Fixed bugs 9820, 9799 and 9800.

mysql-test/r/select.result:
  Added test cases for bugs 9799, 9800 and 9820
mysql-test/t/select.test:
  Added test cases for bugs 9799, 9800 and 9820

1 files changed, 27 insertions, 0 deletions

diff --git a/mysql-test/t/select.test b/mysql-test/t/select.test
index a92c8ffdc66..64f6674181c 100644
--- a/mysql-test/t/select.test
+++ b/mysql-test/t/select.test
@@ -2029,3 +2029,30 @@ select t1.a from (t1 inner join t2 on t1.a=t2.a) where t2.a=1;
 select t1.a from ((t1 inner join t2 on t1.a=t2.a)) where t2.a=1;
 select x.a, y.a, z.a from ( (t1 x inner join t2 y on x.a=y.a) inner join t2 z on y.a=z.a) WHERE x.a=1;
 drop table t1,t2;
+
+#
+# Bug#9820
+#
+
+create table t1 (s1 varchar(5));
+insert into t1 values ('Wall');
+select min(s1) from t1 group by s1 with rollup;
+drop table t1;
+
+#
+# Bug#9799
+#
+
+create table t1 (s1 int) engine=myisam;
+insert into t1 values (0);
+select avg(distinct s1) from t1 group by s1 with rollup;
+drop table t1;
+
+#
+# Bug#9800
+#
+
+create table t1 (s1 int);
+insert into t1 values (null),(1);
+select distinct avg(s1) as x from t1 group by s1 with rollup;
+drop table t1;