Index: ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out =================================================================== --- ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out (revision 1627376) +++ ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out (working copy) @@ -174,13 +174,12 @@ Map 9 Reducer 2 Reduce Operator Tree: - Join Operator + Merge Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} 1 - nullSafes: [false, true] outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator @@ -215,7 +214,7 @@ Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reducer 4 Reduce Operator Tree: - Join Operator + Merge Join Operator condition map: Left Outer Join0 to 1 condition expressions: