SQLite

**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**     PRAGMA
**
** $Id: build.c,v 1.193 2004/05/22 08:09:11 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Check to see if the schema for the database needs

  ** now.
  */
  if( !db->init.busy && (v = sqlite3GetVdbe(pParse))!=0 ){
    sqlite3BeginWriteOperation(pParse, 0, isTemp);
    if( !isTemp ){
      sqlite3VdbeAddOp(v, OP_Integer, db->file_format, 0);
      sqlite3VdbeAddOp(v, OP_SetCookie, 0, 1);
      sqlite3VdbeAddOp(v, OP_Integer, db->enc, 0);
      sqlite3VdbeAddOp(v, OP_SetCookie, 0, 4);
    }
    sqlite3OpenMasterTable(v, isTemp);
    sqlite3VdbeAddOp(v, OP_NewRecno, 0, 0);
    sqlite3VdbeAddOp(v, OP_Dup, 0, 0);
    sqlite3VdbeAddOp(v, OP_String, 0, 0);
    sqlite3VdbeAddOp(v, OP_PutIntKey, 0, 0);
  }

**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.183 2004/05/22 08:09:40 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/*
** A pointer to this structure is used to communicate information

  /* Get the database meta information.
  **
  ** Meta values are as follows:
  **    meta[0]   Schema cookie.  Changes with each schema change.
  **    meta[1]   File format of schema layer.
  **    meta[2]   Size of the page cache.
  **    meta[3]   Synchronous setting.  1:off, 2:normal, 3:full
  **    meta[4]   Db text encoding. 1:UTF-8 2:UTF-16 LE 3:UTF-16 BE
  **    meta[5]   Pragma temp_store value.  See comments on BtreeFactory
  **    meta[6]
  **    meta[7]
  **    meta[8]
  **    meta[9]
  **
  ** Note: The hash defined TEXT_Utf* symbols in sqliteInt.h correspond to
  ** the possible values of meta[4].
  */
  if( rc==SQLITE_OK ){
    int i;
    for(i=0; rc==SQLITE_OK && i<sizeof(meta)/sizeof(meta[0]); i++){
      rc = sqlite3BtreeGetMeta(db->aDb[iDb].pBt, i+1, &meta[i]);
    }
    if( rc ){
      sqlite3SetString(pzErrMsg, sqlite3_error_string(rc), (char*)0);
      sqlite3BtreeCloseCursor(curMain);
      return rc;
    }
  }else{
    memset(meta, 0, sizeof(meta));
  }
  db->aDb[iDb].schema_cookie = meta[0];
  if( iDb==0 ){
    db->next_cookie = meta[0];
    db->file_format = meta[1];
    if( meta[4] ){
      /* If meta[4] is still zero, then we are opening a previously empty
      ** file. Leave db->enc to the default value set by the sqlite3_open()
      ** call in this case.
      */
      db->enc = (u8)meta[4];
    }
    size = meta[2];
    if( size==0 ){ size = MAX_PAGES; }
    db->cache_size = size;
    db->safety_level = meta[3];
    if( meta[5]>0 && meta[5]<=2 && db->temp_store==0 ){
      db->temp_store = meta[5];
    }