diff options
Diffstat (limited to 'sql/opt_subselect.h')
| -rw-r--r-- | sql/opt_subselect.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/sql/opt_subselect.h b/sql/opt_subselect.h index eca7b1acb3b..7b8f3142851 100644 --- a/sql/opt_subselect.h +++ b/sql/opt_subselect.h @@ -1,4 +1,20 @@ /* + Copyright (c) 2010, 2012, Monty Program 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; version 2 of the License. + + 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 */ + +/* Semi-join subquery optimization code definitions */ @@ -170,8 +186,8 @@ public: */ if (try_loosescan && // (1) - (handled_sj_equalities | bound_sj_equalities) == // (2) - PREV_BITS(ulonglong, s->emb_sj_nest->sj_in_exprs) && // (2) + (handled_sj_equalities | bound_sj_equalities) == // (2) + PREV_BITS(ulonglong, s->emb_sj_nest->sj_in_exprs) && // (2) (PREV_BITS(key_part_map, max_loose_keypart+1) & // (3) (found_part | loose_scan_keyparts)) == // (3) PREV_BITS(key_part_map, max_loose_keypart+1) && // (3) @@ -281,7 +297,7 @@ public: }; -void advance_sj_state(JOIN *join, const table_map remaining_tables, uint idx, +extern void advance_sj_state(JOIN *join, table_map remaining_tables, uint idx, double *current_record_count, double *current_read_time, POSITION *loose_scan_pos); void restore_prev_sj_state(const table_map remaining_tables, |