From aef987891519ee378f0ab195fe0f10bb67e2caaa Mon Sep 17 00:00:00 2001 From: unknown Date: Thu, 10 May 2007 00:06:24 -0700 Subject: Fixed bug #28189: in some rare cases optimizer preferred a more expensive ref access to a less expensive range access. This occurred only with InnoDB tables. mysql-test/r/innodb_mysql.result: Added a test case for bug #28189. mysql-test/t/innodb_mysql.test: Added a test case for bug #28189. --- sql/sql_select.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sql/sql_select.cc') diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 3a480c01ac1..967322600a7 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -4189,7 +4189,7 @@ best_access_path(JOIN *join, !(s->quick && best_key && s->quick->index == best_key->key && // (2) best_max_key_part >= s->table->quick_key_parts[best_key->key]) &&// (2) !((s->table->file->table_flags() & HA_TABLE_SCAN_ON_INDEX) && // (3) - ! s->table->used_keys.is_clear_all() && best_key) && // (3) + ! s->table->used_keys.is_clear_all() && best_key && !s->quick) &&// (3) !(s->table->force_index && best_key && !s->quick)) // (4) { // Check full join ha_rows rnd_records= s->found_records; -- cgit v1.2.1