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-rw-r--r--mysql-test/r/func_group.result9
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result
index cd049f17400..cb97ea298a0 100644
--- a/mysql-test/r/func_group.result
+++ b/mysql-test/r/func_group.result
@@ -2436,5 +2436,14 @@ c1
3
drop table t1,t2;
#
+# MDEV-10556 Assertion `0' failed in virtual void Item_sum_field::set_result_field(Field*)
+#
+CREATE TABLE t1 (i INT, KEY(i)) ENGINE=MyISAM;
+INSERT INTO t1 VALUES (10),(20),(30);
+SELECT DISTINCT STDDEV(1) FROM t1 GROUP BY i ORDER BY BENCHMARK(0, BIT_XOR(i));
+STDDEV(1)
+0.0000
+DROP TABLE t1;
+#
# End of 10.1 tests
#