FAQ
http://git-wip-us.apache.org/repos/asf/hive/blob/d8ee05ae/ql/src/test/results/clientpositive/mapjoin_subquery.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/mapjoin_subquery.q.out b/ql/src/test/results/clientpositive/mapjoin_subquery.q.out
index 1f7a5f4..cb6d92d 100644
--- a/ql/src/test/results/clientpositive/mapjoin_subquery.q.out
+++ b/ql/src/test/results/clientpositive/mapjoin_subquery.q.out
@@ -40,11 +40,11 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  HashTable Sink Operator
                    keys:
                      0 _col0 (type: string)
@@ -55,11 +55,11 @@ STAGE PLANS:
              Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string)
                  outputColumnNames: _col0
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                  HashTable Sink Operator
                    keys:
                      0 _col0 (type: string)
@@ -73,11 +73,11 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string)
                  outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  Map Join Operator
                    condition map:
                         Inner Join 0 to 1
@@ -85,11 +85,11 @@ STAGE PLANS:
                      0 _col0 (type: string)
                      1 _col0 (type: string)
                    outputColumnNames: _col1
- Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                    Select Operator
                      expressions: _col1 (type: string)
                      outputColumnNames: _col0
- Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                      Map Join Operator
                        condition map:
                             Inner Join 0 to 1
@@ -97,14 +97,14 @@ STAGE PLANS:
                          0 _col0 (type: string)
                          1 _col0 (type: string)
                        outputColumnNames: _col1, _col4
- Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                        Select Operator
                          expressions: _col4 (type: string), _col1 (type: string)
                          outputColumnNames: _col0, _col1
- Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                          File Output Operator
                            compressed: false
- Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                            table:
                                input format: org.apache.hadoop.mapred.TextInputFormat
                                output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -283,11 +283,11 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  HashTable Sink Operator
                    keys:
                      0 _col0 (type: string)
@@ -298,11 +298,11 @@ STAGE PLANS:
              Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string)
                  outputColumnNames: _col0
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                  HashTable Sink Operator
                    keys:
                      0 _col0 (type: string)
@@ -316,11 +316,11 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string)
                  outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  Map Join Operator
                    condition map:
                         Inner Join 0 to 1
@@ -328,11 +328,11 @@ STAGE PLANS:
                      0 _col0 (type: string)
                      1 _col0 (type: string)
                    outputColumnNames: _col1
- Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                    Select Operator
                      expressions: _col1 (type: string)
                      outputColumnNames: _col0
- Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                      Map Join Operator
                        condition map:
                             Inner Join 0 to 1
@@ -340,14 +340,14 @@ STAGE PLANS:
                          0 _col0 (type: string)
                          1 _col0 (type: string)
                        outputColumnNames: _col1, _col4
- Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                        Select Operator
                          expressions: _col4 (type: string), _col1 (type: string)
                          outputColumnNames: _col0, _col1
- Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                          File Output Operator
                            compressed: false
- Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                            table:
                                input format: org.apache.hadoop.mapred.TextInputFormat
                                output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat

http://git-wip-us.apache.org/repos/asf/hive/blob/d8ee05ae/ql/src/test/results/clientpositive/mergejoin.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/mergejoin.q.out b/ql/src/test/results/clientpositive/mergejoin.q.out
index e4a9e5b..acf816e 100644
--- a/ql/src/test/results/clientpositive/mergejoin.q.out
+++ b/ql/src/test/results/clientpositive/mergejoin.q.out
@@ -22,16 +22,16 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: string)
- Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                    value expressions: _col1 (type: string)
