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From ser...@apache.org
Subject [15/41] hive git commit: HIVE-11678 : Add AggregateProjectMergeRule (Ashutosh Chauhan via Jesus Camacho Rodriguez)
Date Fri, 18 Sep 2015 20:35:20 GMT
http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/having.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/having.q.out b/ql/src/test/results/clientpositive/tez/having.q.out
index 80f02de..31de85a 100644
--- a/ql/src/test/results/clientpositive/tez/having.q.out
+++ b/ql/src/test/results/clientpositive/tez/having.q.out
@@ -110,22 +110,18 @@ STAGE PLANS:
                   Filter Operator
                     predicate: (UDFToDouble(key) <> 302.0) (type: boolean)
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      aggregations: max(value)
+                      keys: key (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        aggregations: max(_col1)
-                        keys: _col0 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      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
-                        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)
+                        value expressions: _col1 (type: string)
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator
@@ -486,11 +482,11 @@ STAGE PLANS:
                   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
+                    outputColumnNames: key, value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col1)
-                      keys: _col0 (type: string)
+                      aggregations: max(value)
+                      keys: key (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
@@ -759,22 +755,18 @@ STAGE PLANS:
                   Filter Operator
                     predicate: (UDFToDouble(key) > 300.0) (type: boolean)
                     Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      aggregations: max(value)
+                      keys: key (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        aggregations: max(_col1)
-                        keys: _col0 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      Reduce Output Operator
+                        key expressions: _col0 (type: string)
+                        sort order: +
+                        Map-reduce partition columns: _col0 (type: string)
                         Statistics: Num rows: 166 Data size: 1763 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: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                          value expressions: _col1 (type: string)
+                        value expressions: _col1 (type: string)
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator
@@ -959,11 +951,11 @@ STAGE PLANS:
                   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
+                    outputColumnNames: key, value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col1)
-                      keys: _col0 (type: string)
+                      aggregations: max(value)
+                      keys: key (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
@@ -1227,11 +1219,11 @@ STAGE PLANS:
                   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
+                    outputColumnNames: key, value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col1)
-                      keys: _col0 (type: string)
+                      aggregations: count(value)
+                      keys: key (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/limit_pushdown.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/limit_pushdown.q.out b/ql/src/test/results/clientpositive/tez/limit_pushdown.q.out
index 01ccae7..14d57e3 100644
--- a/ql/src/test/results/clientpositive/tez/limit_pushdown.q.out
+++ b/ql/src/test/results/clientpositive/tez/limit_pushdown.q.out
@@ -384,10 +384,10 @@ STAGE PLANS:
                   Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: cdouble (type: double)
-                    outputColumnNames: _col0
+                    outputColumnNames: cdouble
                     Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: double)
+                      keys: cdouble (type: double)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
@@ -473,10 +473,10 @@ STAGE PLANS:
                   Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: ctinyint (type: tinyint), cdouble (type: double)
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: ctinyint, cdouble
                     Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: tinyint), _col1 (type: double)
+                      keys: ctinyint (type: tinyint), cdouble (type: double)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
@@ -567,10 +567,10 @@ STAGE PLANS:
                   Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: ctinyint (type: tinyint), cdouble (type: double)
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: ctinyint, cdouble
                     Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: tinyint), _col1 (type: double)
+                      keys: ctinyint (type: tinyint), cdouble (type: double)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
@@ -663,11 +663,11 @@ STAGE PLANS:
                   Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: ctinyint (type: tinyint), cstring1 (type: string), cstring2 (type: string)
-                    outputColumnNames: _col0, _col1, _col2
+                    outputColumnNames: ctinyint, cstring1, cstring2
                     Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(DISTINCT _col1), count(DISTINCT _col2)
-                      keys: _col0 (type: tinyint), _col1 (type: string), _col2 (type: string)
+                      aggregations: count(DISTINCT cstring1), count(DISTINCT cstring2)
+                      keys: ctinyint (type: tinyint), cstring1 (type: string), cstring2 (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3, _col4
                       Statistics: Num rows: 12288 Data size: 2641964 Basic stats: COMPLETE Column stats: NONE
@@ -783,11 +783,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: value (type: string), key (type: string)
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: value, key
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: sum(_col1)
-                      keys: _col0 (type: string)
+                      aggregations: sum(key)
+                      keys: value (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
@@ -1042,16 +1042,16 @@ STAGE PLANS:
                   alias: src
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
-                    expressions: value (type: string), key (type: string)
-                    outputColumnNames: _col0, _col1
+                    expressions: key (type: string), value (type: string)
+                    outputColumnNames: key, value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Reduce Output Operator
