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| author | Sergey Petrunya <psergey@askmonty.org> | 2010-08-09 23:01:40 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2010-08-09 23:01:40 +0400 |
| commit | 0276757dbc635ed8dc54133827d3656061c29343 (patch) | |
| tree | 1b8d665cb6f5e5fce4861b0c19cbe4c7449c72e7 /sql/sql_select.cc | |
| parent | a81f75150e882efd45c50f32c289e49902e6a7fb (diff) | |
| parent | 57c17e18af47c7cd200a604410f6389d0ad01d52 (diff) | |
| download | mariadb-git-0276757dbc635ed8dc54133827d3656061c29343.tar.gz | |
DS-MRR support for clustered primary keys and key-ordered retrieval: merge with 5.3
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 2638daf4e5c..7e9e880a37a 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -7508,10 +7508,11 @@ uint check_join_cache_usage(JOIN_TAB *tab, case JT_EQ_REF: if (cache_level <= 4) return 0; - flags= HA_MRR_NO_NULL_ENDPOINTS; + flags= HA_MRR_NO_NULL_ENDPOINTS | HA_MRR_SINGLE_POINT; if (tab->table->covering_keys.is_set(tab->ref.key)) flags|= HA_MRR_INDEX_ONLY; rows= tab->table->file->multi_range_read_info(tab->ref.key, 10, 20, + tab->ref.key_parts, &bufsz, &flags, &cost); if ((rows != HA_POS_ERROR) && !(flags & HA_MRR_USE_DEFAULT_IMPL) && (!(flags & HA_MRR_NO_ASSOCIATION) || cache_level > 6) && |