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314a8bf114
New records_in_range() interface (similar to read_range()) Macros for faster bitmap handling Simplify read_range() code (#WL1786) New general key_cmp() function to compare keys
36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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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 as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "myrg_def.h"
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ha_rows myrg_records_in_range(MYRG_INFO *info, int inx,
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key_range *min_key, key_range *max_key)
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{
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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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{
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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)
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return HA_POS_ERROR;
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if (records > HA_POS_ERROR - res)
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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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