-                      key expressions: _col0 (type: string)
+                      key expressions: value (type: string)
                       sort order: +
-                      Map-reduce partition columns: _col0 (type: string)
+                      Map-reduce partition columns: value (type: string)
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       TopN Hash Memory Usage: 0.3
-                      value expressions: _col1 (type: string)
+                      value expressions: key (type: string)
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/mapjoin_mapjoin.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/mapjoin_mapjoin.q.out b/ql/src/test/results/clientpositive/tez/mapjoin_mapjoin.q.out
index 23df010..0bf689b 100644
--- a/ql/src/test/results/clientpositive/tez/mapjoin_mapjoin.q.out
+++ b/ql/src/test/results/clientpositive/tez/mapjoin_mapjoin.q.out
@@ -617,22 +617,18 @@ STAGE PLANS:
                             1 Map 4
                           Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                           HybridGraceHashJoin: true
-                          Select Operator
-                            expressions: _col2 (type: string)
-                            outputColumnNames: _col0
+                          Group By Operator
+                            aggregations: count()
+                            keys: _col2 (type: string)
+                            mode: hash
+                            outputColumnNames: _col0, _col1
                             Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
-                            Group By Operator
-                              aggregations: count()
-                              keys: _col0 (type: string)
-                              mode: hash
-                              outputColumnNames: _col0, _col1
+                            Reduce Output Operator
+                              key expressions: _col0 (type: string)
+                              sort order: +
+                              Map-reduce partition columns: _col0 (type: string)
                               Statistics: Num rows: 605 Data size: 6427 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: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
-                                value expressions: _col1 (type: bigint)
+                              value expressions: _col1 (type: bigint)
         Map 3 
             Map Operator Tree:
                 TableScan

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/metadata_only_queries.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/metadata_only_queries.q.out b/ql/src/test/results/clientpositive/tez/metadata_only_queries.q.out
index aaea52e..f43440e 100644
--- a/ql/src/test/results/clientpositive/tez/metadata_only_queries.q.out
+++ b/ql/src/test/results/clientpositive/tez/metadata_only_queries.q.out
@@ -448,10 +448,10 @@ STAGE PLANS:
                   Statistics: Num rows: 9489 Data size: 978785 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: ts (type: timestamp)
-                    outputColumnNames: _col0
+                    outputColumnNames: ts
                     Statistics: Num rows: 9489 Data size: 978785 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col0)
+                      aggregations: count(ts)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/metadataonly1.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/metadataonly1.q.out b/ql/src/test/results/clientpositive/tez/metadataonly1.q.out
index 927b686..b55cb7e 100644
--- a/ql/src/test/results/clientpositive/tez/metadataonly1.q.out
+++ b/ql/src/test/results/clientpositive/tez/metadataonly1.q.out
@@ -48,10 +48,10 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: ds
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col0)
+                      aggregations: max(ds)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 84 Basic stats: COMPLETE Column stats: NONE
@@ -155,10 +155,10 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: ds
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col0)
+                      aggregations: max(ds)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 84 Basic stats: COMPLETE Column stats: NONE
@@ -301,11 +301,11 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: ds
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: count(DISTINCT _col0)
-                      keys: _col0 (type: string)
+                      aggregations: count(DISTINCT ds)
+                      keys: ds (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -448,10 +448,10 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: ds
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col0)
+                      aggregations: count(ds)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
@@ -736,10 +736,10 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: ds
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col0)
+                      aggregations: max(ds)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 84 Basic stats: COMPLETE Column stats: NONE
@@ -1017,11 +1017,11 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string), hr (type: string)
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: ds, hr
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: count(DISTINCT _col1)
-                      keys: _col0 (type: string), _col1 (type: string)
+                      aggregations: count(DISTINCT hr)
+                      keys: ds (type: string), hr (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
                       Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -1261,11 +1261,11 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string), hr (type: string)
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: ds, hr
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col1)
-                      keys: _col0 (type: string)
+                      aggregations: count(hr)
+                      keys: ds (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
@@ -1500,10 +1500,10 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: ds
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col0)
+                      aggregations: max(ds)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 84 Basic stats: COMPLETE Column stats: NONE
@@ -1746,11 +1746,11 @@ STAGE PLANS:
                   GatherStats: false
                   Select Operator
                     expressions: ds (type: string), hr (type: string)
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: ds, hr
                     Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Group By Operator
-                      aggregations: count(DISTINCT _col1)
-                      keys: _col0 (type: string), _col1 (type: string)
+                      aggregations: count(DISTINCT hr)
