  */ PragTyp_PAGE_COUNT,
    /* ePragFlag: */ PragFlag_NeedSchema,
    /* iArg:      */ 0 },


  { /* zName:     */ "page_size",
    /* ePragTyp:  */ PragTyp_PAGE_SIZE,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_PARSER_TRACE)
  { /* zName:     */ "parser_trace",
    /* ePragTyp:  */ PragTyp_PARSER_TRACE,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)





  { /* zName:     */ "query_only",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_QueryOnly },
#endif
#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)





  { /* zName:     */ "quick_check",
    /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "read_uncommitted",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_ReadUncommitted },


  { /* zName:     */ "recursive_triggers",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_RecTriggers },
#endif
#if defined(SQLITE_HAS_CODEC)
  { /* zName:     */ "rekey",
    /* ePragTyp:  */ PragTyp_REKEY,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "reverse_unordered_selects",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_ReverseOrder },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
  { /* zName:     */ "schema_version",
    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
    /* ePragFlag: */ 0,

    /* iArg:      */ BTREE_SCHEMA_VERSION },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
  { /* zName:     */ "secure_delete",
    /* ePragTyp:  */ PragTyp_SECURE_DELETE,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)





















  { /* zName:     */ "short_column_names",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_ShortColNames },
#endif
  { /* zName:     */ "shrink_memory",
    /* ePragTyp:  */ PragTyp_SHRINK_MEMORY,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
  { /* zName:     */ "soft_heap_limit",
    /* ePragTyp:  */ PragTyp_SOFT_HEAP_LIMIT,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if defined(SQLITE_DEBUG)
  { /* zName:     */ "sql_trace",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_SqlTrace },
#endif
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
  { /* zName:     */ "stats",
    /* ePragTyp:  */ PragTyp_STATS,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
  { /* zName:     */ "synchronous",
    /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
  { /* zName:     */ "table_info",
    /* ePragTyp:  */ PragTyp_TABLE_INFO,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
  { /* zName:     */ "temp_store",
    /* ePragTyp:  */ PragTyp_TEMP_STORE,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
  { /* zName:     */ "temp_store_directory",
    /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#endif
  { /* zName:     */ "threads",
    /* ePragTyp:  */ PragTyp_THREADS,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
  { /* zName:     */ "user_version",
    /* ePragTyp:  */ PragTyp_HEADER_VALUE,
    /* ePragFlag: */ 0,

    /* iArg:      */ BTREE_USER_VERSION },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if defined(SQLITE_DEBUG)
  { /* zName:     */ "vdbe_addoptrace",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_VdbeAddopTrace },
  { /* zName:     */ "vdbe_debug",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_SqlTrace|SQLITE_VdbeListing|SQLITE_VdbeTrace },
  { /* zName:     */ "vdbe_eqp",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_VdbeEQP },
  { /* zName:     */ "vdbe_listing",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_VdbeListing },
  { /* zName:     */ "vdbe_trace",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_VdbeTrace },
#endif
#endif
#if !defined(SQLITE_OMIT_WAL)
  { /* zName:     */ "wal_autocheckpoint",
    /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
    /* ePragFlag: */ 0,

    /* iArg:      */ 0 },
  { /* zName:     */ "wal_checkpoint",
    /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
    /* ePragFlag: */ PragFlag_NeedSchema,

    /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
  { /* zName:     */ "writable_schema",
    /* ePragTyp:  */ PragTyp_FLAG,
    /* ePragFlag: */ 0,

    /* iArg:      */ SQLITE_WriteSchema|SQLITE_RecoveryMode },
#endif
};
/* Number of pragmas: 62 on by default, 75 total. */







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#define PragTyp_WAL_CHECKPOINT                38
#define PragTyp_ACTIVATE_EXTENSIONS           39
#define PragTyp_HEXKEY                        40
#define PragTyp_KEY                           41
#define PragTyp_REKEY                         42
#define PragTyp_LOCK_STATUS                   43
#define PragTyp_PARSER_TRACE                  44

/* 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_ReadOnly   0x04 /* Read-only HEADER_VALUE */
#define PragFlg_Result0    0x08 /* Acts as query when no argument */
#define PragFlg_Result1    0x10 /* Acts as query when has one argument */
#define PragFlg_SchemaOpt  0x20 /* Schema restricts name search if present */
#define PragFlg_SchemaReq  0x40 /* 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 */ "table",       /* Used by: stats */
  /*   8 */ "index",      

  /*   9 */ "width",      
  /*  10 */ "height",     
  /*  11 */ "seqno",       /* Used by: index_info */
  /*  12 */ "cid",        
  /*  13 */ "name",       


  /*  14 */ "seqno",       /* Used by: index_xinfo */
  /*  15 */ "cid",        
  /*  16 */ "name",       
  /*  17 */ "desc",       
  /*  18 */ "coll",       
  /*  19 */ "key",        
  /*  20 */ "seq",         /* Used by: index_list */
  /*  21 */ "name",       
  /*  22 */ "unique",     
  /*  23 */ "origin",     
  /*  24 */ "partial",    
  /*  25 */ "seq",         /* Used by: database_list */
  /*  26 */ "name",       
  /*  27 */ "file",       
  /*  28 */ "seq",         /* Used by: collation_list */
  /*  29 */ "name",       
  /*  30 */ "id",          /* Used by: foreign_key_list */
  /*  31 */ "seq",        
  /*  32 */ "table",      
  /*  33 */ "from",       
  /*  34 */ "to",         
  /*  35 */ "on_update",  
  /*  36 */ "on_delete",  
  /*  37 */ "match",      
  /*  38 */ "table",       /* Used by: foreign_key_check */
  /*  39 */ "rowid",      
  /*  40 */ "parent",     
  /*  41 */ "fkid",       
  /*  42 */ "busy",        /* Used by: wal_checkpoint */
  /*  43 */ "log",        
  /*  44 */ "checkpointed",
  /*  45 */ "timeout",     /* Used by: busy_timeout */
  /*  46 */ "database",    /* Used by: lock_status */
  /*  47 */ "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,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
 {/* zName:     */ "application_id",
  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ BTREE_APPLICATION_ID },
#endif
#if !defined(SQLITE_OMIT_AUTOVACUUM)
 {/* zName:     */ "auto_vacuum",
  /* ePragTyp:  */ PragTyp_AUTO_VACUUM,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_AUTOMATIC_INDEX)
 {/* zName:     */ "automatic_index",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_AutoIndex },
#endif

#endif
 {/* zName:     */ "btree_sample",
  /* ePragTyp:  */ PragTyp_BTREE_SAMPLE,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "busy_timeout",
  /* ePragTyp:  */ PragTyp_BUSY_TIMEOUT,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 45, 1,
  /* iArg:      */ 0 },

#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "cache_size",
  /* ePragTyp:  */ PragTyp_CACHE_SIZE,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "cache_spill",
  /* ePragTyp:  */ PragTyp_CACHE_SPILL,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif

 {/* zName:     */ "case_sensitive_like",
  /* ePragTyp:  */ PragTyp_CASE_SENSITIVE_LIKE,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },

 {/* zName:     */ "cell_size_check",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_CellSizeCk },
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "checkpoint_fullfsync",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_CkptFullFSync },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

 {/* zName:     */ "collation_list",
  /* ePragTyp:  */ PragTyp_COLLATION_LIST,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 28, 2,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)
 {/* zName:     */ "compile_options",
  /* ePragTyp:  */ PragTyp_COMPILE_OPTIONS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "count_changes",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_CountRows },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN
 {/* zName:     */ "data_store_directory",
  /* ePragTyp:  */ PragTyp_DATA_STORE_DIRECTORY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
 {/* zName:     */ "data_version",
  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_ReadOnly,
  /* 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:  */ 25, 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,
  /* 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_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_DeferFKs },
#endif
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "empty_result_callbacks",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_NullCallback },
#endif
#if !defined(SQLITE_OMIT_UTF16)
 {/* zName:     */ "encoding",
  /* ePragTyp:  */ PragTyp_ENCODING,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
 {/* zName:     */ "est_count",
  /* ePragTyp:  */ PragTyp_EST_COUNT,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },

#if !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)
 {/* zName:     */ "foreign_key_check",
  /* ePragTyp:  */ PragTyp_FOREIGN_KEY_CHECK,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 38, 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:  */ 30, 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_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ForeignKeys },
#endif
#endif

#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
 {/* zName:     */ "freelist_count",
  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_ReadOnly,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ BTREE_FREE_PAGE_COUNT },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "full_column_names",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_FullColNames },
 {/* zName:     */ "fullfsync",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_FullFSync },
#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_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_IgnoreChecks },
#endif
#endif
#if !defined(SQLITE_OMIT_AUTOVACUUM)
 {/* zName:     */ "incremental_vacuum",
  /* ePragTyp:  */ PragTyp_INCREMENTAL_VACUUM,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_NoColumns,
  /* 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:  */ 11, 3,
  /* iArg:      */ 0 },
 {/* zName:     */ "index_list",
  /* ePragTyp:  */ PragTyp_INDEX_LIST,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 20, 5,
  /* iArg:      */ 0 },


 {/* zName:     */ "index_xinfo",
  /* ePragTyp:  */ PragTyp_INDEX_INFO,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result1|PragFlg_SchemaOpt,
  /* ColNames:  */ 14, 6,
  /* iArg:      */ 1 },
#endif
#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
 {/* zName:     */ "integrity_check",
  /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "journal_mode",
  /* ePragTyp:  */ PragTyp_JOURNAL_MODE,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },


 {/* zName:     */ "journal_size_limit",
  /* ePragTyp:  */ PragTyp_JOURNAL_SIZE_LIMIT,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* 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_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_LegacyFileFmt },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE
 {/* zName:     */ "lock_proxy_file",
  /* ePragTyp:  */ PragTyp_LOCK_PROXY_FILE,
  /* ePragFlg:  */ 0,


  /* ColNames:  */ 0, 0,

  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
 {/* zName:     */ "lock_status",
  /* ePragTyp:  */ PragTyp_LOCK_STATUS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 46, 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,
  /* iArg:      */ 0 },


 {/* zName:     */ "max_page_count",
  /* ePragTyp:  */ PragTyp_PAGE_COUNT,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "mmap_size",
  /* ePragTyp:  */ PragTyp_MMAP_SIZE,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },


 {/* zName:     */ "page_count",
  /* ePragTyp:  */ PragTyp_PAGE_COUNT,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "page_size",
  /* ePragTyp:  */ PragTyp_PAGE_SIZE,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_PARSER_TRACE)
 {/* zName:     */ "parser_trace",
  /* ePragTyp:  */ PragTyp_PARSER_TRACE,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "query_only",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_QueryOnly },
#endif
#if !defined(SQLITE_OMIT_INTEGRITY_CHECK)
 {/* zName:     */ "quick_check",
  /* ePragTyp:  */ PragTyp_INTEGRITY_CHECK,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "read_uncommitted",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ReadUncommitted },


 {/* zName:     */ "recursive_triggers",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* 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_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ReverseOrder },
#endif
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
 {/* zName:     */ "schema_version",
  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ BTREE_SCHEMA_VERSION },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "secure_delete",
  /* ePragTyp:  */ PragTyp_SECURE_DELETE,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "short_column_names",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ShortColNames },
#endif
 {/* zName:     */ "shrink_memory",
  /* ePragTyp:  */ PragTyp_SHRINK_MEMORY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "soft_heap_limit",
  /* ePragTyp:  */ PragTyp_SOFT_HEAP_LIMIT,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if defined(SQLITE_DEBUG)
 {/* zName:     */ "sql_trace",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_SqlTrace },
#endif
#endif
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)
 {/* zName:     */ "stats",
  /* ePragTyp:  */ PragTyp_STATS,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* ColNames:  */ 7, 4,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_PAGER_PRAGMAS)
 {/* zName:     */ "synchronous",
  /* ePragTyp:  */ PragTyp_SYNCHRONOUS,
  /* ePragFlg:  */ PragFlg_NeedSchema|PragFlg_Result0|PragFlg_SchemaReq,
  /* 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,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "temp_store_directory",
  /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
  /* ePragFlg:  */ 0,
  /* 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)
 {/* zName:     */ "user_version",
  /* ePragTyp:  */ PragTyp_HEADER_VALUE,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ BTREE_USER_VERSION },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if defined(SQLITE_DEBUG)
 {/* zName:     */ "vdbe_addoptrace",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_VdbeAddopTrace },
 {/* zName:     */ "vdbe_debug",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_SqlTrace|SQLITE_VdbeListing|SQLITE_VdbeTrace },
 {/* zName:     */ "vdbe_eqp",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_VdbeEQP },
 {/* zName:     */ "vdbe_listing",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_VdbeListing },
 {/* zName:     */ "vdbe_trace",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_VdbeTrace },
#endif
#endif
#if !defined(SQLITE_OMIT_WAL)
 {/* zName:     */ "wal_autocheckpoint",
  /* ePragTyp:  */ PragTyp_WAL_AUTOCHECKPOINT,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "wal_checkpoint",
  /* ePragTyp:  */ PragTyp_WAL_CHECKPOINT,
  /* ePragFlg:  */ PragFlg_NeedSchema,
  /* ColNames:  */ 42, 3,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "writable_schema",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_WriteSchema|SQLITE_RecoveryMode },
#endif
};
/* Number of pragmas: 62 on by default, 75 total. */
Changes to src/shell.c.
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  ".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"


#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"







>
>







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  ".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"
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  rc = _wunlink(z);
  sqlite3_free(z);
#else
  rc = unlink(zFilename);
#endif
  return rc;
}
























































































































































































































































/*
** If an input line begins with "." then invoke this routine to
** process that line.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/







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  rc = _wunlink(z);
  sqlite3_free(z);
#else
  rc = unlink(zFilename);
#endif
  return rc;
}


