From b482176b6ddfce3b555111496fb47863c9db5fb8 Mon Sep 17 00:00:00 2001 From: unknown Date: Tue, 22 Jun 2004 04:47:28 +0400 Subject: Range optimizer fix: If cost(full_scan_on_shortest_covering_index) < cost(best_range_scan) < cost(full_table_scan) use full_scan_on_shortest_covering_index (before this fix best_range_scan was used) --- mysql-test/r/null_key.result | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'mysql-test/r/null_key.result') diff --git a/mysql-test/r/null_key.result b/mysql-test/r/null_key.result index e57ac321f46..11413204950 100644 --- a/mysql-test/r/null_key.result +++ b/mysql-test/r/null_key.result @@ -30,13 +30,13 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref a,b a 5 const 3 Using where; Using index explain select * from t1 where a is null and b=9 or a is null and b=7 limit 3; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range a,b a 9 NULL 2 Using where; Using index +1 SIMPLE t1 ref a,b a 5 const 2 Using where; Using index explain select * from t1 where a > 1 and a < 3 limit 1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range a a 5 NULL 1 Using where; Using index +1 SIMPLE t1 index a a 9 NULL 12 Using where; Using index explain select * from t1 where a > 8 and a < 9; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range a a 5 NULL 1 Using where; Using index +1 SIMPLE t1 index a a 9 NULL 12 Using where; Using index select * from t1 where a is null; a b NULL 7 -- cgit v1.2.1