"CREATE TABLE %Q.'%q_stat'(id INTEGER PRIMARY KEY, value BLOB);",
        p->zDb, p->zName
    );
  }
  return rc;
}

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

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

/*
** Store the current database page-size in bytes in p->nPgsz.
**
** If *pRc is non-zero when this function is called, it is a no-op. 
** Otherwise, if an error occurs, an SQLite error code is stored in *pRc
** before returning.
*/

        "CREATE TABLE %Q.'%q_stat'(id INTEGER PRIMARY KEY, value BLOB);",
        p->zDb, p->zName
    );
  }
  return rc;
}





































/*
** Store the current database page-size in bytes in p->nPgsz.
**
** If *pRc is non-zero when this function is called, it is a no-op. 
** Otherwise, if an error occurs, an SQLite error code is stored in *pRc
** before returning.
*/

  sqlite3_bind_null(pRtree->pWriteRowid, 2);
  sqlite3_step(pRtree->pWriteRowid);
  rc = sqlite3_reset(pRtree->pWriteRowid);
  *piRowid = sqlite3_last_insert_rowid(pRtree->db);
  return rc;
}

#ifndef NDEBUG
static int hashIsEmpty(Rtree *pRtree){
  int ii;
  for(ii=0; ii<HASHSIZE; ii++){
    assert( !pRtree->aHash[ii] );
  }
  return 1;
}
#endif

/*
** The xUpdate method for rtree module virtual tables.
*/
static int rtreeUpdate(
  sqlite3_vtab *pVtab, 
  int nData, 
  sqlite3_value **azData, 

  sqlite3_bind_null(pRtree->pWriteRowid, 2);
  sqlite3_step(pRtree->pWriteRowid);
  rc = sqlite3_reset(pRtree->pWriteRowid);
  *piRowid = sqlite3_last_insert_rowid(pRtree->db);
  return rc;
}











/*
** The xUpdate method for rtree module virtual tables.
*/
static int rtreeUpdate(
  sqlite3_vtab *pVtab, 
  int nData, 
  sqlite3_value **azData, 

  /* Generate the code to do the search.  Each iteration of the for
  ** loop below generates code for a single nested loop of the VM
  ** program.
  */
  notReady = ~(Bitmask)0;
  for(i=0; i<nTabList; i++){
    WhereLevel *pLevel = &pWInfo->a[i];
    explainOneScan(pParse, pTabList, pLevel, i, pLevel->iFrom, wctrlFlags);
    notReady = codeOneLoopStart(pWInfo, i, wctrlFlags, notReady);
    pWInfo->iContinue = pLevel->addrCont;
  }

#ifdef SQLITE_TEST  /* For testing and debugging use only */
  /* Record in the query plan information about the current table

  /* Generate the code to do the search.  Each iteration of the for
  ** loop below generates code for a single nested loop of the VM
  ** program.
  */
  notReady = ~(Bitmask)0;
  for(i=0; i<nTabList; i++){
    pLevel = &pWInfo->a[i];
    explainOneScan(pParse, pTabList, pLevel, i, pLevel->iFrom, wctrlFlags);
    notReady = codeOneLoopStart(pWInfo, i, wctrlFlags, notReady);
    pWInfo->iContinue = pLevel->addrCont;
  }

#ifdef SQLITE_TEST  /* For testing and debugging use only */
  /* Record in the query plan information about the current table