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Diffstat (limited to 'mysql-test/t/subselect3.test')
| -rw-r--r-- | mysql-test/t/subselect3.test | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mysql-test/t/subselect3.test b/mysql-test/t/subselect3.test index 11468cd6759..dfe09968fa2 100644 --- a/mysql-test/t/subselect3.test +++ b/mysql-test/t/subselect3.test @@ -528,3 +528,21 @@ SELECT a, MAX(b), DROP TABLE t1, t2; + + +# +# Bug #27870: crash of an equijoin query with WHERE condition containing +# a subquery predicate of the form <join attr> NOT IN (SELECT ...) +# + +CREATE TABLE t1 (a int); +CREATE TABLE t2 (b int, PRIMARY KEY(b)); +INSERT INTO t1 VALUES (1), (NULL), (4); +INSERT INTO t2 VALUES (3), (1),(2), (5), (4), (7), (6); + +EXPLAIN EXTENDED +SELECT a FROM t1, t2 WHERE a=b AND (b NOT IN (SELECT a FROM t1)); +SELECT a FROM t1, t2 WHERE a=b AND (b NOT IN (SELECT a FROM t1)); +SELECT a FROM t1, t2 WHERE a=b AND (b NOT IN (SELECT a FROM t1 WHERE a > 4)); + +DROP TABLE t1,t2; |