SQLite

    flags = db->openFlags;
    rc = sqlite3ParseUri(db->pVfs->zName, zFile, &flags, &pVfs, &zPath, &zErr);
    if( rc!=SQLITE_OK ){
      if( rc==SQLITE_NOMEM ) sqlite3OomFault(db);
      sqlite3_result_error(context, zErr, -1);
      sqlite3_free(zErr);
      return;
    }
    if( (db->flags & SQLITE_AttachWrite)==0 ){
      flags &= ~(SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE);
      flags |= SQLITE_OPEN_READONLY;
    }else if( (db->flags & SQLITE_AttachCreate)==0 ){
      flags &= ~SQLITE_OPEN_CREATE;
    }
    assert( pVfs );
    flags |= SQLITE_OPEN_MAIN_DB;
    rc = sqlite3BtreeOpen(pVfs, zPath, db, &pNew->pBt, 0, flags);
    db->nDb++;
    pNew->zDbSName = sqlite3DbStrDup(db, zName);
  }

      int cnt = va_arg(ap, int);      /* IMP: R-04460-53386 */
      rc = setupLookaside(db, pBuf, sz, cnt);
      break;
    }
    default: {
      static const struct {
        int op;      /* The opcode */
        u64 mask;    /* Mask of the bit in sqlite3.flags to set/clear */
      } aFlagOp[] = {
        { SQLITE_DBCONFIG_ENABLE_FKEY,           SQLITE_ForeignKeys    },
        { SQLITE_DBCONFIG_ENABLE_TRIGGER,        SQLITE_EnableTrigger  },
        { SQLITE_DBCONFIG_ENABLE_VIEW,           SQLITE_EnableView     },
        { SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, SQLITE_Fts3Tokenizer  },
        { SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, SQLITE_LoadExtension  },
        { SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE,      SQLITE_NoCkptOnClose  },
        { SQLITE_DBCONFIG_ENABLE_QPSG,           SQLITE_EnableQPSG     },
        { SQLITE_DBCONFIG_TRIGGER_EQP,           SQLITE_TriggerEQP     },
        { SQLITE_DBCONFIG_RESET_DATABASE,        SQLITE_ResetDatabase  },
        { SQLITE_DBCONFIG_DEFENSIVE,             SQLITE_Defensive      },
        { SQLITE_DBCONFIG_WRITABLE_SCHEMA,       SQLITE_WriteSchema|
                                                 SQLITE_NoSchemaError  },
        { SQLITE_DBCONFIG_LEGACY_ALTER_TABLE,    SQLITE_LegacyAlter    },
        { SQLITE_DBCONFIG_DQS_DDL,               SQLITE_DqsDDL         },
        { SQLITE_DBCONFIG_DQS_DML,               SQLITE_DqsDML         },
        { SQLITE_DBCONFIG_LEGACY_FILE_FORMAT,    SQLITE_LegacyFileFmt  },
        { SQLITE_DBCONFIG_TRUSTED_SCHEMA,        SQLITE_TrustedSchema  },
        { SQLITE_DBCONFIG_STMT_SCANSTATUS,       SQLITE_StmtScanStatus },
        { SQLITE_DBCONFIG_REVERSE_SCANORDER,     SQLITE_ReverseOrder   },
        { SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE,  SQLITE_AttachCreate   },
        { SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE,   SQLITE_AttachWrite    },
        { SQLITE_DBCONFIG_ENABLE_COMMENTS,       SQLITE_Comments       },
      };
      unsigned int i;
      rc = SQLITE_ERROR; /* IMP: R-42790-23372 */
      for(i=0; i<ArraySize(aFlagOp); i++){
        if( aFlagOp[i].op==op ){
          int onoff = va_arg(ap, int);
          int *pRes = va_arg(ap, int*);

