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Diffstat (limited to 'storage/myisammrg/myrg_range.c')
| -rw-r--r-- | storage/myisammrg/myrg_range.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/storage/myisammrg/myrg_range.c b/storage/myisammrg/myrg_range.c new file mode 100644 index 00000000000..aafdf70525c --- /dev/null +++ b/storage/myisammrg/myrg_range.c @@ -0,0 +1,36 @@ +/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB + + 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; either version 2 of the License, or + (at your option) any later version. + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#include "myrg_def.h" + +ha_rows myrg_records_in_range(MYRG_INFO *info, int inx, + key_range *min_key, key_range *max_key) +{ + ha_rows records=0, res; + MYRG_TABLE *table; + + for (table=info->open_tables ; table != info->end_table ; table++) + { + res= mi_records_in_range(table->table, inx, min_key, max_key); + if (res == HA_POS_ERROR) + return HA_POS_ERROR; + if (records > HA_POS_ERROR - res) + return HA_POS_ERROR-1; + records+=res; + } + return records; +} + |