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From hashut...@apache.org
Subject [10/48] hive git commit: HIVE-8769 : Physical optimizer : Incorrect CE results in a shuffle join instead of a Map join (PK/FK pattern not detected) (Pengcheng Xiong via Ashutosh Chauhan)
Date Sat, 23 May 2015 18:48:43 GMT
http://git-wip-us.apache.org/repos/asf/hive/blob/d823fc80/ql/src/test/results/clientpositive/tez/tez_union.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/tez_union.q.out b/ql/src/test/results/clientpositive/tez/tez_union.q.out
index 4c9368e..4012b90 100644
--- a/ql/src/test/results/clientpositive/tez/tez_union.q.out
+++ b/ql/src/test/results/clientpositive/tez/tez_union.q.out
@@ -24,11 +24,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  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
                     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
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -38,9 +41,11 @@ STAGE PLANS:
                         outputColumnNames: _col0, _col1
                         input vertices:
                           1 Map 3
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         File Output Operator
                           compressed: false
+                          Statistics: Num rows: 775 Data size: 8233 Basic stats: COMPLETE Column stats: NONE
                           table:
                               input format: org.apache.hadoop.mapred.TextInputFormat
                               output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -66,11 +71,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     File Output Operator
                       compressed: false
+                      Statistics: Num rows: 775 Data size: 8233 Basic stats: COMPLETE Column stats: NONE
                       table:
                           input format: org.apache.hadoop.mapred.TextInputFormat
                           output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -166,54 +174,70 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
         Map 5 
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
         Map 6 
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
         Map 8 
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
         Reducer 3 
             Reduce Operator Tree:
               Merge Join Operator
@@ -314,11 +338,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -328,12 +355,15 @@ STAGE PLANS:
                         outputColumnNames: _col0, _col1
                         input vertices:
                           1 Map 4
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Select Operator
                           expressions: _col1 (type: string), _col0 (type: string)
                           outputColumnNames: _col0, _col1
+                          Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                           File Output Operator
                             compressed: false
+                            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
@@ -342,11 +372,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -356,12 +389,15 @@ STAGE PLANS:
                         outputColumnNames: _col0, _col1
                         input vertices:
                           1 Map 4
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Select Operator
                           expressions: _col1 (type: string), _col0 (type: string)
                           outputColumnNames: _col0, _col1
+                          Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                           File Output Operator
                             compressed: false
+                            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
@@ -483,11 +519,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -497,6 +536,7 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 4
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -510,13 +550,16 @@ STAGE PLANS:
                           input vertices:
                             1 Map 9
                             2 Map 10
+                          Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                           HybridGraceHashJoin: true
                           Select Operator
                             expressions: _col1 (type: string), _col0 (type: string), _col2 (type: string)
                             outputColumnNames: _col0, _col1, _col2
+                            Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                             Reduce Output Operator
                               key expressions: _col2 (type: string)
                               sort order: +
+                              Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                               value expressions: _col0 (type: string), _col1 (type: string)
         Map 10 
             Map Operator Tree:
@@ -566,11 +609,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -580,6 +626,7 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 6
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -593,13 +640,16 @@ STAGE PLANS:
                           input vertices:
                             1 Map 9
                             2 Map 10
+                          Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                           HybridGraceHashJoin: true
                           Select Operator
                             expressions: _col1 (type: string), _col0 (type: string), _col2 (type: string)
                             outputColumnNames: _col0, _col1, _col2
+                            Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                             Reduce Output Operator
                               key expressions: _col2 (type: string)
                               sort order: +
+                              Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                               value expressions: _col0 (type: string), _col1 (type: string)
         Map 6 
             Map Operator Tree:
@@ -622,11 +672,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -636,6 +689,7 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 8
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -649,13 +703,16 @@ STAGE PLANS:
                           input vertices:
                             1 Map 9
                             2 Map 10
+                          Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                           HybridGraceHashJoin: true
                           Select Operator
                             expressions: _col1 (type: string), _col0 (type: string), _col2 (type: string)
                             outputColumnNames: _col0, _col1, _col2
+                            Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                             Reduce Output Operator
                               key expressions: _col2 (type: string)
                               sort order: +
+                              Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
                               value expressions: _col0 (type: string), _col1 (type: string)
         Map 8 
             Map Operator Tree:
@@ -887,11 +944,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s2
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -901,9 +961,11 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 3
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         File Output Operator