/*
** The implementation of SQL scalar function fkey_collate_clause(), used
** by the ".lint fkey-indexes" command. This scalar function is always
** called with four arguments - the parent table name, the parent column name,
** the child table name and the child column name.
**
**   fkey_collate_clause('parent-tab', 'parent-col', 'child-tab', 'child-col')
**
** If either of the named tables or columns do not exist, this function
** returns an empty string. An empty string is also returned if both tables 
** and columns exist but have the same default collation sequence. Or,
** if both exist but the default collation sequences are different, this
** function returns the string " COLLATE <parent-collation>", where
** <parent-collation> is the default collation sequence of the parent column.
*/
static void shellFkeyCollateClause(
  sqlite3_context *pCtx, 
  int nVal, 
  sqlite3_value **apVal
){
  sqlite3 *db = sqlite3_context_db_handle(pCtx);
  const char *zParent;
  const char *zParentCol;
  const char *zParentSeq;
  const char *zChild;
  const char *zChildCol;
  const char *zChildSeq;
  int rc;
  
  assert( nVal==4 );
  zParent = (const char*)sqlite3_value_text(apVal[0]);
  zParentCol = (const char*)sqlite3_value_text(apVal[1]);
  zChild = (const char*)sqlite3_value_text(apVal[2]);
  zChildCol = (const char*)sqlite3_value_text(apVal[3]);

  sqlite3_result_text(pCtx, "", -1, SQLITE_STATIC);
  rc = sqlite3_table_column_metadata(
      db, "main", zParent, zParentCol, 0, &zParentSeq, 0, 0, 0
  );
  if( rc==SQLITE_OK ){
    rc = sqlite3_table_column_metadata(
        db, "main", zChild, zChildCol, 0, &zChildSeq, 0, 0, 0
    );
  }

  if( rc==SQLITE_OK && sqlite3_stricmp(zParentSeq, zChildSeq) ){
    char *z = sqlite3_mprintf(" COLLATE %s", zParentSeq);
    sqlite3_result_text(pCtx, z, -1, SQLITE_TRANSIENT);
    sqlite3_free(z);
  }
}


/*
** The implementation of dot-command ".lint fkey-indexes".
*/
static int lintFkeyIndexes(
  ShellState *pState,             /* Current shell tool state */
  char **azArg,                   /* Array of arguments passed to dot command */
  int nArg                        /* Number of entries in azArg[] */
){
  sqlite3 *db = pState->db;       /* Database handle to query "main" db of */
  FILE *out = pState->out;        /* Stream to write non-error output to */
  int bVerbose = 0;               /* If -verbose is present */
  int bGroupByParent = 0;         /* If -groupbyparent is present */
  int i;                          /* To iterate through azArg[] */
  const char *zIndent = "";       /* How much to indent CREATE INDEX by */
  int rc;                         /* Return code */
  sqlite3_stmt *pSql = 0;         /* Compiled version of SQL statement below */

  /*
  ** This SELECT statement returns one row for each foreign key constraint
  ** in the schema of the main database. The column values are:
  **
  ** 0. The text of an SQL statement similar to:
  **
  **      "EXPLAIN QUERY PLAN SELECT rowid FROM child_table WHERE child_key=?"
  **
  **    This is the same SELECT that the foreign keys implementation needs
  **    to run internally on child tables. If there is an index that can
  **    be used to optimize this query, then it can also be used by the FK
  **    implementation to optimize DELETE or UPDATE statements on the parent
  **    table.
  **
  ** 1. A GLOB pattern suitable for sqlite3_strglob(). If the plan output by
  **    the EXPLAIN QUERY PLAN command matches this pattern, then the schema
  **    contains an index that can be used to optimize the query.
  **
  ** 2. Human readable text that describes the child table and columns. e.g.
  **
  **       "child_table(child_key1, child_key2)"
  **
  ** 3. Human readable text that describes the parent table and columns. e.g.
  **
  **       "parent_table(parent_key1, parent_key2)"
  **
  ** 4. A full CREATE INDEX statement for an index that could be used to
  **    optimize DELETE or UPDATE statements on the parent table. e.g.
  **
  **       "CREATE INDEX child_table_child_key ON child_table(child_key)"
  **
  ** 5. The name of the parent table.
  **
  ** These six values are used by the C logic below to generate the report.
  */
  const char *zSql =
  "SELECT "
    "     'EXPLAIN QUERY PLAN SELECT rowid FROM ' || quote(s.name) || ' WHERE '"
    "  || group_concat(quote(s.name) || '.' || quote(f.[from]) || '=?' "
    "  || fkey_collate_clause(f.[table], f.[to], s.name, f.[from]),' AND ')"
    ", "
    "     'SEARCH TABLE ' || s.name || ' USING COVERING INDEX*('"
    "  || group_concat('*=?', ' AND ') || ')'"
    ", "
    "     s.name  || '(' || group_concat(f.[from],  ', ') || ')'"
    ", "
    "     f.[table] || '(' || group_concat(COALESCE(f.[to], "
    "       (SELECT name FROM pragma_table_info(f.[table]) WHERE pk=seq+1)"
    "     )) || ')'"
    ", "
    "     'CREATE INDEX ' || quote(s.name ||'_'|| group_concat(f.[from], '_'))"
    "  || ' ON ' || quote(s.name) || '('"
    "  || group_concat(quote(f.[from]) ||"
    "        fkey_collate_clause(f.[table], f.[to], s.name, f.[from]), ', ')"
    "  || ');'"
    ", "
    "     f.[table] "

    "FROM sqlite_master AS s, pragma_foreign_key_list(s.name) AS f "
    "GROUP BY s.name, f.id "
    "ORDER BY (CASE WHEN ? THEN f.[table] ELSE s.name END)"
  ;

  for(i=2; i<nArg; i++){
    int n = strlen(azArg[i]);
    if( n>1 && sqlite3_strnicmp("-verbose", azArg[i], n)==0 ){
      bVerbose = 1;
    }
    else if( n>1 && sqlite3_strnicmp("-groupbyparent", azArg[i], n)==0 ){
      bGroupByParent = 1;
      zIndent = "    ";
    }
    else{
      raw_printf(stderr, "Usage: %s %s ?-verbose? ?-groupbyparent?\n",
          azArg[0], azArg[1]
      );
      return SQLITE_ERROR;
    }
  }
  
