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-rw-r--r--mysql-test/t/func_group.test8
1 files changed, 8 insertions, 0 deletions
diff --git a/mysql-test/t/func_group.test b/mysql-test/t/func_group.test
index b5270743465..47477c72004 100644
--- a/mysql-test/t/func_group.test
+++ b/mysql-test/t/func_group.test
@@ -1582,6 +1582,14 @@ SELECT id, AVG(a) AS avg, CAST(AVG(a) AS SIGNED) AS cast_avg FROM t1 GROUP BY id
DROP TABLE t1;
--echo #
+--echo # MDEV-9656 Assertion `0' failed in Item_sum_field::get_tmp_table_field()
+--echo #
+CREATE TABLE t1 (i INT);
+INSERT INTO t1 VALUES (1),(2);
+SELECT DISTINCT VAR_POP(1) FROM t1 GROUP BY @a := 's';
+DROP TABLE t1;
+
+--echo #
--echo # MDEV-8921 Wrong result for CAST(AVG(double_column) AS SIGNED)
--echo #
CREATE TABLE t1 (id INT, a DOUBLE);