                           compressed: false
+                          Statistics: Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
                           table:
                               input format: org.apache.hadoop.mapred.TextInputFormat
                               output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -929,11 +991,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s2
+                  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
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -943,9 +1008,11 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 5
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         File Output Operator
                           compressed: false
+                          Statistics: Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
                           table:
                               input format: org.apache.hadoop.mapred.TextInputFormat
                               output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -1062,9 +1129,11 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Map Join Operator
                       condition map:
                            Left Outer Join0 to 1
@@ -1074,9 +1143,11 @@ STAGE PLANS:
                       outputColumnNames: _col0, _col1, _col2, _col3
                       input vertices:
                         1 Map 4
+                      Statistics: Num rows: 1100 Data size: 11686 Basic stats: COMPLETE Column stats: NONE
                       HybridGraceHashJoin: true
                       File Output Operator
                         compressed: false
+                        Statistics: Num rows: 1100 Data size: 11686 Basic stats: COMPLETE Column stats: NONE
                         table:
                             input format: org.apache.hadoop.mapred.TextInputFormat
                             output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -1085,9 +1156,11 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Map Join Operator
                       condition map:
                            Left Outer Join0 to 1
@@ -1097,9 +1170,11 @@ STAGE PLANS:
                       outputColumnNames: _col0, _col1, _col2, _col3
                       input vertices:
                         1 Map 4
+                      Statistics: Num rows: 1100 Data size: 11686 Basic stats: COMPLETE Column stats: NONE
                       HybridGraceHashJoin: true
                       File Output Operator
                         compressed: false
+                        Statistics: Num rows: 1100 Data size: 11686 Basic stats: COMPLETE Column stats: NONE
                         table:
                             input format: org.apache.hadoop.mapred.TextInputFormat
                             output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -1161,24 +1236,30 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: src
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: key (type: string)
                     outputColumnNames: _col0
+                    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: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
         Map 3 
             Map Operator Tree:
                 TableScan
                   alias: src
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Select Operator
                     expressions: key (type: string)
                     outputColumnNames: _col0
+                    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: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
         Map 4 
             Map Operator Tree:
                 TableScan

http://git-wip-us.apache.org/repos/asf/hive/blob/d823fc80/ql/src/test/results/clientpositive/tez/tez_union2.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/tez_union2.q.out b/ql/src/test/results/clientpositive/tez/tez_union2.q.out
index 4e4ed9f..4c7f5f9 100644
--- a/ql/src/test/results/clientpositive/tez/tez_union2.q.out
+++ b/ql/src/test/results/clientpositive/tez/tez_union2.q.out
@@ -51,47 +51,59 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       keys: _col0 (type: string), _col1 (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 750 Data size: 7968 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: 750 Data size: 7968 Basic stats: COMPLETE Column stats: NONE
         Map 4 
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       keys: _col0 (type: string), _col1 (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 1000 Data size: 10624 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)
+                        Statistics: Num rows: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
         Map 7 
             Map Operator Tree:
                 TableScan
                   alias: src
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       keys: _col0 (type: string), _col1 (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 1000 Data size: 10624 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)
+                        Statistics: Num rows: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
         Reducer 3 
             Reduce Operator Tree:
               Group By Operator
@@ -112,24 +124,30 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
+                Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                 Select Operator
                   expressions: _col0 (type: string)
                   outputColumnNames: _col0
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Group By Operator
                     keys: _col0 (type: string)
                     mode: complete
                     outputColumnNames: _col0
+                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: _col0 (type: string), _col0 (type: string)
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
                       Group By Operator
                         keys: _col0 (type: string), _col1 (type: string)
                         mode: hash
                         outputColumnNames: _col0, _col1
+                        Statistics: Num rows: 750 Data size: 7968 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: 750 Data size: 7968 Basic stats: COMPLETE Column stats: NONE
         Union 2 
             Vertex: Union 2
         Union 5 

http://git-wip-us.apache.org/repos/asf/hive/blob/d823fc80/ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out b/ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out
index 654b34b..6f18c96 100644
--- a/ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out
+++ b/ql/src/test/results/clientpositive/tez/tez_union_group_by.q.out
@@ -159,85 +159,100 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: x
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Filter Operator
                     predicate: ((date < '2014-09-02') and (u <> 0)) (type: boolean)
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Select Operator
                       expressions: u (type: bigint), date (type: string)
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                       Group By Operator
                         aggregations: min(_col1)
                         keys: _col0 (type: bigint)
                         mode: hash
                         outputColumnNames: _col0, _col1
+                        Statistics: Num rows: 3 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                         Reduce Output Operator
                           key expressions: _col0 (type: bigint)
                           sort order: +