  /* Register the fkey_collate_clause() SQL function */
  rc = sqlite3_create_function(db, "fkey_collate_clause", 4, SQLITE_UTF8,
      0, shellFkeyCollateClause, 0, 0
  );


  if( rc==SQLITE_OK ){
    rc = sqlite3_prepare_v2(db, zSql, -1, &pSql, 0);
  }
  if( rc==SQLITE_OK ){
    sqlite3_bind_int(pSql, 1, bGroupByParent);
  }

  if( rc==SQLITE_OK ){
    int rc2;
    char *zPrev = 0;
    while( SQLITE_ROW==sqlite3_step(pSql) ){
      int res = -1;
      sqlite3_stmt *pExplain = 0;
      const char *zEQP = (const char*)sqlite3_column_text(pSql, 0);
      const char *zGlob = (const char*)sqlite3_column_text(pSql, 1);
      const char *zFrom = (const char*)sqlite3_column_text(pSql, 2);
      const char *zTarget = (const char*)sqlite3_column_text(pSql, 3);
      const char *zCI = (const char*)sqlite3_column_text(pSql, 4);
      const char *zParent = (const char*)sqlite3_column_text(pSql, 5);

      rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0);
      if( rc!=SQLITE_OK ) break;
      if( SQLITE_ROW==sqlite3_step(pExplain) ){
        const char *zPlan = (const char*)sqlite3_column_text(pExplain, 3);
        res = (0==sqlite3_strglob(zGlob, zPlan));
      }
      rc = sqlite3_finalize(pExplain);
      if( rc!=SQLITE_OK ) break;

      if( res<0 ){
        raw_printf(stderr, "Error: internal error");
        break;
      }else{
        if( bGroupByParent 
        && (bVerbose || res==0)
        && (zPrev==0 || sqlite3_stricmp(zParent, zPrev)) 
        ){
          raw_printf(out, "-- Parent table %s\n", zParent);
          sqlite3_free(zPrev);
          zPrev = sqlite3_mprintf("%s", zParent);
        }

        if( res==0 ){
          raw_printf(out, "%s%s --> %s\n", zIndent, zCI, zTarget);
        }else if( bVerbose ){
          raw_printf(out, "%s/* no extra indexes required for %s -> %s */\n", 
              zIndent, zFrom, zTarget
          );
        }
      }
    }
    sqlite3_free(zPrev);

    if( rc!=SQLITE_OK ){
      raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
    }

    rc2 = sqlite3_finalize(pSql);
    if( rc==SQLITE_OK && rc2!=SQLITE_OK ){
      rc = rc2;
      raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
    }
  }else{
    raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
  }

  return rc;
}

/*
** Implementation of ".lint" dot command.
*/
static int lintDotCommand(
  ShellState *pState,             /* Current shell tool state */
  char **azArg,                   /* Array of arguments passed to dot command */
  int nArg                        /* Number of entries in azArg[] */
){
  int n;
  n = (nArg>=2 ? strlen(azArg[1]) : 0);
  if( n<1 || sqlite3_strnicmp(azArg[1], "fkey-indexes", n) ) goto usage;
  return lintFkeyIndexes(pState, azArg, nArg);

 usage:
  raw_printf(stderr, "Usage %s sub-command ?switches...?\n", azArg[0]);
  raw_printf(stderr, "Where sub-commands are:\n");
  raw_printf(stderr, "    fkey-indexes\n");
  return SQLITE_ERROR;
}


/*
** If an input line begins with "." then invoke this routine to
** process that line.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/
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        sqlite3_limit(p->db, aLimit[iLimit].limitCode,
                      (int)integerValue(azArg[2]));
      }
      printf("%20s %d\n", aLimit[iLimit].zLimitName,
             sqlite3_limit(p->db, aLimit[iLimit].limitCode, -1));
    }
  }else






#ifndef SQLITE_OMIT_LOAD_EXTENSION
  if( c=='l' && strncmp(azArg[0], "load", n)==0 ){
    const char *zFile, *zProc;
    char *zErrMsg = 0;
    if( nArg<2 ){
      raw_printf(stderr, "Usage: .load FILE ?ENTRYPOINT?\n");







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        sqlite3_limit(p->db, aLimit[iLimit].limitCode,
                      (int)integerValue(azArg[2]));
      }
      printf("%20s %d\n", aLimit[iLimit].zLimitName,
             sqlite3_limit(p->db, aLimit[iLimit].limitCode, -1));
    }
  }else

  if( c=='l' && n>2 && strncmp(azArg[0], "lint", n)==0 ){
    open_db(p, 0);
    lintDotCommand(p, azArg, nArg);
  }else

#ifndef SQLITE_OMIT_LOAD_EXTENSION
  if( c=='l' && strncmp(azArg[0], "load", n)==0 ){
    const char *zFile, *zProc;
    char *zErrMsg = 0;
    if( nArg<2 ){
      raw_printf(stderr, "Usage: .load FILE ?ENTRYPOINT?\n");
Changes to src/sqliteInt.h.
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void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
void sqlite3ExprListSetSpan(Parse*,ExprList*,ExprSpan*);
void sqlite3ExprListDelete(sqlite3*, ExprList*);
u32 sqlite3ExprListFlags(const ExprList*);
int sqlite3Init(sqlite3*, char**);
int sqlite3InitCallback(void*, int, char**, char**);
void sqlite3Pragma(Parse*,Token*,Token*,IdList*);



void sqlite3ResetAllSchemasOfConnection(sqlite3*);
void sqlite3ResetOneSchema(sqlite3*,int);
void sqlite3CollapseDatabaseArray(sqlite3*);
void sqlite3CommitInternalChanges(sqlite3*);
void sqlite3DeleteColumnNames(sqlite3*,Table*);
int sqlite3ColumnsFromExprList(Parse*,ExprList*,i16*,Column**);
void sqlite3SelectAddColumnTypeAndCollation(Parse*,Table*,Select*);







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void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
void sqlite3ExprListSetSpan(Parse*,ExprList*,ExprSpan*);
void sqlite3ExprListDelete(sqlite3*, ExprList*);
u32 sqlite3ExprListFlags(const ExprList*);
int sqlite3Init(sqlite3*, char**);
int sqlite3InitCallback(void*, int, char**, char**);
void sqlite3Pragma(Parse*,Token*,Token*,IdList*);
#ifndef SQLITE_OMIT_VIRTUALTABLE
Module *sqlite3PragmaVtabRegister(sqlite3*,const char *zName);
#endif
void sqlite3ResetAllSchemasOfConnection(sqlite3*);
void sqlite3ResetOneSchema(sqlite3*,int);
void sqlite3CollapseDatabaseArray(sqlite3*);
void sqlite3CommitInternalChanges(sqlite3*);
void sqlite3DeleteColumnNames(sqlite3*,Table*);
int sqlite3ColumnsFromExprList(Parse*,ExprList*,i16*,Column**);
void sqlite3SelectAddColumnTypeAndCollation(Parse*,Table*,Select*);
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   int sqlite3VtabCommit(sqlite3 *db);
   void sqlite3VtabLock(VTable *);
   void sqlite3VtabUnlock(VTable *);
   void sqlite3VtabUnlockList(sqlite3*);
   int sqlite3VtabSavepoint(sqlite3 *, int, int);
   void sqlite3VtabImportErrmsg(Vdbe*, sqlite3_vtab*);
   VTable *sqlite3GetVTable(sqlite3*, Table*);







