diff options
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); |