            TableScan
              alias: b
@@ -39,16 +39,16 @@ STAGE PLANS:
              Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: string), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: string)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                    value expressions: _col1 (type: string)
        Reduce Operator Tree:
          Join Operator
@@ -58,10 +58,10 @@ STAGE PLANS:
              0 _col0 (type: string)
              1 _col0 (type: string)
            outputColumnNames: _col0, _col1, _col2, _col3
- Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
- Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
              table:
                  input format: org.apache.hadoop.mapred.TextInputFormat
                  output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -253,32 +253,32 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: b
              filterExpr: key is not null (type: boolean)
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -286,7 +286,7 @@ STAGE PLANS:
            keys:
              0 _col0 (type: int)
              1 _col0 (type: int)
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -1653,16 +1653,16 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: (key is not null and value is not null) (type: boolean)
- Statistics: Num rows: 61 Data size: 5734 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 61 Data size: 5734 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 61 Data size: 5734 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                    value expressions: _col1 (type: string)
            TableScan
              alias: b
@@ -1670,16 +1670,16 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -1688,7 +1688,7 @@ STAGE PLANS:
              0 _col0 (type: int)
              1 _col0 (type: int)
            outputColumnNames: _col1
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
              table:
@@ -1704,23 +1704,23 @@ STAGE PLANS:
                key expressions: _col1 (type: string)
                sort order: +
                Map-reduce partition columns: _col1 (type: string)
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: c
              filterExpr: value is not null (type: boolean)
              Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: value is not null (type: boolean)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: value (type: string)
                  outputColumnNames: _col0
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: string)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -1728,7 +1728,7 @@ STAGE PLANS:
            keys:
              0 _col1 (type: string)
              1 _col0 (type: string)
- Statistics: Num rows: 302 Data size: 28435 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 56870 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -1805,32 +1805,32 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: value is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: value (type: string)
                  outputColumnNames: _col1
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col1 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col1 (type: string)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: b
              filterExpr: value is not null (type: boolean)
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: value is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: value (type: string)
                  outputColumnNames: _col1
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col1 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col1 (type: string)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -1838,7 +1838,7 @@ STAGE PLANS:
            keys:
              0 _col1 (type: string)
              1 _col1 (type: string)
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -1922,32 +1922,32 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: s1
              filterExpr: key is not null (type: boolean)
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -1956,7 +1956,7 @@ STAGE PLANS:
              0 _col0 (type: int)
              1 _col0 (type: int)
            outputColumnNames: _col0
- Statistics: Num rows: 133 Data size: 12511 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 266 Data size: 25022 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
              table:
@@ -1969,46 +1969,46 @@ STAGE PLANS:
        Map Operator Tree:
            TableScan
              Union
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
                Reduce Output Operator
                  key expressions: _col0 (type: int)
                  sort order: +
                  Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: s1
              filterExpr: key is not null (type: boolean)
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Union
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
                    Reduce Output Operator
                      key expressions: _col0 (type: int)
                      sort order: +
                      Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: b
              filterExpr: key is not null (type: boolean)