#  define sqlite3VtabInSync(db) ((db)->nVTrans>0 && (db)->aVTrans==0)
#endif
int sqlite3VtabEponymousTableInit(Parse*,Module*);
void sqlite3VtabEponymousTableClear(sqlite3*,Module*);
void sqlite3VtabMakeWritable(Parse*,Table*);
void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*, int);
void sqlite3VtabFinishParse(Parse*, Token*);







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   int sqlite3VtabCommit(sqlite3 *db);
   void sqlite3VtabLock(VTable *);
   void sqlite3VtabUnlock(VTable *);
   void sqlite3VtabUnlockList(sqlite3*);
   int sqlite3VtabSavepoint(sqlite3 *, int, int);
   void sqlite3VtabImportErrmsg(Vdbe*, sqlite3_vtab*);
   VTable *sqlite3GetVTable(sqlite3*, Table*);
   Module *sqlite3VtabCreateModule(
     sqlite3*,
     const char*,
     const sqlite3_module*,
     void*,
     void(*)(void*)
   );
#  define sqlite3VtabInSync(db) ((db)->nVTrans>0 && (db)->aVTrans==0)
#endif
int sqlite3VtabEponymousTableInit(Parse*,Module*);
void sqlite3VtabEponymousTableClear(sqlite3*,Module*);
void sqlite3VtabMakeWritable(Parse*,Table*);
void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*, int);
void sqlite3VtabFinishParse(Parse*, Token*);
Changes to src/vtab.c.
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*/
struct VtabCtx {
  VTable *pVTable;    /* The virtual table being constructed */
  Table *pTab;        /* The Table object to which the virtual table belongs */
  VtabCtx *pPrior;    /* Parent context (if any) */
  int bDeclared;      /* True after sqlite3_declare_vtab() is called */
};




































/*
** The actual function that does the work of creating a new module.
** This function implements the sqlite3_create_module() and
** sqlite3_create_module_v2() interfaces.
*/
static int createModule(
  sqlite3 *db,                    /* Database in which module is registered */
  const char *zName,              /* Name assigned to this module */
  const sqlite3_module *pModule,  /* The definition of the module */
  void *pAux,                     /* Context pointer for xCreate/xConnect */
  void (*xDestroy)(void *)        /* Module destructor function */
){
  int rc = SQLITE_OK;
  int nName;

  sqlite3_mutex_enter(db->mutex);
  nName = sqlite3Strlen30(zName);
  if( sqlite3HashFind(&db->aModule, zName) ){
    rc = SQLITE_MISUSE_BKPT;
  }else{
    Module *pMod;
    pMod = (Module *)sqlite3DbMallocRawNN(db, sizeof(Module) + nName + 1);
    if( pMod ){
      Module *pDel;
      char *zCopy = (char *)(&pMod[1]);
      memcpy(zCopy, zName, nName+1);
      pMod->zName = zCopy;
      pMod->pModule = pModule;
      pMod->pAux = pAux;
      pMod->xDestroy = xDestroy;
      pMod->pEpoTab = 0;
      pDel = (Module *)sqlite3HashInsert(&db->aModule,zCopy,(void*)pMod);
      assert( pDel==0 || pDel==pMod );
      if( pDel ){
        sqlite3OomFault(db);
        sqlite3DbFree(db, pDel);
      }
    }
  }
  rc = sqlite3ApiExit(db, rc);
  if( rc!=SQLITE_OK && xDestroy ) xDestroy(pAux);

  sqlite3_mutex_leave(db->mutex);
  return rc;
}


/*
** External API function used to create a new virtual-table module.







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<


<



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<



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*/
struct VtabCtx {
  VTable *pVTable;    /* The virtual table being constructed */
  Table *pTab;        /* The Table object to which the virtual table belongs */
  VtabCtx *pPrior;    /* Parent context (if any) */
  int bDeclared;      /* True after sqlite3_declare_vtab() is called */
};

/*
** Construct and install a Module object for a virtual table.  When this
** routine is called, it is guaranteed that all appropriate locks are held
** and the module is not already part of the connection.
*/
Module *sqlite3VtabCreateModule(
  sqlite3 *db,                    /* Database in which module is registered */
  const char *zName,              /* Name assigned to this module */
  const sqlite3_module *pModule,  /* The definition of the module */
  void *pAux,                     /* Context pointer for xCreate/xConnect */
  void (*xDestroy)(void *)        /* Module destructor function */
){
  Module *pMod;
  int nName = sqlite3Strlen30(zName);
  pMod = (Module *)sqlite3DbMallocRawNN(db, sizeof(Module) + nName + 1);
  if( pMod ){
    Module *pDel;
    char *zCopy = (char *)(&pMod[1]);
    memcpy(zCopy, zName, nName+1);
    pMod->zName = zCopy;
    pMod->pModule = pModule;
    pMod->pAux = pAux;
    pMod->xDestroy = xDestroy;
    pMod->pEpoTab = 0;
    pDel = (Module *)sqlite3HashInsert(&db->aModule,zCopy,(void*)pMod);
    assert( pDel==0 || pDel==pMod );
    if( pDel ){
      sqlite3OomFault(db);
      sqlite3DbFree(db, pDel);
      pMod = 0;
    }
  }
  return pMod;
}

/*
** The actual function that does the work of creating a new module.
** This function implements the sqlite3_create_module() and
** sqlite3_create_module_v2() interfaces.
*/
static int createModule(
  sqlite3 *db,                    /* Database in which module is registered */
  const char *zName,              /* Name assigned to this module */
  const sqlite3_module *pModule,  /* The definition of the module */
  void *pAux,                     /* Context pointer for xCreate/xConnect */
  void (*xDestroy)(void *)        /* Module destructor function */
){
  int rc = SQLITE_OK;


  sqlite3_mutex_enter(db->mutex);

  if( sqlite3HashFind(&db->aModule, zName) ){
    rc = SQLITE_MISUSE_BKPT;
  }else{





    (void)sqlite3VtabCreateModule(db, zName, pModule, pAux, xDestroy);












  }
  rc = sqlite3ApiExit(db, rc);
  if( rc!=SQLITE_OK && xDestroy ) xDestroy(pAux);

  sqlite3_mutex_leave(db->mutex);
  return rc;
}


/*
** External API function used to create a new virtual-table module.
Added test/shell6.test.








































































































































































































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# 2016 December 15
#
# 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.
#
#***********************************************************************
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix shell6
set CLI [test_find_cli]
db close
forcedelete test.db test.db-journal test.db-wal

foreach {tn schema output} {
  1 {
    CREATE TABLE p1(a PRIMARY KEY, b);
    CREATE TABLE c1(x, y REFERENCES p1);
  } {
    CREATE INDEX 'c1_y' ON 'c1'('y'); --> p1(a)
  }

  2 {
    CREATE TABLE p1(a PRIMARY KEY, b);
    CREATE TABLE c2(x REFERENCES p1, y REFERENCES p1);
  } {
    CREATE INDEX 'c2_y' ON 'c2'('y'); --> p1(a)
    CREATE INDEX 'c2_x' ON 'c2'('x'); --> p1(a)
  }

