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Diffstat (limited to 'mysql-test/main/subselect_innodb.test')
-rw-r--r-- | mysql-test/main/subselect_innodb.test | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/mysql-test/main/subselect_innodb.test b/mysql-test/main/subselect_innodb.test index 544bcd994ed..b8d12d04a5e 100644 --- a/mysql-test/main/subselect_innodb.test +++ b/mysql-test/main/subselect_innodb.test @@ -611,3 +611,35 @@ FROM t1 DROP TABLE t1,t2,t3,t4; +--echo # +--echo # MDEV-17362: SIGSEGV in JOIN::optimize_inner or Assertion `fixed == 0' +--echo # failed in Item_equal::fix_fields, server crashes after 2nd execution +--echo # of PS +--echo # + +create table t1 (a int, b int); +create table t2 (x int, y int); + +insert into t1 values (1,1),(2,2); +insert into t2 values (1,1),(2,2),(2,3); + +--echo # here we can see conditions pushdown (see HAVING): +prepare stmt from " +explain extended +SELECT * FROM t1 +WHERE a = b + AND (a,b) IN (SELECT t2.x, COUNT(t2.y) FROM t2 WHERE 1=2 GROUP BY t2.x);"; + +execute stmt; + +--echo # here re-execution of the pushdown does not crash: +prepare stmt from " +SELECT * FROM t1 +WHERE a = b + AND (a,b) IN (SELECT t2.x, COUNT(t2.y) FROM t2 WHERE 1=2 GROUP BY t2.x);"; + +execute stmt; +execute stmt; +execute stmt; + +drop table t1,t2; |