                           Map-reduce partition columns: _col0 (type: bigint)
+                          Statistics: Num rows: 3 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                           value expressions: _col1 (type: string)
         Map 10 
             Map Operator Tree:
                 TableScan
                   alias: v
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Filter Operator
                     predicate: t is not null (type: boolean)
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Reduce Output Operator
                       key expressions: t (type: string), st (type: string)
                       sort order: ++
                       Map-reduce partition columns: t (type: string), st (type: string)
-                      Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                      Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
         Map 5 
             Map Operator Tree:
                 TableScan
                   alias: y
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Filter Operator
                     predicate: ((date < '2014-09-02') and (u <> 0)) (type: boolean)
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Select Operator
                       expressions: u (type: bigint), date (type: string)
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                       Group By Operator
                         aggregations: min(_col1)
                         keys: _col0 (type: bigint)
                         mode: hash
                         outputColumnNames: _col0, _col1
+                        Statistics: Num rows: 3 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                         Reduce Output Operator
                           key expressions: _col0 (type: bigint)
                           sort order: +
                           Map-reduce partition columns: _col0 (type: bigint)
+                          Statistics: Num rows: 3 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                           value expressions: _col1 (type: string)
         Map 6 
             Map Operator Tree:
                 TableScan
                   alias: z
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Filter Operator
                     predicate: ((date < '2014-09-02') and (u <> 0)) (type: boolean)
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Select Operator
                       expressions: u (type: bigint), date (type: string)
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                       Group By Operator
                         aggregations: min(_col1)
                         keys: _col0 (type: bigint)
                         mode: hash
                         outputColumnNames: _col0, _col1
+                        Statistics: Num rows: 3 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                         Reduce Output Operator
                           key expressions: _col0 (type: bigint)
                           sort order: +
                           Map-reduce partition columns: _col0 (type: bigint)
+                          Statistics: Num rows: 3 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                           value expressions: _col1 (type: string)
         Map 7 
             Map Operator Tree:
                 TableScan
                   alias: x
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Filter Operator
                     predicate: (((t is not null and (date >= '2014-03-04')) and (date < '2014-09-03')) and (u <> 0)) (type: boolean)
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Reduce Output Operator
                       key expressions: t (type: string), st (type: string)
                       sort order: ++
                       Map-reduce partition columns: t (type: string), st (type: string)
-                      Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                      Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                       value expressions: u (type: bigint)
         Reducer 3 
             Reduce Operator Tree:
@@ -246,19 +261,19 @@ STAGE PLANS:
                 keys: KEY._col0 (type: bigint)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                 Filter Operator
                   predicate: (_col1 <= '2014-09-02') (type: boolean)
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Select Operator
                     expressions: _col0 (type: bigint)
                     outputColumnNames: _col0
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Reduce Output Operator
                       key expressions: _col0 (type: bigint)
                       sort order: +
                       Map-reduce partition columns: _col0 (type: bigint)
-                      Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                      Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
         Reducer 4 
             Reduce Operator Tree:
               Merge Join Operator
@@ -268,14 +283,14 @@ STAGE PLANS:
                   0 _col0 (type: bigint)
                   1 _col0 (type: bigint)
                 outputColumnNames: _col0, _col2
-                Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                 Select Operator
                   expressions: _col2 (type: bigint), _col0 (type: bigint)
                   outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   File Output Operator
                     compressed: false
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     table:
                         input format: org.apache.hadoop.mapred.TextInputFormat
                         output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -290,29 +305,29 @@ STAGE PLANS:
                   1 t (type: string), st (type: string)
                 nullSafes: [false, true]
                 outputColumnNames: _col0
-                Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                 Group By Operator
                   keys: _col0 (type: bigint)
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Reduce Output Operator
                     key expressions: _col0 (type: bigint)
                     sort order: +
                     Map-reduce partition columns: _col0 (type: bigint)
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
         Reducer 9 
             Reduce Operator Tree:
               Group By Operator
                 keys: KEY._col0 (type: bigint)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                 Reduce Output Operator
                   key expressions: _col0 (type: bigint)
                   sort order: +
                   Map-reduce partition columns: _col0 (type: bigint)
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
         Union 2 
             Vertex: Union 2
 

http://git-wip-us.apache.org/repos/asf/hive/blob/d823fc80/ql/src/test/results/clientpositive/tez/tez_union_multiinsert.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/tez_union_multiinsert.q.out b/ql/src/test/results/clientpositive/tez/tez_union_multiinsert.q.out
index e67bf3e..132f859 100644
--- a/ql/src/test/results/clientpositive/tez/tez_union_multiinsert.q.out
+++ b/ql/src/test/results/clientpositive/tez/tez_union_multiinsert.q.out
@@ -83,85 +83,105 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s2
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: _col0 (type: string), _col1 (type: string)
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 501 Data size: 136272 Basic stats: COMPLETE Column stats: PARTIAL
                       Group By Operator
                         aggregations: count(DISTINCT substr(_col1, 5))
                         keys: _col0 (type: string), substr(_col1, 5) (type: string)
                         mode: hash
                         outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                         Reduce Output Operator
                           key expressions: _col0 (type: string), _col1 (type: string)
                           sort order: ++
                           Map-reduce partition columns: _col0 (type: string)
+                          Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Group By Operator
                         aggregations: count(DISTINCT substr(_col1, 5))
                         keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                         mode: hash
                         outputColumnNames: _col0, _col1, _col2, _col3
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                         Reduce Output Operator
                           key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                           sort order: +++
                           Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                          Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Map 7 
             Map Operator Tree:
                 TableScan
                   alias: s0
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string)
                         sort order: ++
                         Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
+                      Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                 Select Operator
                   expressions: 'tst1' (type: string), UDFToString(_col0) (type: string)
                   outputColumnNames: _col0, _col1
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: COMPLETE
                   Select Operator
                     expressions: _col0 (type: string), _col1 (type: string)
                     outputColumnNames: _col0, _col1
+                    Statistics: Num rows: 501 Data size: 136272 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string)
                         sort order: ++
                         Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
+                      Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 4 
             Reduce Operator Tree:
               Group By Operator
@@ -169,10 +189,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -185,10 +205,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1, _col2
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -944,27 +964,33 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s0
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string)
                         sort order: ++
                         Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
+                      Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Map 5 
             Map Operator Tree:
                 TableScan
@@ -985,30 +1011,37 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s2
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: _col0 (type: string), _col1 (type: string)
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 501 Data size: 136272 Basic stats: COMPLETE Column stats: PARTIAL
                       Group By Operator
                         aggregations: count(DISTINCT substr(_col1, 5))
                         keys: _col0 (type: string), substr(_col1, 5) (type: string)
                         mode: hash
                         outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                         Reduce Output Operator
                           key expressions: _col0 (type: string), _col1 (type: string)
                           sort order: ++
                           Map-reduce partition columns: _col0 (type: string)
+                          Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Group By Operator
                         aggregations: count(DISTINCT substr(_col1, 5))
                         keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                         mode: hash
                         outputColumnNames: _col0, _col1, _col2, _col3
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                         Reduce Output Operator
                           key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                           sort order: +++
                           Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                          Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 3 
             Reduce Operator Tree:
               Group By Operator
@@ -1016,10 +1049,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -1032,10 +1065,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1, _col2
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -1047,30 +1080,37 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                 Select Operator
                   expressions: 'tst1' (type: string), UDFToString(_col0) (type: string)
                   outputColumnNames: _col0, _col1
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: COMPLETE
                   Select Operator
                     expressions: _col0 (type: string), _col1 (type: string)
                     outputColumnNames: _col0, _col1
+                    Statistics: Num rows: 501 Data size: 136272 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string)
                         sort order: ++
                         Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
+                      Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Union 2 
             Vertex: Union 2
 
@@ -1817,27 +1857,33 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s0
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string)
                         sort order: ++
                         Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
+                      Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Map 5 
             Map Operator Tree:
                 TableScan
@@ -1858,27 +1904,33 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s2
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string)
                         sort order: ++
                         Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
+                      Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 3 
             Reduce Operator Tree:
               Group By Operator
@@ -1886,10 +1938,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -1902,10 +1954,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1, _col2
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -1917,27 +1969,33 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                 Select Operator
                   expressions: 'tst1' (type: string), UDFToString(_col0) (type: string)
                   outputColumnNames: _col0, _col1
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: COMPLETE
                   Group By Operator
                     aggregations: count(DISTINCT substr(_col1, 5))
                     keys: _col0 (type: string), substr(_col1, 5) (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1, _col2
+                    Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                     Reduce Output Operator
                       key expressions: _col0 (type: string), _col1 (type: string)