  3 {
    CREATE TABLE 'p 1'(a, b, c, PRIMARY KEY(c, b));
    CREATE TABLE 'c 1'(x, y, z, FOREIGN KEY (z, y) REFERENCES 'p 1');
  } {
    CREATE INDEX 'c 1_z_y' ON 'c 1'('z', 'y'); --> p 1(c,b)
  }

  4 {
    CREATE TABLE p1(a, 'b b b' PRIMARY KEY);
    CREATE TABLE c1('x y z' REFERENCES p1);
    CREATE INDEX i1 ON c1('x y z') WHERE "x y z" IS NOT NULL;
  } {
  }

  5 {
    CREATE TABLE p1(a, 'b b b' PRIMARY KEY);
    CREATE TABLE c1('x y z' REFERENCES p1);
    CREATE INDEX i1 ON c1('x y z') WHERE "x y z" IS NOT 12;
  } {
    CREATE INDEX 'c1_x y z' ON 'c1'('x y z'); --> p1(b b b)
  }

  6 {
    CREATE TABLE x1(a, b, c, UNIQUE(a, b));
    CREATE TABLE y1(a, b, c, FOREIGN KEY(b, a) REFERENCES x1(a, b));
    CREATE INDEX y1i ON y1(a, c, b);
  } {
    CREATE INDEX 'y1_b_a' ON 'y1'('b', 'a'); --> x1(a,b)
  }

  6 {
    CREATE TABLE x1(a COLLATE nocase, b, UNIQUE(a));
    CREATE TABLE y1(a COLLATE rtrim REFERENCES x1(a));
  } {
    CREATE INDEX 'y1_a' ON 'y1'('a' COLLATE nocase); --> x1(a)
  }

} {
  forcedelete test.db
  sqlite3 db test.db
  execsql $schema

  set expected ""
  foreach line [split $output "\n"] {
    set line [string trim $line]
    if {$line!=""} {
      append expected "$line\n"
    }
  }

  do_test 1.$tn.1 {
    set RES [catchcmd test.db [list .lint fkey-indexes]]
  } [list 0 [string trim $expected]]

  do_test 1.$tn.2 {
    execsql [lindex $RES 1]
    catchcmd test.db [list .lint fkey-indexes]
  } {0 {}}

  db close
}

finish_test


Changes to tool/mkpragmatab.tcl.
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#!/usr/bin/tclsh
#
# Run this script to generate the pragma name lookup table C code.
#
# To add new pragmas, first add the name and other relevant attributes
# of the pragma to the "pragma_def" object below.  Then run this script
# to generate the ../src/pragma.h header file that contains macros and
# the lookup table needed for pragma name lookup in the pragma.c module.
# Then add the extra "case PragTyp_XXXXX:" and subsequent code for the
# new pragma in ../src/pragma.c.
#










set pragma_def {
  NAME: full_column_names
  TYPE: FLAG
  ARG:  SQLITE_FullColNames
  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)

  NAME: short_column_names












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#!/usr/bin/tclsh
#
# Run this script to generate the pragma name lookup table C code.
#
# To add new pragmas, first add the name and other relevant attributes
# of the pragma to the "pragma_def" object below.  Then run this script
# to generate the ../src/pragma.h header file that contains macros and
# the lookup table needed for pragma name lookup in the pragma.c module.
# Then add the extra "case PragTyp_XXXXX:" and subsequent code for the
# new pragma in ../src/pragma.c.
#

# Flag meanings:
set flagMeaning(NeedSchema) {Force schema load before running}
set flagMeaning(ReadOnly)   {Read-only HEADER_VALUE}
set flagMeaning(Result0)    {Acts as query when no argument}
set flagMeaning(Result1)    {Acts as query when has one argument}
set flagMeaning(SchemaReq)  {Schema required - "main" is default}
set flagMeaning(SchemaOpt)  {Schema restricts name search if present}
set flagMeaning(NoColumns)  {OP_ResultRow called with zero columns}

set pragma_def {
  NAME: full_column_names
  TYPE: FLAG
  ARG:  SQLITE_FullColNames
  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)

  NAME: short_column_names
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  NAME: checkpoint_fullfsync
  TYPE: FLAG
  ARG:  SQLITE_CkptFullFSync
  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)

  NAME: cache_spill

  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)

  NAME: reverse_unordered_selects
  TYPE: FLAG
  ARG:  SQLITE_ReverseOrder
  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)








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  NAME: checkpoint_fullfsync
  TYPE: FLAG
  ARG:  SQLITE_CkptFullFSync
  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)

  NAME: cache_spill
  FLAG: Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)

  NAME: reverse_unordered_selects
  TYPE: FLAG
  ARG:  SQLITE_ReverseOrder
  IF:   !defined(SQLITE_OMIT_FLAG_PRAGMAS)

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  IF:   !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)

  NAME: cell_size_check
  TYPE: FLAG
  ARG:  SQLITE_CellSizeCk

  NAME: default_cache_size
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)

  NAME: page_size

  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: secure_delete

  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: page_count
  FLAG: NeedSchema
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: max_page_count
  TYPE: PAGE_COUNT
  FLAG: NeedSchema
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: locking_mode

  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: journal_mode
  FLAG: NeedSchema
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: journal_size_limit

  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: cache_size
  FLAG: NeedSchema
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: mmap_size
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: auto_vacuum
  FLAG: NeedSchema
  IF:   !defined(SQLITE_OMIT_AUTOVACUUM)

  NAME: incremental_vacuum
  FLAG: NeedSchema
  IF:   !defined(SQLITE_OMIT_AUTOVACUUM)

  NAME: temp_store

  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: temp_store_directory
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: data_store_directory
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN

  NAME: lock_proxy_file
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE

  NAME: synchronous
  FLAG: NeedSchema
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: table_info
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: stats
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: index_info
  TYPE: INDEX_INFO
  ARG:  0
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: index_xinfo
  TYPE: INDEX_INFO
  ARG:  1
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: index_list
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: database_list
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: collation_list


  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: foreign_key_list
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_FOREIGN_KEY)

  NAME: foreign_key_check
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)

  NAME: parser_trace
  IF:   defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_PARSER_TRACE)

  NAME: case_sensitive_like








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  IF:   !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)

  NAME: cell_size_check
  TYPE: FLAG
  ARG:  SQLITE_CellSizeCk

  NAME: default_cache_size
  FLAG: NeedSchema Result0 SchemaReq
  COLS: cache_size
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED)

  NAME: page_size
  FLAG: Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: secure_delete
  FLAG: Result0
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: page_count
  FLAG: NeedSchema Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: max_page_count
  TYPE: PAGE_COUNT
  FLAG: NeedSchema Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: locking_mode
  FLAG: Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: journal_mode
  FLAG: NeedSchema Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: journal_size_limit
  FLAG: Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: cache_size
  FLAG: NeedSchema Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: mmap_size
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: auto_vacuum
  FLAG: NeedSchema Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_AUTOVACUUM)

  NAME: incremental_vacuum
  FLAG: NeedSchema NoColumns
  IF:   !defined(SQLITE_OMIT_AUTOVACUUM)

