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/* -*- 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/session.h>
#include <drizzled/join_table.h>
#include <drizzled/sql_select.h>
#include <drizzled/optimizer/access_method/const.h>
using namespace drizzled;
bool 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) &&
! table->no_keyread)
{
table->key_read= 1;
table->cursor->extra(HA_EXTRA_KEYREAD);
}
return false;
}
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