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| author | Sergey Petrunya <psergey@askmonty.org> | 2010-04-25 12:23:52 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2010-04-25 12:23:52 +0400 |
| commit | b2c57cedbfd0f8ce2b4f67021a2aca5dedf9b6c9 (patch) | |
| tree | 4a5880d5723ea8c66289ffb340c46b911db454a1 /sql/opt_subselect.h | |
| parent | 30bac798066ced860d65bee8b3ef63d7b100e47d (diff) | |
| download | mariadb-git-b2c57cedbfd0f8ce2b4f67021a2aca5dedf9b6c9.tar.gz | |
Code cleanup in subquery optimizations
Diffstat (limited to 'sql/opt_subselect.h')
| -rw-r--r-- | sql/opt_subselect.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sql/opt_subselect.h b/sql/opt_subselect.h index d8716dbb77f..a9ed25fe311 100644 --- a/sql/opt_subselect.h +++ b/sql/opt_subselect.h @@ -1,4 +1,6 @@ -/* */ +/* + Semi-join subquery optimization code definitions +*/ #ifdef USE_PRAGMA_INTERFACE #pragma interface /* gcc class implementation */ @@ -365,4 +367,8 @@ int clear_sj_tmp_tables(JOIN *join); int rewrite_to_index_subquery_engine(JOIN *join); +void get_temptable_params(Item_in_subselect *item, ha_rows *out_rows, + ha_rows *scan_time); + +int do_jtbm_materialization_if_needed(JOIN_TAB *tab); |