  NAME: temp_store
  FLAG: Result0
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: temp_store_directory
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: data_store_directory
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_OS_WIN

  NAME: lock_proxy_file
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS) && SQLITE_ENABLE_LOCKING_STYLE

  NAME: synchronous
  FLAG: NeedSchema Result0 SchemaReq
  IF:   !defined(SQLITE_OMIT_PAGER_PRAGMAS)

  NAME: table_info
  FLAG: NeedSchema Result1 SchemaOpt
  COLS: cid name type notnull dflt_value pk
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: stats
  FLAG: NeedSchema Result0 SchemaReq
  COLS: table index width height
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: index_info
  TYPE: INDEX_INFO
  ARG:  0
  FLAG: NeedSchema Result1 SchemaOpt
  COLS: seqno cid name
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: index_xinfo
  TYPE: INDEX_INFO
  ARG:  1
  FLAG: NeedSchema Result1 SchemaOpt
  COLS: seqno cid name desc coll key
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: index_list
  FLAG: NeedSchema Result1 SchemaOpt
  COLS: seq name unique origin partial
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: database_list
  FLAG: NeedSchema Result0
  COLS: seq name file
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: collation_list
  FLAG: Result0
  COLS: seq name
  IF:   !defined(SQLITE_OMIT_SCHEMA_PRAGMAS)

  NAME: foreign_key_list
  FLAG: NeedSchema Result1 SchemaOpt
  COLS: id seq table from to on_update on_delete match
  IF:   !defined(SQLITE_OMIT_FOREIGN_KEY)

  NAME: foreign_key_check
  FLAG: NeedSchema
  COLS: table rowid parent fkid
  IF:   !defined(SQLITE_OMIT_FOREIGN_KEY) && !defined(SQLITE_OMIT_TRIGGER)

  NAME: parser_trace
  IF:   defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_PARSER_TRACE)

  NAME: case_sensitive_like

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  NAME: est_count
  FLAG: NeedSchema

  NAME: btree_sample
  FLAG: NeedSchema

  NAME: encoding

  IF:   !defined(SQLITE_OMIT_UTF16)

  NAME: schema_version
  TYPE: HEADER_VALUE
  ARG:  BTREE_SCHEMA_VERSION
  IF:   !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)








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  NAME: est_count
  FLAG: NeedSchema

  NAME: btree_sample
  FLAG: NeedSchema

  NAME: encoding
  FLAG: Result0
  IF:   !defined(SQLITE_OMIT_UTF16)

  NAME: schema_version
  TYPE: HEADER_VALUE
  ARG:  BTREE_SCHEMA_VERSION
  IF:   !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)

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  NAME: application_id
  TYPE: HEADER_VALUE
  ARG:  BTREE_APPLICATION_ID
  IF:   !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)

  NAME: compile_options

  IF:   !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)

  NAME: wal_checkpoint
  FLAG: NeedSchema

  IF:   !defined(SQLITE_OMIT_WAL)

  NAME: wal_autocheckpoint
  IF:   !defined(SQLITE_OMIT_WAL)

  NAME: shrink_memory

  NAME: busy_timeout



  NAME: lock_status


  IF:   defined(SQLITE_DEBUG) || defined(SQLITE_TEST)

  NAME: key
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: rekey
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexkey
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexrekey
  TYPE: HEXKEY
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: activate_extensions
  IF:   defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)

  NAME: soft_heap_limit


  NAME: threads

}

# Open the output file
#
set destfile "[file dir [file dir [file normal $argv0]]]/src/pragma.h"
puts "Overwriting $destfile with new pragma table..."
set fd [open $destfile wb]
puts $fd {/* DO NOT EDIT!
** This file is automatically generated by the script at
** ../tool/mkpragmatab.tcl.  To update the set of pragmas, edit
** that script and rerun it.
*/}

# Parse the PRAGMA table above.
#
set name {}
set type {}
set if {}
set flags {}


set arg 0
proc record_one {} {
  global name type if arg allbyname typebyif flags

  if {$name==""} return










  set allbyname($name) [list $type $arg $if $flags]
  set name {}
  set type {}
  set if {}
  set flags {}

  set arg 0
}
foreach line [split $pragma_def \n] {
  set line [string trim $line]
  if {$line==""} continue
  foreach {id val} [split $line :] break
  set val [string trim $val]
  if {$id=="NAME"} {
    record_one    
    set name $val
    set type [string toupper $val]
  } elseif {$id=="TYPE"} {
    set type $val






  } elseif {$id=="ARG"} {
    set arg $val


  } elseif {$id=="IF"} {
    lappend if $val
  } elseif {$id=="FLAG"} {
    foreach term [split $val] {
      lappend flags $term
      set allflags($term) 1
    }
  } else {
    error "bad pragma_def line: $line"
  }
}
record_one
set allnames [lsort [array names allbyname]]

# Generate #defines for all pragma type names.  Group the pragmas that are
# omit in default builds (defined(SQLITE_DEBUG) and defined(SQLITE_HAS_CODEC))
# at the end.
#

set pnum 0
foreach name $allnames {
  set type [lindex $allbyname($name) 0]
  if {[info exists seentype($type)]} continue
  set if [lindex $allbyname($name) 2]
  if {[regexp SQLITE_DEBUG $if] || [regexp SQLITE_HAS_CODEC $if]} continue
  set seentype($type) 1







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  NAME: application_id
  TYPE: HEADER_VALUE
  ARG:  BTREE_APPLICATION_ID
  IF:   !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)

  NAME: compile_options
  FLAG: Result0
  IF:   !defined(SQLITE_OMIT_COMPILEOPTION_DIAGS)

  NAME: wal_checkpoint
  FLAG: NeedSchema
  COLS: busy log checkpointed
  IF:   !defined(SQLITE_OMIT_WAL)

  NAME: wal_autocheckpoint
  IF:   !defined(SQLITE_OMIT_WAL)

  NAME: shrink_memory

  NAME: busy_timeout
  FLAG: Result0
  COLS: timeout

  NAME: lock_status
  FLAG: Result0
  COLS: database status
  IF:   defined(SQLITE_DEBUG) || defined(SQLITE_TEST)

  NAME: key
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: rekey
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexkey
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexrekey
  TYPE: HEXKEY
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: activate_extensions
  IF:   defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)

  NAME: soft_heap_limit
  FLAG: Result0

  NAME: threads
  FLAG: Result0
}

# Open the output file
#
set destfile "[file dir [file dir [file normal $argv0]]]/src/pragma.h"
puts "Overwriting $destfile with new pragma table..."
set fd [open $destfile wb]
puts $fd {/* DO NOT EDIT!
** This file is automatically generated by the script at
** ../tool/mkpragmatab.tcl.  To update the set of pragmas, edit
** that script and rerun it.
*/}