+                      keys: ds (type: string), hr (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
                       Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/mrr.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/mrr.q.out b/ql/src/test/results/clientpositive/tez/mrr.q.out
index efbd02d..faace21 100644
--- a/ql/src/test/results/clientpositive/tez/mrr.q.out
+++ b/ql/src/test/results/clientpositive/tez/mrr.q.out
@@ -27,11 +27,11 @@ STAGE PLANS:
                   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
+                    outputColumnNames: key, value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col1)
-                      keys: _col0 (type: string)
+                      aggregations: count(value)
+                      keys: key (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
@@ -1304,22 +1304,18 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      aggregations: count(value)
+                      keys: key (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        aggregations: count(_col1)
-                        keys: _col0 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      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
-                        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
-                          value expressions: _col1 (type: bigint)
+                        value expressions: _col1 (type: bigint)
         Map 6 
             Map Operator Tree:
                 TableScan
@@ -1328,22 +1324,18 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      aggregations: count(value)
+                      keys: key (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        aggregations: count(_col1)
-                        keys: _col0 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      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
-                        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
-                          value expressions: _col1 (type: bigint)
+                        value expressions: _col1 (type: bigint)
         Map 9 
             Map Operator Tree:
                 TableScan
@@ -1352,22 +1344,18 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      aggregations: count(value)
+                      keys: key (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        aggregations: count(_col1)
-                        keys: _col0 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      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
-                        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
-                          value expressions: _col1 (type: bigint)
+                        value expressions: _col1 (type: bigint)
         Reducer 10 
             Reduce Operator Tree:
               Group By Operator
@@ -1692,22 +1680,18 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      aggregations: count(value)
+                      keys: key (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        aggregations: count(_col1)
-                        keys: _col0 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      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
-                        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
-                          value expressions: _col1 (type: bigint)
+                        value expressions: _col1 (type: bigint)
         Map 3 
             Map Operator Tree:
                 TableScan

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/selectDistinctStar.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/selectDistinctStar.q.out b/ql/src/test/results/clientpositive/tez/selectDistinctStar.q.out
index 0a091da..22ac115 100644
--- a/ql/src/test/results/clientpositive/tez/selectDistinctStar.q.out
+++ b/ql/src/test/results/clientpositive/tez/selectDistinctStar.q.out
@@ -24,10 +24,10 @@ STAGE PLANS:
                   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
+                    outputColumnNames: key, value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: string), _col1 (type: string)
+                      keys: key (type: string), value (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
@@ -718,20 +718,16 @@ STAGE PLANS:
                   Filter Operator
                     predicate: (key < '3') (type: boolean)
                     Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      keys: key (type: string), value (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        keys: _col0 (type: string), _col1 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      Reduce Output Operator
+                        key expressions: _col0 (type: string), _col1 (type: string)
+                        sort order: ++
+                        Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
                         Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                        Reduce Output Operator
-                          key expressions: _col0 (type: string), _col1 (type: string)
-                          sort order: ++
-                          Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
-                          Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator
@@ -2474,10 +2470,10 @@ STAGE PLANS:
                   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
+                    outputColumnNames: key, value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: string), _col1 (type: string)
+                      keys: key (type: string), value (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
@@ -3164,20 +3160,16 @@ STAGE PLANS:
                   Filter Operator
                     predicate: (key < '3') (type: boolean)
                     Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      keys: key (type: string), value (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        keys: _col0 (type: string), _col1 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      Reduce Output Operator
+                        key expressions: _col0 (type: string), _col1 (type: string)
+                        sort order: ++
+                        Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
                         Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
-                        Reduce Output Operator
-                          key expressions: _col0 (type: string), _col1 (type: string)
-                          sort order: ++
-                          Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
-                          Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/stats_only_null.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/stats_only_null.q.out b/ql/src/test/results/clientpositive/tez/stats_only_null.q.out
index eabda89..0412052 100644
--- a/ql/src/test/results/clientpositive/tez/stats_only_null.q.out
