Drizzled Public API Documentation

select_union.h
00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; version 2 of the License.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 
00021 #pragma once
00022 
00023 #include <drizzled/select_result_interceptor.h>
00024 #include <drizzled/tmp_table_param.h>
00025 
00026 namespace drizzled
00027 {
00028 
00029 class select_union :public select_result_interceptor
00030 {
00031   Tmp_Table_Param tmp_table_param;
00032 public:
00033   Table *table;
00034 
00035   select_union() :table(0) { }
00036   ~select_union() { }
00037 
00038   int prepare(List<Item> &list, Select_Lex_Unit *u);
00039   bool send_data(List<Item> &items);
00040   bool send_eof();
00041   bool flush();
00042   void cleanup();
00043   bool create_result_table(Session *session, List<Item> *column_types,
00044                            bool is_distinct, uint64_t options,
00045                            const char *alias);
00046 };
00047 
00048 } /* namespace drizzled */
00049