# Parse the PRAGMA table above.
#
set name {}
set type {}
set if {}
set flags {}
set cols {}
set cols_list {}
set arg 0
proc record_one {} {
  global name type if arg allbyname typebyif flags cols allcols
  global cols_list colUsedBy
  if {$name==""} return
  if {$cols!=""} {
    if {![info exists allcols($cols)]} {
      lappend cols_list $cols
      set allcols($cols) [llength $cols_list]
    }
    set cx $allcols($cols)
    lappend colUsedBy($cols) $name
  } else {
    set cx 0
  }
  set allbyname($name) [list $type $arg $if $flags $cx]
  set name {}
  set type {}
  set if {}
  set flags {}
  set cols {}
  set arg 0
}
foreach line [split $pragma_def \n] {
  set line [string trim $line]
  if {$line==""} continue
  foreach {id val} [split $line :] break
  set val [string trim $val]
  if {$id=="NAME"} {
    record_one    
    set name $val
    set type [string toupper $val]
  } elseif {$id=="TYPE"} {
    set type $val
    if {$type=="FLAG"} {
      lappend flags Result0 NoColumns
    }
    if {$type=="HEADER_VALUE"} {
      lappend flags Result0
    }
  } elseif {$id=="ARG"} {
    set arg $val
  } elseif {$id=="COLS"} {
    set cols $val
  } elseif {$id=="IF"} {
    lappend if $val
  } elseif {$id=="FLAG"} {
    foreach term [split $val] {
      lappend flags $term
      set allflags($term) 1
    }
  } else {
    error "bad pragma_def line: $line"
  }
}
record_one
set allnames [lsort [array names allbyname]]

# Generate #defines for all pragma type names.  Group the pragmas that are
# omit in default builds (defined(SQLITE_DEBUG) and defined(SQLITE_HAS_CODEC))
# at the end.
#
puts $fd "\n/* The various pragma types */"
set pnum 0
foreach name $allnames {
  set type [lindex $allbyname($name) 0]
  if {[info exists seentype($type)]} continue
  set if [lindex $allbyname($name) 2]
  if {[regexp SQLITE_DEBUG $if] || [regexp SQLITE_HAS_CODEC $if]} continue
  set seentype($type) 1
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  set seentype($type) 1
  puts $fd [format {#define %-35s %4d} PragTyp_$type $pnum]
  incr pnum
}

# Generate #defines for flags
#

set fv 1
foreach f [lsort [array names allflags]] {
  puts $fd [format {#define PragFlag_%-20s 0x%02x} $f $fv]

  set fv [expr {$fv*2}]
}




















# Generate the lookup table
#

puts $fd "static const struct sPragmaNames \173"
puts $fd "  const char *const zName;  /* Name of pragma */"
puts $fd "  u8 ePragTyp;              /* PragTyp_XXX value */"
puts $fd "  u8 mPragFlag;             /* Zero or more PragFlag_XXX values */"



puts $fd "  u32 iArg;                 /* Extra argument */"
puts $fd "\175 aPragmaNames\[\] = \173"


set current_if {}
set spacer [format {    %26s } {}]
foreach name $allnames {
  foreach {type arg if flag} $allbyname($name) break







  if {$if!=$current_if} {
    if {$current_if!=""} {
      foreach this_if $current_if {
        puts $fd "#endif"
      }
    }
    set current_if $if
    if {$current_if!=""} {
      foreach this_if $current_if {
        puts $fd "#if $this_if"
      }
    }
  }
  set typex [format PragTyp_%-23s $type,]
  if {$flag==""} {
    set flagx "0"
  } else {
    set flagx PragFlag_[join $flag {|PragFlag_}]
  }
  puts $fd "  \173 /* zName:     */ \"$name\","
  puts $fd "    /* ePragTyp:  */ PragTyp_$type,"
  puts $fd "    /* ePragFlag: */ $flagx,"

  puts $fd "    /* iArg:      */ $arg \175,"
}
if {$current_if!=""} {
  foreach this_if $current_if {
    puts $fd "#endif"
  }
}
puts $fd "\175;"







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  set seentype($type) 1
  puts $fd [format {#define %-35s %4d} PragTyp_$type $pnum]
  incr pnum
}

# Generate #defines for flags
#
puts $fd "\n/* Property flags associated with various pragma. */"
set fv 1
foreach f [lsort [array names allflags]] {
  puts $fd [format {#define PragFlg_%-10s 0x%02x /* %s */} \
             $f $fv $flagMeaning($f)]
  set fv [expr {$fv*2}]
}

# Generate the array of column names used by pragmas that act like
# queries.
#
puts $fd "\n/* Names of columns for pragmas that return multi-column result"
puts $fd "** or that return single-column results where the name of the"
puts $fd "** result column is different from the name of the pragma\n*/"
puts $fd "static const char *const pragCName\[\] = {"
set offset 0
foreach cols $cols_list {
  set cols_offset($allcols($cols)) $offset
  set ub " /* Used by: $colUsedBy($cols) */"
  foreach c $cols {
    puts $fd [format "  /* %3d */ %-14s%s" $offset \"$c\", $ub]
    set ub ""
    incr offset
  }
}
puts $fd "\175;"

# Generate the lookup table
#
puts $fd "\n/* Definitions of all built-in pragmas */"
puts $fd "typedef struct PragmaName \173"
puts $fd "  const char *const zName; /* Name of pragma */"
puts $fd "  u8 ePragTyp;             /* PragTyp_XXX value */"
puts $fd "  u8 mPragFlg;             /* Zero or more PragFlg_XXX values */"
puts $fd {  u8 iPragCName;           /* Start of column names in pragCName[] */}
puts $fd "  u8 nPragCName;          \
/* Num of col names. 0 means use pragma name */"
puts $fd "  u32 iArg;                /* Extra argument */"
puts $fd "\175 PragmaName;"
puts $fd "static const PragmaName aPragmaName\[\] = \173"

set current_if {}
set spacer [format {    %26s } {}]
foreach name $allnames {
  foreach {type arg if flag cx} $allbyname($name) break
  if {$cx==0} {
    set cy 0
    set nx 0
  } else {
    set cy $cols_offset($cx)
    set nx [llength [lindex $cols_list [expr {$cx-1}]]]
  }
  if {$if!=$current_if} {
    if {$current_if!=""} {
      foreach this_if $current_if {
        puts $fd "#endif"
      }
    }
    set current_if $if
    if {$current_if!=""} {
      foreach this_if $current_if {
        puts $fd "#if $this_if"
      }
    }
  }
  set typex [format PragTyp_%-23s $type,]
  if {$flag==""} {
    set flagx "0"
  } else {
    set flagx PragFlg_[join $flag {|PragFlg_}]
  }
  puts $fd " \173/* zName:     */ \"$name\","
  puts $fd "  /* ePragTyp:  */ PragTyp_$type,"
  puts $fd "  /* ePragFlg:  */ $flagx,"
  puts $fd "  /* ColNames:  */ $cy, $nx,"
  puts $fd "  /* iArg:      */ $arg \175,"
}
if {$current_if!=""} {
  foreach this_if $current_if {
    puts $fd "#endif"
  }
}
puts $fd "\175;"