+++ b/ql/src/test/results/clientpositive/tez/stats_only_null.q.out
@@ -90,10 +90,10 @@ STAGE PLANS:
                   Statistics: Num rows: 10 Data size: 120 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: a (type: double), b (type: int), c (type: string), d (type: smallint)
-                    outputColumnNames: _col0, _col1, _col2, _col3
+                    outputColumnNames: a, b, c, d
                     Statistics: Num rows: 10 Data size: 120 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(), count(_col0), count(_col1), count(_col2), count(_col3)
+                      aggregations: count(), count(a), count(b), count(c), count(d)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3, _col4
                       Statistics: Num rows: 1 Data size: 40 Basic stats: COMPLETE Column stats: NONE
@@ -146,10 +146,10 @@ STAGE PLANS:
                   Statistics: Num rows: 10 Data size: 120 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: a (type: double), b (type: int), c (type: string), d (type: smallint)
-                    outputColumnNames: _col0, _col1, _col2, _col3
+                    outputColumnNames: a, b, c, d
                     Statistics: Num rows: 10 Data size: 120 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(), count(_col0), count(_col1), count(_col2), count(_col3)
+                      aggregations: count(), count(a), count(b), count(c), count(d)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3, _col4
                       Statistics: Num rows: 1 Data size: 40 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/subquery_in.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/subquery_in.q.out b/ql/src/test/results/clientpositive/tez/subquery_in.q.out
index 2b1237b..add2c52 100644
--- a/ql/src/test/results/clientpositive/tez/subquery_in.q.out
+++ b/ql/src/test/results/clientpositive/tez/subquery_in.q.out
@@ -646,20 +646,16 @@ STAGE PLANS:
                   Filter Operator
                     predicate: ((key > '9') and value is not null) (type: boolean)
                     Statistics: Num rows: 83 Data size: 881 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: string), value (type: string)
+                    Group By Operator
+                      keys: key (type: string), value (type: string)
+                      mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 83 Data size: 881 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        keys: _col0 (type: string), _col1 (type: string)
-                        mode: hash
-                        outputColumnNames: _col0, _col1
+                      Reduce Output Operator
+                        key expressions: _col0 (type: string), _col1 (type: string)
+                        sort order: ++
+                        Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
                         Statistics: Num rows: 83 Data size: 881 Basic stats: COMPLETE Column stats: NONE
-                        Reduce Output Operator
-                          key expressions: _col0 (type: string), _col1 (type: string)
-                          sort order: ++
-                          Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
-                          Statistics: Num rows: 83 Data size: 881 Basic stats: COMPLETE Column stats: NONE
         Reducer 2 
             Reduce Operator Tree:
               Merge Join Operator
@@ -829,20 +825,16 @@ STAGE PLANS:
                   Filter Operator
                     predicate: l_partkey is not null (type: boolean)
                     Statistics: Num rows: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: l_partkey (type: int)
+                    Group By Operator
+                      keys: l_partkey (type: int)
+                      mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        keys: _col0 (type: int)
-                        mode: hash
-                        outputColumnNames: _col0
+                      Reduce Output Operator
+                        key expressions: _col0 (type: int)
+                        sort order: +
+                        Map-reduce partition columns: _col0 (type: int)
                         Statistics: Num rows: 50 Data size: 5999 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: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
         Reducer 2 
             Reduce Operator Tree:
               Merge Join Operator

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/tez_dml.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/tez_dml.q.out b/ql/src/test/results/clientpositive/tez/tez_dml.q.out
index ae85292..728eb6b 100644
--- a/ql/src/test/results/clientpositive/tez/tez_dml.q.out
+++ b/ql/src/test/results/clientpositive/tez/tez_dml.q.out
@@ -30,11 +30,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: value (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: value
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col0)
-                      keys: _col0 (type: string)
+                      aggregations: count(value)
+                      keys: value (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/union5.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/union5.q.out b/ql/src/test/results/clientpositive/tez/union5.q.out
index 327195c..9939b7d 100644
--- a/ql/src/test/results/clientpositive/tez/union5.q.out
+++ b/ql/src/test/results/clientpositive/tez/union5.q.out
@@ -31,33 +31,37 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
-                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
-                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
+                    expressions: key (type: string)
+                    outputColumnNames: key
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(1)
+                      aggregations: count(key)
                       mode: hash
                       outputColumnNames: _col0
-                      Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                      Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         sort order: 
-                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col0 (type: bigint)
         Map 5 
             Map Operator Tree:
                 TableScan
                   alias: s1
-                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
-                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
+                    expressions: key (type: string)
+                    outputColumnNames: key
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(1)
+                      aggregations: count(key)
                       mode: hash
                       outputColumnNames: _col0
-                      Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                      Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         sort order: 
-                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col0 (type: bigint)
