mysql5/mysql-5.7.27/sql/sql_resolver.h

51 lines
1.7 KiB
C++

#ifndef SQL_RESOLVER_INCLUDED
#define SQL_RESOLVER_INCLUDED
/* Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
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 */
/**
RAII class for column privilege checking
*/
class Column_privilege_tracker
{
public:
Column_privilege_tracker(THD *thd, ulong privilege)
: thd(thd), saved_privilege(thd->want_privilege)
{
thd->want_privilege= privilege;
}
~Column_privilege_tracker()
{
thd->want_privilege= saved_privilege;
}
private:
THD *const thd;
const ulong saved_privilege;
};
/** @file Name resolution functions */
bool setup_order(THD *thd, Ref_ptr_array ref_pointer_array, TABLE_LIST *tables,
List<Item> &fields, List <Item> &all_fields, ORDER *order);
bool subquery_allows_materialization(Item_in_subselect *predicate,
THD *thd, SELECT_LEX *select_lex,
const SELECT_LEX *outer);
bool validate_gc_assignment(THD * thd, List<Item> *fields,
List<Item> *values, TABLE *tab);
#endif /* SQL_RESOLVER_INCLUDED */