diff options
Diffstat (limited to 'mysql-test/main/join_cache.result')
| -rw-r--r-- | mysql-test/main/join_cache.result | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/mysql-test/main/join_cache.result b/mysql-test/main/join_cache.result index eea397402ad..fde6e0fec6b 100644 --- a/mysql-test/main/join_cache.result +++ b/mysql-test/main/join_cache.result @@ -5925,6 +5925,39 @@ SET join_buffer_space_limit= default; set optimizer_switch=@save_optimizer_switch; DROP TABLE t1,t4,t5,t2; # +# MDEV-16603: BNLH for query with materialized semi-join +# +set join_cache_level=4; +CREATE TABLE t1 ( i1 int, v1 varchar(1)) ENGINE=InnoDB; +INSERT INTO t1 VALUES (7,'x'); +CREATE TABLE t2 (i1 int, v1 varchar(1), KEY v1 (v1,i1)) ENGINE=InnoDB; +INSERT INTO t2 VALUES +(NULL,'x'),(1,'x'),(3,'x'),(5,'x'),(8,'x'),(48,'x'), +(228,'x'),(3,'y'),(1,'z'),(9,'z'); +CREATE TABLE temp +SELECT t1.i1 AS f1, t1.v1 AS f2 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1)); +SELECT * FROM temp +WHERE (f1,f2) IN (SELECT t1.i1, t1.v1 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1))); +f1 f2 +7 x +7 x +7 x +7 x +7 x +7 x +7 x +EXPLAIN EXTENDED SELECT * FROM temp +WHERE (f1,f2) IN (SELECT t1.i1, t1.v1 FROM (t2 JOIN t1 ON (t1.v1 = t2.v1))); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1 100.00 +1 PRIMARY temp hash_ALL NULL #hash#$hj 9 test.t1.i1,test.t1.v1 7 100.00 Using where; Using join buffer (flat, BNLH join) +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 1 100.00 Using where +2 MATERIALIZED t2 hash_index v1 #hash#v1:v1 4:9 test.t1.v1 10 10.00 Using index; Using join buffer (flat, BNLH join) +Warnings: +Note 1003 select `test`.`temp`.`f1` AS `f1`,`test`.`temp`.`f2` AS `f2` from `test`.`temp` semi join (`test`.`t2` join `test`.`t1`) where `test`.`temp`.`f1` = `test`.`t1`.`i1` and `test`.`t2`.`v1` = `test`.`t1`.`v1` and `test`.`temp`.`f2` = `test`.`t1`.`v1` +DROP TABLE t1,t2,temp; +SET join_cache_level = default; +# # MDEV-5123 Remove duplicated conditions pushed both to join_tab->select_cond and join_tab->cache_select->cond for blocked joins. # set join_cache_level=default; |