         Reducer 2 
             Reduce Operator Tree:
@@ -65,22 +69,22 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                 Select Operator
                   expressions: 'tst1' (type: string)
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 88 Basic stats: COMPLETE Column stats: COMPLETE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                   Group By Operator
                     aggregations: count(1)
                     keys: _col0 (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: COMPLETE
+                    Statistics: Num rows: 2 Data size: 16 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: 1 Data size: 96 Basic stats: COMPLETE Column stats: COMPLETE
+                      Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE
                       value expressions: _col1 (type: bigint)
         Reducer 4 
             Reduce Operator Tree:
@@ -89,10 +93,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: COMPLETE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: COMPLETE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -103,22 +107,22 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                 Select Operator
                   expressions: 'tst2' (type: string)
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 88 Basic stats: COMPLETE Column stats: COMPLETE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                   Group By Operator
                     aggregations: count(1)
                     keys: _col0 (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: COMPLETE
+                    Statistics: Num rows: 2 Data size: 16 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: 1 Data size: 96 Basic stats: COMPLETE Column stats: COMPLETE
+                      Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE
                       value expressions: _col1 (type: bigint)
         Union 3 
             Vertex: Union 3

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/union7.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/union7.q.out b/ql/src/test/results/clientpositive/tez/union7.q.out
index c5ece62..7a02993 100644
--- a/ql/src/test/results/clientpositive/tez/union7.q.out
+++ b/ql/src/test/results/clientpositive/tez/union7.q.out
@@ -31,17 +31,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
-                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
-                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
+                    expressions: key (type: string)
+                    outputColumnNames: key
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(1)
+                      aggregations: count(key)
                       mode: hash
                       outputColumnNames: _col0
-                      Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                      Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         sort order: 
-                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col0 (type: bigint)
         Map 5 
             Map Operator Tree:
@@ -57,12 +59,12 @@ STAGE PLANS:
                       keys: _col0 (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
+                      Statistics: Num rows: 26 Data size: 199 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: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
+                        Statistics: Num rows: 26 Data size: 199 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col1 (type: bigint)
         Reducer 2 
             Reduce Operator Tree:
@@ -70,22 +72,22 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                 Select Operator
                   expressions: 'tst1' (type: string)
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 88 Basic stats: COMPLETE Column stats: COMPLETE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                   Group By Operator
                     aggregations: count(1)
                     keys: _col0 (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
+                    Statistics: Num rows: 26 Data size: 199 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: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
+                      Statistics: Num rows: 26 Data size: 199 Basic stats: COMPLETE Column stats: NONE
                       value expressions: _col1 (type: bigint)
         Reducer 4 
             Reduce Operator Tree:
@@ -94,10 +96,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 13 Data size: 99 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/1cce5f00/ql/src/test/results/clientpositive/tez/unionDistinct_1.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/unionDistinct_1.q.out b/ql/src/test/results/clientpositive/tez/unionDistinct_1.q.out
index cab3a28..bcae2fc 100644
--- a/ql/src/test/results/clientpositive/tez/unionDistinct_1.q.out
+++ b/ql/src/test/results/clientpositive/tez/unionDistinct_1.q.out
@@ -14059,11 +14059,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: key (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: key
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count()
-                      keys: _col0 (type: string)
+                      keys: key (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
@@ -14202,11 +14202,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: key (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: key
                     Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count()
-                      keys: _col0 (type: string)
+                      keys: key (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_aggregate_9.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_aggregate_9.q.out b/ql/src/test/results/clientpositive/tez/vector_aggregate_9.q.out
index 382380e..d6a8517 100644
--- a/ql/src/test/results/clientpositive/tez/vector_aggregate_9.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_aggregate_9.q.out
@@ -125,10 +125,10 @@ STAGE PLANS:
                   Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: dc (type: decimal(38,18))
-                    outputColumnNames: _col0
+                    outputColumnNames: dc
                     Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: min(_col0), max(_col0), sum(_col0), avg(_col0)
+                      aggregations: min(dc), max(dc), sum(dc), avg(dc)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
                       Statistics: Num rows: 1 Data size: 336 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_binary_join_groupby.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_binary_join_groupby.q.out b/ql/src/test/results/clientpositive/tez/vector_binary_join_groupby.q.out
index 8dcd40d..ebc0466 100644
--- a/ql/src/test/results/clientpositive/tez/vector_binary_join_groupby.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_binary_join_groupby.q.out
