MySQL
8.0.33
Source Code Documentation
my_table_map.h
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/*
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Copyright (c) 2016, 2023, Oracle and/or its affiliates.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef MY_TABLE_MAP_INCLUDED
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#define MY_TABLE_MAP_INCLUDED
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#include <stdint.h>
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using
table_map
= uint64_t;
// Used for table bits in join.
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using
nesting_map
= uint64_t;
// Used for flags of nesting constructs.
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using
qep_tab_map
= uint64_t;
// Used for indexing QEP_TABs in a JOIN.
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// Test whether "map" contains the given table.
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static
inline
bool
ContainsTable
(uint64_t
map
,
unsigned
idx) {
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return
map
& (uint64_t{1} << idx);
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}
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#endif
// MY_TABLE_MAP_INCLUDED
nesting_map
uint64_t nesting_map
Definition:
my_table_map.h:30
table_map
uint64_t table_map
Definition:
my_table_map.h:29
qep_tab_map
uint64_t qep_tab_map
Definition:
my_table_map.h:31
ContainsTable
static bool ContainsTable(uint64_t map, unsigned idx)
Definition:
my_table_map.h:34
ut::map
std::map< Key, Value, Compare, ut::allocator< std::pair< const Key, Value > > > map
Specialization of map which uses ut_allocator.
Definition:
ut0new.h:2890
include
my_table_map.h
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