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51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
/*****************************************************************************
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Copyright (c) 1996, 2009, Innobase Oy. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*****************************************************************************/
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/********************************************************************//**
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@file include/btr0types.h
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The index tree general types
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Created 2/17/1996 Heikki Tuuri
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*************************************************************************/
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#ifndef btr0types_h
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#define btr0types_h
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#include "univ.i"
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#include "rem0types.h"
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#include "page0types.h"
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/** Persistent cursor */
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typedef struct btr_pcur_struct btr_pcur_t;
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/** B-tree cursor */
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typedef struct btr_cur_struct btr_cur_t;
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/** B-tree search information for the adaptive hash index */
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typedef struct btr_search_struct btr_search_t;
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/** The size of a reference to data stored on a different page.
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The reference is stored at the end of the prefix of the field
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in the index record. */
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#define BTR_EXTERN_FIELD_REF_SIZE 20
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/** A BLOB field reference full of zero, for use in assertions and tests.
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Initially, BLOB field references are set to zero, in
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dtuple_convert_big_rec(). */
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extern const byte field_ref_zero[BTR_EXTERN_FIELD_REF_SIZE];
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#endif
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