@@ -221,11 +221,11 @@ STAGE PLANS:
                   Statistics: Num rows: 100 Data size: 29638 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: bin (type: binary)
-                    outputColumnNames: _col0
+                    outputColumnNames: bin
                     Statistics: Num rows: 100 Data size: 29638 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count()
-                      keys: _col0 (type: binary)
+                      keys: bin (type: binary)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 100 Data size: 29638 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_count_distinct.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_count_distinct.q.out b/ql/src/test/results/clientpositive/tez/vector_count_distinct.q.out
index 95863a3..f46bcd9 100644
--- a/ql/src/test/results/clientpositive/tez/vector_count_distinct.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_count_distinct.q.out
@@ -1258,10 +1258,10 @@ STAGE PLANS:
                   Statistics: Num rows: 2000 Data size: 3504000 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: ws_order_number (type: int)
-                    outputColumnNames: _col0
+                    outputColumnNames: ws_order_number
                     Statistics: Num rows: 2000 Data size: 3504000 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: int)
+                      keys: ws_order_number (type: int)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 2000 Data size: 3504000 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_decimal_aggregate.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_decimal_aggregate.q.out b/ql/src/test/results/clientpositive/tez/vector_decimal_aggregate.q.out
index 2e9c232..13e047b 100644
--- a/ql/src/test/results/clientpositive/tez/vector_decimal_aggregate.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_decimal_aggregate.q.out
@@ -54,11 +54,11 @@ STAGE PLANS:
                   Statistics: Num rows: 12288 Data size: 2165060 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: cint (type: int), cdecimal1 (type: decimal(20,10)), cdecimal2 (type: decimal(23,14))
-                    outputColumnNames: _col0, _col1, _col2
+                    outputColumnNames: cint, cdecimal1, cdecimal2
                     Statistics: Num rows: 12288 Data size: 2165060 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col1), max(_col1), min(_col1), sum(_col1), count(_col2), max(_col2), min(_col2), sum(_col2), count()
-                      keys: _col0 (type: int)
+                      aggregations: count(cdecimal1), max(cdecimal1), min(cdecimal1), sum(cdecimal1), count(cdecimal2), max(cdecimal2), min(cdecimal2), sum(cdecimal2), count()
+                      keys: cint (type: int)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6, _col7, _col8, _col9
                       Statistics: Num rows: 12288 Data size: 2165060 Basic stats: COMPLETE Column stats: NONE
@@ -159,11 +159,11 @@ STAGE PLANS:
                   Statistics: Num rows: 12288 Data size: 2165060 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: cint (type: int), cdecimal1 (type: decimal(20,10)), cdecimal2 (type: decimal(23,14))
-                    outputColumnNames: _col0, _col1, _col2
+                    outputColumnNames: cint, cdecimal1, cdecimal2
                     Statistics: Num rows: 12288 Data size: 2165060 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col1), max(_col1), min(_col1), sum(_col1), avg(_col1), stddev_pop(_col1), stddev_samp(_col1), count(_col2), max(_col2), min(_col2), sum(_col2), avg(_col2), stddev_pop(_col2), stddev_samp(_col2), count()
-                      keys: _col0 (type: int)
+                      aggregations: count(cdecimal1), max(cdecimal1), min(cdecimal1), sum(cdecimal1), avg(cdecimal1), stddev_pop(cdecimal1), stddev_samp(cdecimal1), count(cdecimal2), max(cdecimal2), min(cdecimal2), sum(cdecimal2), avg(cdecimal2), stddev_pop(cdecimal2), stddev_samp(cdecimal2), count()
+                      keys: cint (type: int)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6, _col7, _col8, _col9, _col10, _col11, _col12, _col13, _col14, _col15
                       Statistics: Num rows: 12288 Data size: 2165060 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_decimal_precision.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_decimal_precision.q.out b/ql/src/test/results/clientpositive/tez/vector_decimal_precision.q.out
index 4e1b654..8b6614e 100644
--- a/ql/src/test/results/clientpositive/tez/vector_decimal_precision.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_decimal_precision.q.out
@@ -567,10 +567,10 @@ STAGE PLANS:
                   Statistics: Num rows: 75 Data size: 3472 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: dec (type: decimal(20,10))
-                    outputColumnNames: _col0
+                    outputColumnNames: dec
                     Statistics: Num rows: 75 Data size: 3472 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: avg(_col0), sum(_col0)
+                      aggregations: avg(dec), sum(dec)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 1 Data size: 112 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_decimal_udf.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_decimal_udf.q.out b/ql/src/test/results/clientpositive/tez/vector_decimal_udf.q.out
index 13f0de2..dc929d3 100644
--- a/ql/src/test/results/clientpositive/tez/vector_decimal_udf.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_decimal_udf.q.out
@@ -1639,11 +1639,11 @@ STAGE PLANS:
                   Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: value (type: int), key (type: decimal(20,10))
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: value, key
                     Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: sum(_col1), count(_col1), avg(_col1)
-                      keys: _col0 (type: int)
+                      aggregations: sum(key), count(key), avg(key)
+                      keys: value (type: int)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
                       Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
@@ -2317,11 +2317,11 @@ STAGE PLANS:
                   Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: value (type: int), key (type: decimal(20,10))
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: value, key
                     Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: stddev(_col1), variance(_col1)
-                      keys: _col0 (type: int)
+                      aggregations: stddev(key), variance(key)
+                      keys: value (type: int)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
                       Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
@@ -2403,11 +2403,11 @@ STAGE PLANS:
                   Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: value (type: int), key (type: decimal(20,10))