  ** SQLITE_TESTCTRL_SORTER_MMAP test-control at runtime. */
  db->nMaxSorterMmap = 0x7FFFFFFF;
#endif
  db->flags |= SQLITE_ShortColNames
                 | SQLITE_EnableTrigger
                 | SQLITE_EnableView
                 | SQLITE_CacheSpill
                 | SQLITE_AttachCreate
                 | SQLITE_AttachWrite
                 | SQLITE_Comments
#if !defined(SQLITE_TRUSTED_SCHEMA) || SQLITE_TRUSTED_SCHEMA+0!=0
                 | SQLITE_TrustedSchema
#endif
/* The SQLITE_DQS compile-time option determines the default settings
** for SQLITE_DBCONFIG_DQS_DDL and SQLITE_DBCONFIG_DQS_DML.
**
**    SQLITE_DQS     SQLITE_DBCONFIG_DQS_DDL    SQLITE_DBCONFIG_DQS_DML

}
%endif  SQLITE_OMIT_CTE

//////////////////////// WINDOW FUNCTION EXPRESSIONS /////////////////////////
// These must be at the end of this file. Specifically, the rules that
// introduce tokens WINDOW, OVER and FILTER must appear last. This causes 
// the integer values assigned to these tokens to be larger than all other 
// tokens that may be output by the tokenizer except TK_SPACE, TK_COMMENT,
// and TK_ILLEGAL.
//
%ifndef SQLITE_OMIT_WINDOWFUNC
%type windowdefn_list {Window*}
%destructor windowdefn_list {sqlite3WindowListDelete(pParse->db, $$);}
windowdefn_list(A) ::= windowdefn(A).
windowdefn_list(A) ::= windowdefn_list(Y) COMMA windowdefn(Z). {
  assert( Z!=0 );

%include {
#if TK_SPAN>255
# error too many tokens in the grammar
#endif
}

/*
** The TK_SPACE, TK_COMMENT, and TK_ILLEGAL tokens must be the last three
** tokens.  The parser depends on this.  Those tokens are not used in any
** grammar rule.  They are only used by the tokenizer.  Declare them last
** so that they are guaranteed to be the last three.
*/
%token SPACE COMMENT ILLEGAL.

  }else

  if( c=='d' && n>=3 && cli_strncmp(azArg[0], "dbconfig", n)==0 ){
    static const struct DbConfigChoices {
      const char *zName;
      int op;
    } aDbConfig[] = {
        { "attach_create",      SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE  },
        { "attach_write",       SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE   },
        { "comments",           SQLITE_DBCONFIG_ENABLE_COMMENTS       },
        { "defensive",          SQLITE_DBCONFIG_DEFENSIVE             },
        { "dqs_ddl",            SQLITE_DBCONFIG_DQS_DDL               },
        { "dqs_dml",            SQLITE_DBCONFIG_DQS_DML               },
        { "enable_fkey",        SQLITE_DBCONFIG_ENABLE_FKEY           },
        { "enable_qpsg",        SQLITE_DBCONFIG_ENABLE_QPSG           },
        { "enable_trigger",     SQLITE_DBCONFIG_ENABLE_TRIGGER        },
        { "enable_view",        SQLITE_DBCONFIG_ENABLE_VIEW           },

** the call worked.  ^The [sqlite3_db_config()] interface will return a
** non-zero [error code] if a discontinued or unsupported configuration option
** is invoked.
**
** <dl>
** [[SQLITE_DBCONFIG_LOOKASIDE]]
** <dt>SQLITE_DBCONFIG_LOOKASIDE</dt>
** <dd> The SQLITE_DBCONFIG_LOOKASIDE option is used to adjust the 
** configuration of the lookaside memory allocator within a database
** connection.
** The arguments to the SQLITE_DBCONFIG_LOOKASIDE option are <i>not</i>
** in the [DBCONFIG arguments|usual format].
** The SQLITE_DBCONFIG_LOOKASIDE option takes three arguments, not two.
** ^The first argument (the third parameter to [sqlite3_db_config()] is a
** pointer to a memory buffer to use for lookaside memory.
** ^The first argument after the SQLITE_DBCONFIG_LOOKASIDE verb
** may be NULL in which case SQLite will allocate the
** lookaside buffer itself using [sqlite3_malloc()]. ^The second argument is the
** size of each lookaside buffer slot.  ^The third argument is the number of
** slots.  The size of the buffer in the first argument must be greater than

