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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems
*
* 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; version 2 of the License.
*
* 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
*/
#ifndef DRIZZLED_MULTI_UPDATE_H
#define DRIZZLED_MULTI_UPDATE_H
#include <list>
class multi_update :public select_result_interceptor
{
TableList *all_tables; /* query/update command tables */
TableList *leaves; /* list of leves of join table tree */
std::list<TableList*> update_tables;
TableList *table_being_updated;
Table **tmp_tables, *main_table, *table_to_update;
Tmp_Table_Param *tmp_table_param;
ha_rows updated, found;
List <Item> *fields, *values;
List <Item> **fields_for_table, **values_for_table;
uint32_t table_count;
/*
List of tables referenced in the CHECK OPTION condition of
the updated view excluding the updated table.
*/
List <Table> unupdated_check_opt_tables;
CopyField *copy_field;
enum enum_duplicates handle_duplicates;
bool do_update, trans_safe;
/* True if the update operation has made a change in a transactional table */
bool transactional_tables;
bool ignore;
/*
error handling (rollback and binlogging) can happen in send_eof()
so that afterward send_error() needs to find out that.
*/
bool error_handled;
public:
multi_update(TableList *ut, TableList *leaves_list,
List<Item> *fields, List<Item> *values,
enum_duplicates handle_duplicates, bool ignore);
~multi_update();
int prepare(List<Item> &list, Select_Lex_Unit *u);
bool send_data(List<Item> &items);
bool initialize_tables (JOIN *join);
void send_error(uint32_t errcode,const char *err);
int do_updates();
bool send_eof();
virtual void abort();
};
#endif /* DRIZZLED_MULTI_UPDATE_H */
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