From ab576328f0cf8d6d38c2cc6d0fee5de50a4c99a3 Mon Sep 17 00:00:00 2001 From: "kostja@oak.local" <> Date: Mon, 15 Sep 2003 22:21:39 +0400 Subject: Fixed bug in the optimiser for FULL TABLE SCAN case: to estimate correctly cost of full table scan we should take into account rows read and skipped on each iteration. --- mysql-test/r/select_safe.result | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'mysql-test/r/select_safe.result') diff --git a/mysql-test/r/select_safe.result b/mysql-test/r/select_safe.result index c4e5984d360..1ee1368d029 100644 --- a/mysql-test/r/select_safe.result +++ b/mysql-test/r/select_safe.result @@ -70,7 +70,7 @@ insert into t1 values (null,"a"),(null,"a"),(null,"a"),(null,"a"),(null,"a"),(nu explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b; table type possible_keys key key_len ref rows Extra t1 ALL b NULL NULL NULL 21 -t2 ALL b NULL NULL NULL 16 Using where +t2 ref b b 21 t1.b 6 Using where set MAX_SEEKS_FOR_KEY=1; explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b; table type possible_keys key key_len ref rows Extra -- cgit v1.2.1