** Any attempt to change the lookaside memory configuration when lookaside
** memory is in use leaves the configuration unchanged and returns
** [SQLITE_BUSY].)^</dd>
**
** [[SQLITE_DBCONFIG_ENABLE_FKEY]]
** <dt>SQLITE_DBCONFIG_ENABLE_FKEY</dt>
** <dd> ^This option is used to enable or disable the enforcement of
** [foreign key constraints].  This is the same setting that is
** enabled or disabled by the [PRAGMA foreign_keys] statement.
** The first argument is an integer which is 0 to disable FK enforcement,
** positive to enable FK enforcement or negative to leave FK enforcement
** unchanged.  The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether FK enforcement is off or on
** following this call.  The second parameter may be a NULL pointer, in
** which case the FK enforcement setting is not reported back. </dd>
**

** is written 0 or 1 to indicate whether triggers are disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the trigger setting is not reported back.
**
** <p>Originally this option disabled all triggers.  ^(However, since
** SQLite version 3.35.0, TEMP triggers are still allowed even if
** this option is off.  So, in other words, this option now only disables
** triggers in the main database schema or in the schemas of [ATTACH]-ed
** databases.)^ </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_VIEW]]
** <dt>SQLITE_DBCONFIG_ENABLE_VIEW</dt>
** <dd> ^This option is used to enable or disable [CREATE VIEW | views].
** There must be two additional arguments.
** The first argument is an integer which is 0 to disable views,
** positive to enable views or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether views are disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the view setting is not reported back.
**
** <p>Originally this option disabled all views.  ^(However, since
** SQLite version 3.35.0, TEMP views are still allowed even if
** this option is off.  So, in other words, this option now only disables
** views in the main database schema or in the schemas of ATTACH-ed
** databases.)^ </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER]]
** <dt>SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</dt>
** <dd> ^This option is used to enable or disable the
** [fts3_tokenizer()] function which is part of the
** [FTS3] full-text search engine extension.
** There must be two additional arguments.
** The first argument is an integer which is 0 to disable fts3_tokenizer() or
** positive to enable fts3_tokenizer() or negative to leave the setting
** unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether fts3_tokenizer is disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the new setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION]]
** <dt>SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION</dt>
** <dd> ^This option is used to enable or disable the [sqlite3_load_extension()]
** interface independently of the [load_extension()] SQL function.
** The [sqlite3_enable_load_extension()] API enables or disables both the
** C-API [sqlite3_load_extension()] and the SQL function [load_extension()].
** There must be two additional arguments.
** When the first argument to this interface is 1, then only the C-API is
** enabled and the SQL function remains disabled.  If the first argument to
** this interface is 0, then both the C-API and the SQL function are disabled.
** If the first argument is -1, then no changes are made to state of either the
** C-API or the SQL function.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether [sqlite3_load_extension()] interface
** is disabled or enabled following this call.  The second parameter may
** be a NULL pointer, in which case the new setting is not reported back.
** </dd>
**
** [[SQLITE_DBCONFIG_MAINDBNAME]] <dt>SQLITE_DBCONFIG_MAINDBNAME</dt>
** <dd> ^This option is used to change the name of the "main" database
** schema.  This option does not follow the
** [DBCONFIG arguments|usual SQLITE_DBCONFIG argument format].
** This option takes exactly one argument, which ust be a pointer
** to a constant UTF8 string which will become the new schema name
** in place of "main".  ^SQLite does not make a copy of the new main
** schema name string, so the application must ensure that the argument
** passed into SQLITE_DBCONFIG MAINDBNAME is unchanged
** until after the database connection closes.
** </dd>
**
** [[SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE]]
** <dt>SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE</dt>
** <dd> Usually, when a database in [WAL mode] is closed or detached from a
** database handle, SQLite checks if if there are other connections to the
** same database, and if there are no other database connection (if the
** connection being closed is the last open connection to the database),
** then SQLite performs a [checkpoint] before closing the connection and
** deletes the WAL file.  The SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE option can
** be used to override that behavior. The first parameter passed to this
** operation is an integer - positive to disable checkpoints-on-close, or
** zero (the default) to enable them, and negative to leave the setting unchanged.
** The second parameter is a pointer to an integer
** into which is written 0 or 1 to indicate whether checkpoints-on-close
** have been disabled - 0 if they are not disabled, 1 if they are.
** </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_QPSG]] <dt>SQLITE_DBCONFIG_ENABLE_QPSG</dt>
** <dd>^(The SQLITE_DBCONFIG_ENABLE_QPSG option activates or deactivates

