fix(TNS): fix for duplicate DISTINCT output

mysql-test/columnstore/basic/t/mcs26_insert_into_view.test

@@ -27,7 +27,7 @@ CREATE VIEW v AS
     SELECT      a.id a_id, b.id b_id, b.ta_id, a.value v1, b.value v2
     FROM        table_a a
     INNER JOIN  table_b b ON (b.ta_id = a.id);
-
+--sorted_result
 SELECT * FROM v;
 
 #Can not modify more than one base table through a join view
@@ -41,6 +41,7 @@ INSERT INTO v (a_id, v1) VALUES (3, 30);
 --error 1178
 INSERT INTO v (b_id, ta_id, v2) VALUES (5, 3, 500);
 
+--sorted_result
 SELECT * FROM v;
 
 #Clean up