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -2016,7 +2016,7 @@ STAGE PLANS:
            keys:
              0 _col0 (type: int)
              1 _col0 (type: int)
- Statistics: Num rows: 279 Data size: 26273 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 558 Data size: 52547 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -2076,32 +2076,32 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: value is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: value (type: string)
                  outputColumnNames: _col1
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col1 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col1 (type: string)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: b
              filterExpr: value is not null (type: boolean)
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: value is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: value (type: string)
                  outputColumnNames: _col1
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col1 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col1 (type: string)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -2109,7 +2109,7 @@ STAGE PLANS:
            keys:
              0 _col1 (type: string)
              1 _col1 (type: string)
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -2185,16 +2185,16 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: (key is not null and value is not null) (type: boolean)
- Statistics: Num rows: 61 Data size: 5734 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 61 Data size: 5734 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 61 Data size: 5734 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                    value expressions: _col1 (type: string)
            TableScan
              alias: b
@@ -2202,16 +2202,16 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -2220,7 +2220,7 @@ STAGE PLANS:
              0 _col0 (type: int)
              1 _col0 (type: int)
            outputColumnNames: _col1
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
              table:
@@ -2236,23 +2236,23 @@ STAGE PLANS:
                key expressions: _col1 (type: string)
                sort order: +
                Map-reduce partition columns: _col1 (type: string)
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: c
              filterExpr: value is not null (type: boolean)
              Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: value is not null (type: boolean)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: value (type: string)
                  outputColumnNames: _col0
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: string)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: string)
- Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -2260,7 +2260,7 @@ STAGE PLANS:
            keys:
              0 _col1 (type: string)
              1 _col0 (type: string)
- Statistics: Num rows: 302 Data size: 28435 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 605 Data size: 56870 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -2346,32 +2346,32 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: s1
              filterExpr: key is not null (type: boolean)
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -2380,7 +2380,7 @@ STAGE PLANS:
              0 _col0 (type: int)
              1 _col0 (type: int)
            outputColumnNames: _col0
- Statistics: Num rows: 133 Data size: 12511 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 266 Data size: 25022 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
              table:
@@ -2393,46 +2393,46 @@ STAGE PLANS:
        Map Operator Tree:
            TableScan
              Union
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
                Reduce Output Operator
                  key expressions: _col0 (type: int)
                  sort order: +
                  Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: s1
              filterExpr: key is not null (type: boolean)
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Union
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
                    Reduce Output Operator
                      key expressions: _col0 (type: int)
                      sort order: +
                      Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 254 Data size: 23885 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 508 Data size: 47770 Basic stats: COMPLETE Column stats: NONE
            TableScan
              alias: b
              filterExpr: key is not null (type: boolean)
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int)
                  outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int)
                    sort order: +
                    Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -2440,7 +2440,7 @@ STAGE PLANS:
            keys:
              0 _col0 (type: int)
              1 _col0 (type: int)
- Statistics: Num rows: 279 Data size: 26273 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 558 Data size: 52547 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -2516,21 +2516,21 @@ STAGE PLANS:
              Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int), _col1 (type: string)