** <dt>SQLITE_DBCONFIG_STMT_SCANSTATUS</dt>
** <dd>The SQLITE_DBCONFIG_STMT_SCANSTATUS option is only useful in
** SQLITE_ENABLE_STMT_SCANSTATUS builds. In this case, it sets or clears
** a flag that enables collection of the sqlite3_stmt_scanstatus_v2()
** statistics. For statistics to be collected, the flag must be set on
** the database handle both when the SQL statement is prepared and when it
** is stepped. The flag is set (collection of statistics is enabled)
** by default. <p>This option takes two arguments: an integer and a pointer to
** an integer..  The first argument is 1, 0, or -1 to enable, disable, or
** leave unchanged the statement scanstatus option.  If the second argument
** is not NULL, then the value of the statement scanstatus setting after
** processing the first argument is written into the integer that the second
** argument points to.
** </dd>
**
** [[SQLITE_DBCONFIG_REVERSE_SCANORDER]]
** <dt>SQLITE_DBCONFIG_REVERSE_SCANORDER</dt>
** <dd>The SQLITE_DBCONFIG_REVERSE_SCANORDER option changes the default order
** in which tables and indexes are scanned so that the scans start at the end
** and work toward the beginning rather than starting at the beginning and
** working toward the end. Setting SQLITE_DBCONFIG_REVERSE_SCANORDER is the
** same as setting [PRAGMA reverse_unordered_selects]. <p>This option takes
** two arguments which are an integer and a pointer to an integer.  The first
** argument is 1, 0, or -1 to enable, disable, or leave unchanged the
** reverse scan order flag, respectively.  If the second argument is not NULL,
** then 0 or 1 is written into the integer that the second argument points to
** depending on if the reverse scan order flag is set after processing the
** first argument.
** </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE]]
** <dt>SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE</dt>
** <dd>The SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE option enables or disables
** the ability of the [ATTACH DATABASE] SQL command to create a new database
** file if the database filed named in the ATTACH command does not already
** exist.  This ability of ATTACH to create a new database is enabled by
** default.  Applications can disable or reenable the ability for ATTACH to
** create new database files using this DBCONFIG option.<p>
** This option takes two arguments which are an integer and a pointer
** to an integer.  The first argument is 1, 0, or -1 to enable, disable, or
** leave unchanged the attach-create flag, respectively.  If the second
** argument is not NULL, then 0 or 1 is written into the integer that the
** second argument points to depending on if the attach-create flag is set
** after processing the first argument. 
** </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE]]
** <dt>SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE</dt>
** <dd>The SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE option enables or disables the
** ability of the [ATTACH DATABASE] SQL command to open a database for writing.
** This capability is enabled by default.  Applications can disable or
** reenable this capability using the current DBCONFIG option.  If the
** the this capability is disabled, the [ATTACH] command will still work,
** but the database will be opened read-only.  If this option is disabled,
** then the ability to create a new database using [ATTACH] is also disabled,
** regardless of the value of the [SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE]
** option.<p>
** This option takes two arguments which are an integer and a pointer
** to an integer.  The first argument is 1, 0, or -1 to enable, disable, or
** leave unchanged the ability to ATTACH another database for writing,
** respectively.  If the second argument is not NULL, then 0 or 1 is written
** into the integer to which the second argument points, depending on whether
** the ability to ATTACH a read/write database is enabled or disabled
** after processing the first argument.
** </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_COMMENTS]]
** <dt>SQLITE_DBCONFIG_ENABLE_COMMENTS</dt>
** <dd>The SQLITE_DBCONFIG_ENABLE_COMMENTS option enables or disables the
** ability to include comments in SQL text.  Comments are enabled by default.
** An application can disable or reenable comments in SQL text using this
** DBCONFIG option.<p>
** This option takes two arguments which are an integer and a pointer
** to an integer.  The first argument is 1, 0, or -1 to enable, disable, or
** leave unchanged the ability to use comments in SQL text,
** respectively.  If the second argument is not NULL, then 0 or 1 is written
** into the integer that the second argument points to depending on if 
** comments are allowed in SQL text after processing the first argument.
** </dd>
**
** </dl>
**
** [[DBCONFIG arguments]] <h3>Arguments To SQLITE_DBCONFIG Options</h3>
**
** <p>Most of the SQLITE_DBCONFIG options take two argument, an integer
** and a pointer to an integer.  If the first integer argument is 1, then
** the option becomes enabled.  If the first integer argument is 0, then the
** option is disabled.  If the first argument is -1, then the option setting
** is unchanged.  The second argument, the pointer to an integer, may be NULL.
** If the second argument is not NULL, then a value of 0 or 1 is written into
** the integer to which the second argument points, depending on whether the
** setting is disabled or enabled after applying any changes specified by
** the first argument.
**
** <p>While most SQLITE_DBCONFIG options use the argument format
** described in the previous paragraph, the [SQLITE_DBCONFIG_MAINDBNAME]
** and [SQLITE_DBCONFIG_LOOKASIDE] options are different.  See the
** documentation of those exceptional options for details.
*/
#define SQLITE_DBCONFIG_MAINDBNAME            1000 /* const char* */
#define SQLITE_DBCONFIG_LOOKASIDE             1001 /* void* int int */
#define SQLITE_DBCONFIG_ENABLE_FKEY           1002 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_TRIGGER        1003 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER 1004 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION 1005 /* int int* */

