my_table_map.h

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/*
   Copyright (c) 2016, 2022, Oracle and/or its affiliates.
 
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   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.
 
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   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License, version 2.0, for more details.
 
   You should have received a copy of the GNU General Public License
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
 
#ifndef MY_TABLE_MAP_INCLUDED
#define MY_TABLE_MAP_INCLUDED
 
#include <stdint.h>
 
using table_map = uint64_t;    // Used for table bits in join.
using nesting_map = uint64_t;  // Used for flags of nesting constructs.
using qep_tab_map = uint64_t;  // Used for indexing QEP_TABs in a JOIN.
 
// Test whether "map" contains the given table.
static inline bool ContainsTable(uint64_t map, unsigned idx) {
  return map & (uint64_t{1} << idx);
}
 
#endif  // MY_TABLE_MAP_INCLUDED