38 lines
1.6 KiB
C++
38 lines
1.6 KiB
C++
/* Copyright (c) 2002, 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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#include "storage/myisammrg/myrg_def.h"
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ha_rows myrg_records_in_range(MYRG_INFO *info, int inx, key_range *min_key,
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key_range *max_key) {
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ha_rows records = 0, res;
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MYRG_TABLE *table;
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for (table = info->open_tables; table != info->end_table; table++) {
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res = mi_records_in_range(table->table, inx, min_key, max_key);
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if (res == HA_POS_ERROR) return HA_POS_ERROR;
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if (records > HA_POS_ERROR - res) return HA_POS_ERROR - 1;
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records += res;
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}
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return records;
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}
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