                    sort order: ++
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
        Execution mode: vectorized
        Reduce Operator Tree:
          Select Operator
            expressions: KEY.reducesinkkey0 (type: int)
            outputColumnNames: _col0
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
              table:
@@ -2546,13 +2546,13 @@ STAGE PLANS:
                key expressions: _col0 (type: int)
                sort order: +
                Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 121 Data size: 11374 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 242 Data size: 22748 Basic stats: COMPLETE Column stats: NONE
            TableScan
              Reduce Output Operator
                key expressions: _col0 (type: int)
                sort order: +
                Map-reduce partition columns: _col0 (type: int)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Reduce Operator Tree:
          Join Operator
            condition map:
@@ -2560,7 +2560,7 @@ STAGE PLANS:
            keys:
              0 _col0 (type: int)
              1 _col0 (type: int)
- Statistics: Num rows: 275 Data size: 25850 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 550 Data size: 51700 Basic stats: COMPLETE Column stats: NONE
            Group By Operator
              aggregations: count()
              mode: hash
@@ -2604,21 +2604,21 @@ STAGE PLANS:
              Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
              Filter Operator
                predicate: key is not null (type: boolean)
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: key (type: int), value (type: string)
                  outputColumnNames: _col0, _col1
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
                  Reduce Output Operator
                    key expressions: _col0 (type: int), _col1 (type: string)
                    sort order: ++
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
        Execution mode: vectorized
        Reduce Operator Tree:
          Select Operator
            expressions: KEY.reducesinkkey0 (type: int)
            outputColumnNames: _col0
- Statistics: Num rows: 250 Data size: 23500 Basic stats: COMPLETE Column stats: NONE
+ Statistics: Num rows: 500 Data size: 47000 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
              table:
@@ -2659,7 +2659,6 @@ POSTHOOK: Input: default@tab_part
  POSTHOOK: Input: default@tab_part@ds=2008-04-08
  #### A masked pattern was here ####
  480
-Warning: Shuffle Join JOIN[8][tables = [$hdt$_0, $hdt$_1]] in Stage 'Stage-1:MAPRED' is a cross product
  PREHOOK: query: select * from (select * from tab where tab.key = 0)a full outer join (select * from tab_part where tab_part.key = 98)b on a.key = b.key
  PREHOOK: type: QUERY
  PREHOOK: Input: default@tab
@@ -2679,29 +2678,29 @@ POSTHOOK: Input: default@tab_part@ds=2008-04-08
  0 val_0 2008-04-08 NULL NULL NULL
  NULL NULL NULL 98 val_98 2008-04-08
  NULL NULL NULL 98 val_98 2008-04-08
-Warning: Shuffle Join JOIN[10][tables = [$hdt$_0, $hdt$_1]] in Stage 'Stage-1:MAPRED' is a cross product
  PREHOOK: query: select * from (select * from tab where tab.key = 0)a right outer join (select * from tab_part where tab_part.key = 98)b on a.key = b.key
  PREHOOK: type: QUERY
  PREHOOK: Input: default@tab
+PREHOOK: Input: default@tab@ds=2008-04-08
  PREHOOK: Input: default@tab_part
  PREHOOK: Input: default@tab_part@ds=2008-04-08
  #### A masked pattern was here ####
  POSTHOOK: query: select * from (select * from tab where tab.key = 0)a right outer join (select * from tab_part where tab_part.key = 98)b on a.key = b.key
  POSTHOOK: type: QUERY
  POSTHOOK: Input: default@tab
+POSTHOOK: Input: default@tab@ds=2008-04-08
  POSTHOOK: Input: default@tab_part
  POSTHOOK: Input: default@tab_part@ds=2008-04-08
  #### A masked pattern was here ####
  NULL NULL NULL 98 val_98 2008-04-08
  NULL NULL NULL 98 val_98 2008-04-08
-Warning: Shuffle Join JOIN[16][tables = [$hdt$_0, $hdt$_1, $hdt$_2]] in Stage 'Stage-2:MAPRED' is a cross product
-Warning: Shuffle Join JOIN[13][tables = [$hdt$_0, $hdt$_1]] in Stage 'Stage-1:MAPRED' is a cross product
  PREHOOK: query: select * from
  (select * from tab where tab.key = 0)a
  full outer join
  (select * from tab_part where tab_part.key = 98)b join tab_part c on a.key = b.key and b.key = c.key
  PREHOOK: type: QUERY
  PREHOOK: Input: default@tab
+PREHOOK: Input: default@tab@ds=2008-04-08
  PREHOOK: Input: default@tab_part
  PREHOOK: Input: default@tab_part@ds=2008-04-08
  #### A masked pattern was here ####
@@ -2711,10 +2710,10 @@ full outer join
  (select * from tab_part where tab_part.key = 98)b join tab_part c on a.key = b.key and b.key = c.key
  POSTHOOK: type: QUERY
  POSTHOOK: Input: default@tab
+POSTHOOK: Input: default@tab@ds=2008-04-08
  POSTHOOK: Input: default@tab_part
  POSTHOOK: Input: default@tab_part@ds=2008-04-08
  #### A masked pattern was here ####
-Warning: Shuffle Join JOIN[10][tables = [$hdt$_0, $hdt$_1]] in Stage 'Stage-1:MAPRED' is a cross product
  PREHOOK: query: select * from
  (select * from tab where tab.key = 0)a
  full outer join
