diff options
Diffstat (limited to 'mysql-test/r/subselect_sj2.result')
| -rw-r--r-- | mysql-test/r/subselect_sj2.result | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/mysql-test/r/subselect_sj2.result b/mysql-test/r/subselect_sj2.result index 43ba6ead575..9a5da710a4c 100644 --- a/mysql-test/r/subselect_sj2.result +++ b/mysql-test/r/subselect_sj2.result @@ -1178,5 +1178,89 @@ id nombre 2 row 2 3 row 3 DROP TABLE t1, t2; +# +# MDEV-7474: Semi-Join's DuplicateWeedout strategy skipped for some values of optimizer_search_depth +# +CREATE TABLE t1 ( +t1id BIGINT(20) NOT NULL, +code VARCHAR(20), +PRIMARY KEY (t1id) +) COLLATE='utf8mb4_bin' ENGINE=InnoDB; +CREATE TABLE t2 ( +t2id BIGINT(20) NOT NULL, +t1idref BIGINT(20) NOT NULL, +code VARCHAR(20), +PRIMARY KEY (t2id), +INDEX FK_T2_T1Id (t1idref), +CONSTRAINT FK_T2_T1Id FOREIGN KEY (t1idref) REFERENCES t1 (t1id) +) COLLATE='utf8mb4_bin' ENGINE=InnoDB; +CREATE TABLE t3 ( +t3idref BIGINT(20) NOT NULL, +t2idref BIGINT(20) NOT NULL, +sequencenumber INT(10) NOT NULL, +PRIMARY KEY (t3idref, t2idref), +INDEX FK_T3_T2Id (t2idref), +CONSTRAINT FK_T3_T2Id FOREIGN KEY (t2idref) REFERENCES t2 (t2id) +) COLLATE='utf8mb4_bin' ENGINE=InnoDB; +INSERT INTO t1 (t1id) VALUES (100001),(100017),(100018),(100026),(100027),(100028),(100029),(100030), +(100031),(100032),(100033),(100034),(100035),(100036),(100037),(100038),(100040),(100041),(100042), +(100043),(100044),(100045),(100046),(100047); +INSERT IGNORE INTO t2 (t2id, t1idref) SELECT t1id, t1id FROM t1; +INSERT IGNORE INTO t1 VALUES (200001, 'a'); +INSERT IGNORE INTO t2 (t2id, t1idref) VALUES (200011, 200001),(200012, 200001),(200013, 200001); +INSERT IGNORE INTO t3 VALUES (1, 200011, 1), (1, 200012, 2), (1, 200013, 3); +set @tmp7474= @@optimizer_search_depth; +SET SESSION optimizer_search_depth = 1; +SELECT SQL_NO_CACHE +T2_0_.t1idref, +T2_0_.t2id +FROM +t2 T2_0_ +WHERE +T2_0_.t1idref IN ( +SELECT +T1_1_.t1id +FROM +t3 T3_0_ +INNER JOIN +t2 T2_1_ +ON T3_0_.t2idref=T2_1_.t2id +INNER JOIN +t1 T1_1_ +ON T2_1_.t1idref=T1_1_.t1id +WHERE +T3_0_.t3idref= 1 +); +t1idref t2id +200001 200011 +200001 200012 +200001 200013 +explain SELECT SQL_NO_CACHE +T2_0_.t1idref, +T2_0_.t2id +FROM +t2 T2_0_ +WHERE +T2_0_.t1idref IN ( +SELECT +T1_1_.t1id +FROM +t3 T3_0_ +INNER JOIN +t2 T2_1_ +ON T3_0_.t2idref=T2_1_.t2id +INNER JOIN +t1 T1_1_ +ON T2_1_.t1idref=T1_1_.t1id +WHERE +T3_0_.t3idref= 1 +); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY T3_0_ ref PRIMARY,FK_T3_T2Id PRIMARY 8 const 3 Using index; Start temporary +1 PRIMARY T2_1_ eq_ref PRIMARY,FK_T2_T1Id PRIMARY 8 test.T3_0_.t2idref 1 +1 PRIMARY T1_1_ eq_ref PRIMARY PRIMARY 8 test.T2_1_.t1idref 1 Using index +1 PRIMARY T2_0_ ref FK_T2_T1Id FK_T2_T1Id 8 test.T2_1_.t1idref 1 Using index; End temporary +drop table t3,t2,t1; +set optimizer_search_depth=@tmp7474; # This must be the last in the file: set optimizer_switch=@subselect_sj2_tmp; |