#define SQLITE_DBCONFIG_DQS_DML               1013 /* int int* */
#define SQLITE_DBCONFIG_DQS_DDL               1014 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_VIEW           1015 /* int int* */
#define SQLITE_DBCONFIG_LEGACY_FILE_FORMAT    1016 /* int int* */
#define SQLITE_DBCONFIG_TRUSTED_SCHEMA        1017 /* int int* */
#define SQLITE_DBCONFIG_STMT_SCANSTATUS       1018 /* int int* */
#define SQLITE_DBCONFIG_REVERSE_SCANORDER     1019 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE  1020 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE   1021 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_COMMENTS       1022 /* int int* */
#define SQLITE_DBCONFIG_MAX                   1022 /* Largest DBCONFIG */

/*
** CAPI3REF: Enable Or Disable Extended Result Codes
** METHOD: sqlite3
**
** ^The sqlite3_extended_result_codes() routine enables or disables the
** [extended result codes] feature of SQLite. ^The extended result

#define SQLITE_EnableView     0x80000000  /* Enable the use of views */
#define SQLITE_CountRows      HI(0x00001) /* Count rows changed by INSERT, */
                                          /*   DELETE, or UPDATE and return */
                                          /*   the count using a callback. */
#define SQLITE_CorruptRdOnly  HI(0x00002) /* Prohibit writes due to error */
#define SQLITE_ReadUncommit   HI(0x00004) /* READ UNCOMMITTED in shared-cache */
#define SQLITE_FkNoAction     HI(0x00008) /* Treat all FK as NO ACTION */
#define SQLITE_AttachCreate   HI(0x00010) /* ATTACH allowed to create new dbs */
#define SQLITE_AttachWrite    HI(0x00020) /* ATTACH allowed to open for write */
#define SQLITE_Comments       HI(0x00040) /* Enable SQL comments */

