~drizzle-trunk/drizzle/development

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2010 Padraig O'Sullivan

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <config.h>

#include <drizzled/join_table.h>

#include <drizzled/optimizer/access_method/const.h>

#include <drizzled/sql_select.h>

#include <drizzled/table.h>

namespace drizzled {

void optimizer::Const::getStats(Table& table, JoinTable& join_tab)

{

  table.status= STATUS_NO_RECORD;

  join_tab.read_first_record= join_read_const;

  join_tab.read_record.read_record= join_no_more_records;

  if (table.covering_keys.test(join_tab.ref.key) && not table.no_keyread)

  {

    table.key_read= 1;

    table.cursor->extra(HA_EXTRA_KEYREAD);

  }

}

}