-                    outputColumnNames: _col0, _col1
+                    outputColumnNames: value, key
                     Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: stddev_samp(_col1), var_samp(_col1)
-                      keys: _col0 (type: int)
+                      aggregations: stddev_samp(key), var_samp(key)
+                      keys: value (type: int)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
                       Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
@@ -2554,10 +2554,10 @@ STAGE PLANS:
                   Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: key (type: decimal(20,10))
-                    outputColumnNames: _col0
+                    outputColumnNames: key
                     Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: min(_col0)
+                      aggregations: min(key)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 112 Basic stats: COMPLETE Column stats: NONE
@@ -2621,10 +2621,10 @@ STAGE PLANS:
                   Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: key (type: decimal(20,10))
-                    outputColumnNames: _col0
+                    outputColumnNames: key
                     Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col0)
+                      aggregations: max(key)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 112 Basic stats: COMPLETE Column stats: NONE
@@ -2688,10 +2688,10 @@ STAGE PLANS:
                   Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: key (type: decimal(20,10))
-                    outputColumnNames: _col0
+                    outputColumnNames: key
                     Statistics: Num rows: 38 Data size: 4296 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: count(_col0)
+                      aggregations: count(key)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_distinct_2.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_distinct_2.q.out b/ql/src/test/results/clientpositive/tez/vector_distinct_2.q.out
index 1671ddf..6c31294 100644
--- a/ql/src/test/results/clientpositive/tez/vector_distinct_2.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_distinct_2.q.out
@@ -128,34 +128,38 @@ STAGE PLANS:
                   alias: vectortab2korc
                   Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
-                    expressions: s (type: string), t (type: tinyint)
-                    outputColumnNames: _col0, _col1
+                    expressions: t (type: tinyint), s (type: string)
+                    outputColumnNames: t, s
                     Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: string), _col1 (type: tinyint)
+                      keys: t (type: tinyint), s (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
-                        key expressions: _col0 (type: string), _col1 (type: tinyint)
+                        key expressions: _col0 (type: tinyint), _col1 (type: string)
                         sort order: ++
-                        Map-reduce partition columns: _col0 (type: string), _col1 (type: tinyint)
+                        Map-reduce partition columns: _col0 (type: tinyint), _col1 (type: string)
                         Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
             Execution mode: vectorized
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator
-                keys: KEY._col0 (type: string), KEY._col1 (type: tinyint)
+                keys: KEY._col0 (type: tinyint), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
                 Statistics: Num rows: 1000 Data size: 459356 Basic stats: COMPLETE Column stats: NONE
-                File Output Operator
-                  compressed: false
+                Select Operator
+                  expressions: _col1 (type: string), _col0 (type: tinyint)
+                  outputColumnNames: _col0, _col1
                   Statistics: Num rows: 1000 Data size: 459356 Basic stats: COMPLETE Column stats: NONE
-                  table:
-                      input format: org.apache.hadoop.mapred.TextInputFormat
-                      output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                      serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+                  File Output Operator
+                    compressed: false
+                    Statistics: Num rows: 1000 Data size: 459356 Basic stats: COMPLETE Column stats: NONE
+                    table:
+                        input format: org.apache.hadoop.mapred.TextInputFormat
+                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
             Execution mode: vectorized
 
   Stage: Stage-0

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_groupby_3.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_groupby_3.q.out b/ql/src/test/results/clientpositive/tez/vector_groupby_3.q.out
index 9b9dcdd..6aa39f1 100644
--- a/ql/src/test/results/clientpositive/tez/vector_groupby_3.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_groupby_3.q.out
@@ -128,19 +128,19 @@ STAGE PLANS:
                   alias: vectortab2korc
                   Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
-                    expressions: s (type: string), t (type: tinyint), b (type: bigint)
-                    outputColumnNames: _col0, _col1, _col2
+                    expressions: t (type: tinyint), s (type: string), b (type: bigint)
+                    outputColumnNames: t, s, b
                     Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      aggregations: max(_col2)
-                      keys: _col0 (type: string), _col1 (type: tinyint)
+                      aggregations: max(b)
+                      keys: t (type: tinyint), s (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
                       Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
-                        key expressions: _col0 (type: string), _col1 (type: tinyint)
+                        key expressions: _col0 (type: tinyint), _col1 (type: string)
                         sort order: ++
-                        Map-reduce partition columns: _col0 (type: string), _col1 (type: tinyint)
+                        Map-reduce partition columns: _col0 (type: tinyint), _col1 (type: string)
                         Statistics: Num rows: 2000 Data size: 918712 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col2 (type: bigint)
             Execution mode: vectorized
@@ -148,17 +148,21 @@ STAGE PLANS:
             Reduce Operator Tree:
               Group By Operator
                 aggregations: max(VALUE._col0)
-                keys: KEY._col0 (type: string), KEY._col1 (type: tinyint)
+                keys: KEY._col0 (type: tinyint), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1, _col2
                 Statistics: Num rows: 1000 Data size: 459356 Basic stats: COMPLETE Column stats: NONE
