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Diffstat (limited to 'mysql-test/t/table_elim.test')
-rw-r--r-- | mysql-test/t/table_elim.test | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/mysql-test/t/table_elim.test b/mysql-test/t/table_elim.test index 7ad69d5bf37..5576362b396 100644 --- a/mysql-test/t/table_elim.test +++ b/mysql-test/t/table_elim.test @@ -467,3 +467,35 @@ HAVING field4 != 6; drop table t0,t1,t2,t3,t4,t5,t6; + +--echo # +--echo # BUG#675118: Elimination of a table results in an invalid execution plan +--echo # +CREATE TABLE t1 (f1 int(11), PRIMARY KEY (f1)) ; + +CREATE TABLE t2 (f4 varchar(1024), KEY (f4)) ; +INSERT IGNORE INTO t2 VALUES ('xcddwntkbxyorzdv'), + ('cnxxcddwntkbxyor'),('r'),('r'), ('did'),('I'),('when'), + ('hczkfqjeggivdvac'),('e'),('okay'),('up'); + +CREATE TABLE t3 (f4 varchar(1024), f1 int(11), f2 int(11)) ; +INSERT IGNORE INTO t3 VALUES ('f','4','0'),('n','5','-996540416'); + +CREATE TABLE t4 (f1 int(11), f3 varchar(10)) ; +INSERT IGNORE INTO t4 VALUES ('8','n'),('9','nwzcerzsgx'),('10','c'); + +CREATE TABLE t5 (f5 int(11), KEY (f5)) ; + +EXPLAIN +SELECT t3.f2 +FROM t2 +LEFT JOIN t3 +LEFT JOIN t4 +LEFT JOIN t1 ON t4.f1 = t1.f1 +JOIN t5 ON t4.f3 ON t3.f1 = t5.f5 ON t2.f4 = t3.f4 +WHERE t3.f2 ; +--echo # ^^ The above must not produce a QEP of t3,t5,t2,t4 +--echo # as that violates the "no interleaving of outer join nests" rule. + +DROP TABLE t1,t2,t3,t4,t5; + |