~drizzle-trunk/drizzle/development

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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 *  Copyright (C) 2008 Sun Microsystems
 *
 *  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
 */

#ifndef _SQL_BITMAP_H_
#define _SQL_BITMAP_H_

/*
  Implementation of a bitmap type.
  The idea with this is to be able to handle any constant number of bits but
  also be able to use 32 or 64 bits bitmaps very efficiently
*/

#include <mysys/my_bitmap.h>
#include <drizzled/definitions.h>
#include <drizzled/util/test.h>
#include <drizzled/key_map.h>


typedef uint64_t table_map;          /* Used for table bits in join */
typedef uint32_t nesting_map;  /* Used for flags of nesting constructs */

/*
  Used to identify NESTED_JOIN structures within a join (applicable only to
  structures that have not been simplified away and embed more the one
  element)
*/
typedef uint64_t nested_join_map; /* Needed by sql_select.h and table.h */

#endif /* _SQL_BITMAP_H_ */