/* Flags used only if debugging */
#ifdef SQLITE_DEBUG
#define SQLITE_SqlTrace       HI(0x0100000) /* Debug print SQL as it executes */
#define SQLITE_VdbeListing    HI(0x0200000) /* Debug listings of VDBE progs */
#define SQLITE_VdbeTrace      HI(0x0400000) /* True to trace VDBE execution */
#define SQLITE_VdbeAddopTrace HI(0x0800000) /* Trace sqlite3VdbeAddOp() calls */

      for(i=1; sqlite3Isspace(z[i]); i++){}
      *tokenType = TK_SPACE;
      return i;
    }
    case CC_MINUS: {
      if( z[1]=='-' ){
        for(i=2; (c=z[i])!=0 && c!='\n'; i++){}
        *tokenType = TK_COMMENT;
        return i;
      }else if( z[1]=='>' ){
        *tokenType = TK_PTR;
        return 2 + (z[2]=='>');
      }
      *tokenType = TK_MINUS;
      return 1;

    case CC_SLASH: {
      if( z[1]!='*' || z[2]==0 ){
        *tokenType = TK_SLASH;
        return 1;
      }
      for(i=3, c=z[2]; (c!='*' || z[i]!='/') && (c=z[i])!=0; i++){}
      if( c ) i++;
      *tokenType = TK_COMMENT;
      return i;
    }
    case CC_PERCENT: {
      *tokenType = TK_REM;
      return 1;
    }
    case CC_EQ: {

      pParse->nErr++;
      break;
    }
#ifndef SQLITE_OMIT_WINDOWFUNC
    if( tokenType>=TK_WINDOW ){
      assert( tokenType==TK_SPACE || tokenType==TK_OVER || tokenType==TK_FILTER
           || tokenType==TK_ILLEGAL || tokenType==TK_WINDOW 
           || tokenType==TK_QNUMBER || tokenType==TK_COMMENT
      );
#else
    if( tokenType>=TK_SPACE ){
      assert( tokenType==TK_SPACE || tokenType==TK_ILLEGAL 
           || tokenType==TK_QNUMBER || tokenType==TK_COMMENT
      );
#endif /* SQLITE_OMIT_WINDOWFUNC */
      if( AtomicLoad(&db->u1.isInterrupted) ){
        pParse->rc = SQLITE_INTERRUPT;
        pParse->nErr++;
        break;
      }

      }else if( tokenType==TK_OVER ){
        assert( n==4 );
        tokenType = analyzeOverKeyword((const u8*)&zSql[4], lastTokenParsed);
      }else if( tokenType==TK_FILTER ){
        assert( n==6 );
        tokenType = analyzeFilterKeyword((const u8*)&zSql[6], lastTokenParsed);
#endif /* SQLITE_OMIT_WINDOWFUNC */
      }else if( tokenType==TK_COMMENT && (db->flags & SQLITE_Comments)!=0 ){
        zSql += n;
        continue;
      }else if( tokenType!=TK_QNUMBER ){
        Token x;
        x.z = zSql;
        x.n = n;
        sqlite3ErrorMsg(pParse, "unrecognized token: \"%T\"", &x);
        break;
      }

  /* Verify that the first two keywords in the CREATE TABLE statement
  ** really are "CREATE" and "TABLE".  If this is not the case, then
  ** sqlite3_declare_vtab() is being misused.
  */
  z = (const unsigned char*)zCreateTable;
  for(i=0; aKeyword[i]; i++){
    int tokenType = 0;
    do{
      z += sqlite3GetToken(z, &tokenType);
    }while( tokenType==TK_SPACE || tokenType==TK_COMMENT );
    if( tokenType!=aKeyword[i] ){
      sqlite3ErrorWithMsg(db, SQLITE_ERROR, "syntax error");
      return SQLITE_ERROR;
    }
  }
 
  sqlite3_mutex_enter(db->mutex);