1/* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; version 2 of the License.
6
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 GNU General Public License for more details.
11
12 You should have received a copy of the GNU General Public License
13 along with this program; if not, write to the Free Software
14 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
15
16#ifndef SQL_DERIVED_INCLUDED
17#define SQL_DERIVED_INCLUDED
18
19struct TABLE_LIST;
20class THD;
21struct LEX;
22
23bool mysql_handle_derived(LEX *lex, uint phases);
24bool mysql_handle_single_derived(LEX *lex, TABLE_LIST *derived, uint phases);
25bool mysql_handle_list_of_derived(LEX *lex, TABLE_LIST *dt_list, uint phases);
26bool mysql_derived_reinit(THD *thd, LEX *lex, TABLE_LIST *derived);
27
28/**
29 Cleans up the SELECT_LEX_UNIT for the derived table (if any).
30
31 @param thd Thread handler
32 @param lex LEX for this thread
33 @param derived TABLE_LIST for the derived table
34
35 @retval false Success
36 @retval true Failure
37*/
38bool mysql_derived_cleanup(THD *thd, LEX *lex, TABLE_LIST *derived);
39
40Item *delete_not_needed_parts(THD *thd, Item *cond);
41
42bool pushdown_cond_for_derived(THD *thd, Item *cond, TABLE_LIST *derived);
43
44#endif /* SQL_DERIVED_INCLUDED */
45