From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:07:14 +0200 Subject: Adding upstream version 1:10.5.12. Signed-off-by: Daniel Baumann --- mysql-test/main/join_optimizer.result | 37 +++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 mysql-test/main/join_optimizer.result (limited to 'mysql-test/main/join_optimizer.result') diff --git a/mysql-test/main/join_optimizer.result b/mysql-test/main/join_optimizer.result new file mode 100644 index 00000000..ad7267ab --- /dev/null +++ b/mysql-test/main/join_optimizer.result @@ -0,0 +1,37 @@ +drop table if exists t0,t1,t2,t3; +# +# BUG#38049 incorrect rows estimations with references from preceding table +# +create table t0 (a int); +insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); +create table t1 (a varchar(32)); +insert into t1 values ('owner'),('requester'),('admincc'),('cc'); +CREATE TABLE t2 ( +id int(11) NOT NULL, +type varchar(32) default NULL, +PRIMARY KEY (id) +); +insert into t2 values (1,'owner'), (2,'admincc'); +CREATE TABLE t3 ( +id int(11) NOT NULL, +domain varchar(32) default NULL, +type varchar(32) default NULL, +PRIMARY KEY (id) +); +set @domain='system'; +set @pk=0; +INSERT INTO t3 select @pk:=@pk+1, 'system', t1.a from t1; +INSERT INTO t3 select @pk:=@pk+1, 'queue', t1.a from t1, t0 where t0.a<3; +INSERT INTO t3 select @pk:=@pk+1, 'ticket', t1.a from t1, t0 A, t0 B, t0 C; +CREATE INDEX groups_d ON t3(domain); +CREATE INDEX groups_t ON t3(type); +CREATE INDEX groups_td ON t3(type, domain); +CREATE INDEX groups_dt ON t3(domain, type); +For table g this must use ref(groups_dt) and #rows should be around 15 and not 335: +explain +SELECT STRAIGHT_JOIN g.id FROM t2 a, t3 g USE INDEX(groups_dt) +WHERE g.domain = 'queue' AND g.type = a.type; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE a ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE g ref groups_dt groups_dt 70 const,test.a.type 13 Using index condition +drop table t0,t1,t2,t3; -- cgit v1.2.3