diff options
Diffstat (limited to 'mysql-test/t/group_by.test')
| -rw-r--r-- | mysql-test/t/group_by.test | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/mysql-test/t/group_by.test b/mysql-test/t/group_by.test index 394eb8d7c68..44af2ca27a2 100644 --- a/mysql-test/t/group_by.test +++ b/mysql-test/t/group_by.test @@ -1264,4 +1264,41 @@ ON 1 WHERE t2.f1 > 1 GROUP BY t2.f1; DROP TABLE t1; +--echo # +--echo # Bug#59839: Aggregation followed by subquery yields wrong result +--echo # + +CREATE TABLE t1 ( + a INT, + b INT, + c INT, + KEY (a, b) +); + +INSERT INTO t1 VALUES + ( 1, 1, 1 ), + ( 1, 2, 2 ), + ( 1, 3, 3 ), + ( 1, 4, 6 ), + ( 1, 5, 5 ), + ( 1, 9, 13 ), + + ( 2, 1, 6 ), + ( 2, 2, 7 ), + ( 2, 3, 8 ); + +EXPLAIN +SELECT a, AVG(t1.b), +(SELECT t11.c FROM t1 t11 WHERE t11.a = t1.a AND t11.b = AVG(t1.b)) AS t11c, +(SELECT t12.c FROM t1 t12 WHERE t12.a = t1.a AND t12.b = AVG(t1.b)) AS t12c +FROM t1 GROUP BY a; + +SELECT a, AVG(t1.b), +(SELECT t11.c FROM t1 t11 WHERE t11.a = t1.a AND t11.b = AVG(t1.b)) AS t11c, +(SELECT t12.c FROM t1 t12 WHERE t12.a = t1.a AND t12.b = AVG(t1.b)) AS t12c +FROM t1 GROUP BY a; + +DROP TABLE t1; + + --echo # End of 5.1 tests |