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50 lines
1.8 KiB
50 lines
1.8 KiB
/* Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
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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_icp_h
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#define _my_icp_h
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/**
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@file include/my_icp.h
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*/
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/**
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Values returned by index_cond_func_xxx functions.
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*/
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typedef enum icp_result {
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/** Index tuple doesn't satisfy the pushed index condition (the engine
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should discard the tuple and go to the next one) */
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ICP_NO_MATCH,
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/** Index tuple satisfies the pushed index condition (the engine should
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fetch and return the record) */
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ICP_MATCH,
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/** Index tuple is out of the range that we're scanning, e.g. if we're
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scanning "t.key BETWEEN 10 AND 20" and got a "t.key=21" tuple (the engine
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should stop scanning and return HA_ERR_END_OF_FILE right away). */
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ICP_OUT_OF_RANGE
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} ICP_RESULT;
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#endif /* _my_icp_h */
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