-                File Output Operator
-                  compressed: false
+                Select Operator
+                  expressions: _col1 (type: string), _col0 (type: tinyint), _col2 (type: bigint)
+                  outputColumnNames: _col0, _col1, _col2
                   Statistics: Num rows: 1000 Data size: 459356 Basic stats: COMPLETE Column stats: NONE
-                  table:
-                      input format: org.apache.hadoop.mapred.TextInputFormat
-                      output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                      serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+                  File Output Operator
+                    compressed: false
+                    Statistics: Num rows: 1000 Data size: 459356 Basic stats: COMPLETE Column stats: NONE
+                    table:
+                        input format: org.apache.hadoop.mapred.TextInputFormat
+                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
             Execution mode: vectorized
 
   Stage: Stage-0

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_groupby_reduce.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_groupby_reduce.q.out b/ql/src/test/results/clientpositive/tez/vector_groupby_reduce.q.out
index ba2fb77..814ee39 100644
--- a/ql/src/test/results/clientpositive/tez/vector_groupby_reduce.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_groupby_reduce.q.out
@@ -245,10 +245,10 @@ STAGE PLANS:
                   Statistics: Num rows: 1000 Data size: 88276 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: ss_ticket_number (type: int)
-                    outputColumnNames: _col0
+                    outputColumnNames: ss_ticket_number
                     Statistics: Num rows: 1000 Data size: 88276 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: int)
+                      keys: ss_ticket_number (type: int)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1000 Data size: 88276 Basic stats: COMPLETE Column stats: NONE
@@ -369,10 +369,10 @@ STAGE PLANS:
                   Statistics: Num rows: 1000 Data size: 88276 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: ss_ticket_number (type: int)
-                    outputColumnNames: _col0
+                    outputColumnNames: ss_ticket_number
                     Statistics: Num rows: 1000 Data size: 88276 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: int)
+                      keys: ss_ticket_number (type: int)
                       mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 1000 Data size: 88276 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_grouping_sets.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_grouping_sets.q.out b/ql/src/test/results/clientpositive/tez/vector_grouping_sets.q.out
index 688d2ac..6d39d02 100644
--- a/ql/src/test/results/clientpositive/tez/vector_grouping_sets.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_grouping_sets.q.out
@@ -126,10 +126,10 @@ STAGE PLANS:
                   Statistics: Num rows: 12 Data size: 25632 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: s_store_id (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: s_store_id
                     Statistics: Num rows: 12 Data size: 25632 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: string), '0' (type: string)
+                      keys: s_store_id (type: string), '0' (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 24 Data size: 51264 Basic stats: COMPLETE Column stats: NONE
@@ -207,10 +207,10 @@ STAGE PLANS:
                   Statistics: Num rows: 12 Data size: 25632 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: s_store_id (type: string)
-                    outputColumnNames: _col0
+                    outputColumnNames: s_store_id
                     Statistics: Num rows: 12 Data size: 25632 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
-                      keys: _col0 (type: string), '0' (type: string)
+                      keys: s_store_id (type: string), '0' (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
                       Statistics: Num rows: 24 Data size: 51264 Basic stats: COMPLETE Column stats: NONE

http://git-wip-us.apache.org/repos/asf/hive/blob/1cce5f00/ql/src/test/results/clientpositive/tez/vector_mapjoin_reduce.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/vector_mapjoin_reduce.q.out b/ql/src/test/results/clientpositive/tez/vector_mapjoin_reduce.q.out
index e7fec82..d33b0ed 100644
--- a/ql/src/test/results/clientpositive/tez/vector_mapjoin_reduce.q.out
+++ b/ql/src/test/results/clientpositive/tez/vector_mapjoin_reduce.q.out
@@ -109,20 +109,16 @@ STAGE PLANS:
                   Filter Operator
                     predicate: l_partkey is not null (type: boolean)
                     Statistics: Num rows: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: l_partkey (type: int)
+                    Group By Operator
+                      keys: l_partkey (type: int)
+                      mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        keys: _col0 (type: int)
-                        mode: hash
-                        outputColumnNames: _col0
+                      Reduce Output Operator
+                        key expressions: _col0 (type: int)
+                        sort order: +
+                        Map-reduce partition columns: _col0 (type: int)
                         Statistics: Num rows: 50 Data size: 5999 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: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
         Reducer 4 
             Reduce Operator Tree:
               Group By Operator
@@ -252,20 +248,16 @@ STAGE PLANS:
                   Filter Operator
                     predicate: l_partkey is not null (type: boolean)
                     Statistics: Num rows: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: l_partkey (type: int)
+                    Group By Operator
+                      keys: l_partkey (type: int)
+                      mode: hash
                       outputColumnNames: _col0
                       Statistics: Num rows: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
-                      Group By Operator
-                        keys: _col0 (type: int)
-                        mode: hash
-                        outputColumnNames: _col0
+                      Reduce Output Operator
+                        key expressions: _col0 (type: int)
+                        sort order: +
+                        Map-reduce partition columns: _col0 (type: int)
                         Statistics: Num rows: 50 Data size: 5999 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: 50 Data size: 5999 Basic stats: COMPLETE Column stats: NONE
         Reducer 4 
             Reduce Operator Tree:
               Group By Operator


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