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-rw-r--r--mysql-test/r/group_min_max.result21
1 files changed, 21 insertions, 0 deletions
diff --git a/mysql-test/r/group_min_max.result b/mysql-test/r/group_min_max.result
index 7583aa14db8..2e5193f8563 100644
--- a/mysql-test/r/group_min_max.result
+++ b/mysql-test/r/group_min_max.result
@@ -2286,3 +2286,24 @@ Variable_name Value
Handler_read_key 8
Handler_read_next 1
DROP TABLE t1,t2,t3;
+CREATE TABLE t1 (a int, INDEX idx(a));
+INSERT INTO t1 VALUES
+(4), (2), (1), (2), (4), (2), (1), (4),
+(4), (2), (1), (2), (2), (4), (1), (4);
+EXPLAIN SELECT DISTINCT(a) FROM t1;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 range NULL idx 5 NULL 9 Using index for group-by
+SELECT DISTINCT(a) FROM t1;
+a
+1
+2
+4
+EXPLAIN SELECT SQL_BIG_RESULT DISTINCT(a) FROM t1;
+id select_type table type possible_keys key key_len ref rows Extra
+1 SIMPLE t1 range NULL idx 5 NULL 9 Using index for group-by
+SELECT SQL_BIG_RESULT DISTINCT(a) FROM t1;
+a
+1
+2
+4
+DROP TABLE t1;