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Diffstat (limited to 'mysql-test/t/having.test')
-rw-r--r-- | mysql-test/t/having.test | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/mysql-test/t/having.test b/mysql-test/t/having.test index 8b39e3bd454..c0ce3cbace7 100644 --- a/mysql-test/t/having.test +++ b/mysql-test/t/having.test @@ -151,4 +151,30 @@ EXPLAIN SELECT 0 AS x, a FROM t1 GROUP BY x,a HAVING x=1 AND a > 1; DROP table t1; +# +# Bug #29911: HAVING clause depending on constant table and evaluated to false +# + +CREATE TABLE t1 (a int PRIMARY KEY); +CREATE TABLE t2 (b int PRIMARY KEY, a int); +CREATE TABLE t3 (b int, flag int); + +INSERT INTO t1 VALUES (1); +INSERT INTO t2 VALUES (1,1), (2,1), (3,1); +INSERT INTO t3(b,flag) VALUES (2, 1); + +SELECT t1.a + FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b + GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0; + +SELECT DISTINCT t1.a, MAX(t3.flag) + FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b + GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0; + +SELECT DISTINCT t1.a + FROM t1 INNER JOIN t2 ON t1.a=t2.a LEFT JOIN t3 ON t2.b=t3.b + GROUP BY t1.a, t2.b HAVING MAX(t3.flag)=0; + +DROP TABLE t1,t2,t3; + # End of 4.1 tests |