@@ -2739,7 +2738,6 @@ NULL NULL NULL 98 val_98 2008-04-08 98 val_98 2008-04-08
  NULL NULL NULL 98 val_98 2008-04-08 98 val_98 2008-04-08
  NULL NULL NULL 98 val_98 2008-04-08 98 val_98 2008-04-08
  NULL NULL NULL 98 val_98 2008-04-08 98 val_98 2008-04-08
-Warning: Shuffle Join JOIN[14][tables = [$hdt$_0, $hdt$_1, $hdt$_2]] in Stage 'Stage-2:MAPRED' is a cross product
  Warning: Shuffle Join JOIN[11][tables = [$hdt$_0, $hdt$_1]] in Stage 'Stage-1:MAPRED' is a cross product
  PREHOOK: query: select * from
  (select * from tab where tab.key = 0)a
@@ -3267,14 +3265,13 @@ NULL NULL NULL NULL NULL NULL 97 val_97 2008-04-08
  NULL NULL NULL NULL NULL NULL 97 val_97 2008-04-08
  NULL NULL NULL NULL NULL NULL 98 val_98 2008-04-08
  NULL NULL NULL NULL NULL NULL 98 val_98 2008-04-08
-Warning: Shuffle Join JOIN[14][tables = [$hdt$_0, $hdt$_1, $hdt$_2]] in Stage 'Stage-2:MAPRED' is a cross product
-Warning: Shuffle Join JOIN[11][tables = [$hdt$_0, $hdt$_1]] in Stage 'Stage-1:MAPRED' is a cross product
  PREHOOK: query: select * from
  (select * from tab where tab.key = 0)a
  join
  (select * from tab_part where tab_part.key = 98)b on a.key = b.key full outer join tab_part c on b.key = c.key
  PREHOOK: type: QUERY
  PREHOOK: Input: default@tab
+PREHOOK: Input: default@tab@ds=2008-04-08
  PREHOOK: Input: default@tab_part
  PREHOOK: Input: default@tab_part@ds=2008-04-08
  #### A masked pattern was here ####
@@ -3284,6 +3281,7 @@ join
  (select * from tab_part where tab_part.key = 98)b on a.key = b.key full outer join tab_part c on b.key = c.key
  POSTHOOK: type: QUERY
  POSTHOOK: Input: default@tab
+POSTHOOK: Input: default@tab@ds=2008-04-08
  POSTHOOK: Input: default@tab_part
  POSTHOOK: Input: default@tab_part@ds=2008-04-08
  #### A masked pattern was here ####

http://git-wip-us.apache.org/repos/asf/hive/blob/d8ee05ae/ql/src/test/results/clientpositive/mergejoins.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/mergejoins.q.out b/ql/src/test/results/clientpositive/mergejoins.q.out
index 02f8f06..9010410 100644
--- a/ql/src/test/results/clientpositive/mergejoins.q.out
+++ b/ql/src/test/results/clientpositive/mergejoins.q.out
@@ -201,29 +201,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/d8ee05ae/ql/src/test/results/clientpositive/mergejoins_mixed.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/mergejoins_mixed.q.out b/ql/src/test/results/clientpositive/mergejoins_mixed.q.out
index def3b91..10f37f9 100644
--- a/ql/src/test/results/clientpositive/mergejoins_mixed.q.out
+++ b/ql/src/test/results/clientpositive/mergejoins_mixed.q.out
@@ -29,29 +29,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -122,29 +128,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -215,29 +227,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -308,29 +326,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -404,29 +428,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -526,29 +556,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -648,29 +684,35 @@ STAGE PLANS:
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Select Operator
- expressions: key (type: string), value (type: string)
- outputColumnNames: _col0, _col1
+ Filter Operator
+ predicate: key is not null (type: boolean)
                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- Reduce Output Operator
- key expressions: _col0 (type: string)
- sort order: +
- Map-reduce partition columns: _col0 (type: string)
+ Select Operator
+ expressions: key (type: string), value (type: string)
+ outputColumnNames: _col0, _col1
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
- value expressions: _col1 (type: string)
+ Reduce Output Operator
+ key expressions: _col0 (type: string)
+ sort order: +
+ Map-reduce partition columns: _col0 (type: string)
+ Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
+ value expressions: _col1 (type: string)
            TableScan
              alias: a
              Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/d8ee05ae/ql/src/test/results/clientpositive/metadataonly1.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/metadataonly1.q.out b/ql/src/test/results/clientpositive/metadataonly1.q.out
index bb8bdfa..8da7564 100644
--- a/ql/src/test/results/clientpositive/metadataonly1.q.out
+++ b/ql/src/test/results/clientpositive/metadataonly1.q.out
@@ -622,8 +622,8 @@ STAGE PLANS:
                    value expressions: _col0 (type: string)
                    auto parallelism: false
        Path -> Alias:
- -mr-10006default.test1{ds=1} [$hdt$_1:a2]
- -mr-10007default.test1{ds=2} [$hdt$_1:a2]
+ -mr-10006default.test1{ds=1} [$hdt$_1:$hdt$_1:a2]
+ -mr-10007default.test1{ds=2} [$hdt$_1:$hdt$_1:a2]
        Path -> Partition:
          -mr-10006default.test1{ds=1}
            Partition
@@ -704,8 +704,8 @@ STAGE PLANS:
                name: default.test1
              name: default.test1
        Truncated Path -> Alias:
- -mr-10006default.test1{ds=1} [$hdt$_1:a2]
- -mr-10007default.test1{ds=2} [$hdt$_1:a2]
+ -mr-10006default.test1{ds=1} [$hdt$_1:$hdt$_1:a2]
+ -mr-10007default.test1{ds=2} [$hdt$_1:$hdt$_1:a2]
        Needs Tagging: false
        Reduce Operator Tree:
          Group By Operator

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