MySQL 8.0.30
Source Code Documentation
my_table_map.h
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1/*
2 Copyright (c) 2016, 2022, Oracle and/or its affiliates.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License, version 2.0,
6 as published by the Free Software Foundation.
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8 This program is also distributed with certain software (including
9 but not limited to OpenSSL) that is licensed under separate terms,
10 as designated in a particular file or component or in included license
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13 separately licensed software that they have included with MySQL.
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16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License, version 2.0, for more details.
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21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
23
24#ifndef MY_TABLE_MAP_INCLUDED
25#define MY_TABLE_MAP_INCLUDED
26
27#include <stdint.h>
28
29using table_map = uint64_t; // Used for table bits in join.
30using nesting_map = uint64_t; // Used for flags of nesting constructs.
31using qep_tab_map = uint64_t; // Used for indexing QEP_TABs in a JOIN.
32
33// Test whether "map" contains the given table.
34static inline bool ContainsTable(uint64_t map, unsigned idx) {
35 return map & (uint64_t{1} << idx);
36}
37
38#endif // MY_TABLE_MAP_INCLUDED
uint64_t nesting_map
Definition: my_table_map.h:30
uint64_t table_map
Definition: my_table_map.h:29
uint64_t qep_tab_map
Definition: my_table_map.h:31
static bool ContainsTable(uint64_t map, unsigned idx)
Definition: my_table_map.h:34
std::map< Key, Value, Compare, ut::allocator< std::pair< const Key, Value > > > map
Specialization of map which uses ut_allocator.
Definition: ut0new.h:2873