                       sort order: ++
                       Map-reduce partition columns: _col0 (type: string)
+                      Statistics: Num rows: 500 Data size: 140000 Basic stats: COMPLETE Column stats: PARTIAL
                   Group By Operator
                     aggregations: count(DISTINCT substr(_col1, 5))
                     keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1, _col2, _col3
+                    Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
                     Reduce Output Operator
                       key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                       sort order: +++
                       Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                      Statistics: Num rows: 500 Data size: 232000 Basic stats: COMPLETE Column stats: PARTIAL
         Union 2 
             Vertex: Union 2
 
@@ -2691,54 +2749,66 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s2
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 250 Data size: 70000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string)
                         sort order: ++
                         Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 250 Data size: 70000 Basic stats: COMPLETE Column stats: PARTIAL
                     Group By Operator
                       aggregations: count(DISTINCT substr(_col1, 5))
                       keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1, _col2, _col3
+                      Statistics: Num rows: 250 Data size: 116000 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 250 Data size: 116000 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                 Select Operator
                   expressions: 'tst1' (type: string), UDFToString(_col0) (type: string)
                   outputColumnNames: _col0, _col1
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: COMPLETE
                   Group By Operator
                     aggregations: count(DISTINCT substr(_col1, 5))
                     keys: _col0 (type: string), substr(_col1, 5) (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1, _col2
+                    Statistics: Num rows: 250 Data size: 70000 Basic stats: COMPLETE Column stats: PARTIAL
                     Reduce Output Operator
                       key expressions: _col0 (type: string), _col1 (type: string)
                       sort order: ++
                       Map-reduce partition columns: _col0 (type: string)
+                      Statistics: Num rows: 250 Data size: 70000 Basic stats: COMPLETE Column stats: PARTIAL
                   Group By Operator
                     aggregations: count(DISTINCT substr(_col1, 5))
                     keys: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1, _col2, _col3
+                    Statistics: Num rows: 250 Data size: 116000 Basic stats: COMPLETE Column stats: PARTIAL
                     Reduce Output Operator
                       key expressions: _col0 (type: string), _col1 (type: string), _col2 (type: string)
                       sort order: +++
                       Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                      Statistics: Num rows: 250 Data size: 116000 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 4 
             Reduce Operator Tree:
               Group By Operator
@@ -2746,10 +2816,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -2762,10 +2832,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1, _col2
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -3518,65 +3588,73 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s2
+                  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: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Group By Operator
                       keys: _col0 (type: string), _col1 (type: string)
                       mode: hash
                       outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: PARTIAL
                       Reduce Output Operator
                         key expressions: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                         sort order: +++
                         Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                        Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 2 
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                 Select Operator
                   expressions: 'tst1' (type: string), UDFToString(_col0) (type: string)
                   outputColumnNames: _col0, _col1
+                  Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: COMPLETE
                   Group By Operator
                     keys: _col0 (type: string), _col1 (type: string)
                     mode: hash
                     outputColumnNames: _col0, _col1
+                    Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: PARTIAL
                     Reduce Output Operator
                       key expressions: _col0 (type: string), _col1 (type: string), substr(_col1, 5) (type: string)
                       sort order: +++
                       Map-reduce partition columns: _col0 (type: string), _col1 (type: string)
+                      Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: PARTIAL
         Reducer 4 
             Reduce Operator Tree:
               Group By Operator
                 keys: KEY._col0 (type: string), KEY._col1 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 272 Basic stats: COMPLETE Column stats: PARTIAL
                 Group By Operator
                   aggregations: count(DISTINCT substr(_col1, 5))
                   keys: _col0 (type: string), substr(_col1, 5) (type: string)
                   mode: hash
                   outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                   Reduce Output Operator
                     key expressions: _col0 (type: string), _col1 (type: string)
                     sort order: ++
                     Map-reduce partition columns: _col0 (type: string)
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 280 Basic stats: COMPLETE Column stats: PARTIAL
                 Group By Operator
                   aggregations: count(DISTINCT substr(_col1, 5))
                   keys: _col0 (type: string), _col1 (type: string)
                   mode: complete
                   outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 464 Basic stats: COMPLETE Column stats: PARTIAL
                   Select Operator
                     expressions: _col0 (type: string), _col1 (type: string), _col2 (type: bigint)
                     outputColumnNames: _col0, _col1, _col2
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                    Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE Column stats: PARTIAL
                     File Output Operator
                       compressed: false
-                      Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                      Statistics: Num rows: 1 Data size: 456 Basic stats: COMPLETE Column stats: PARTIAL
                       table:
                           input format: org.apache.hadoop.mapred.TextInputFormat
                           output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -3589,10 +3667,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: string)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: PARTIAL
+                  Statistics: Num rows: 1 Data size: 96 Basic stats: COMPLETE Column stats: PARTIAL
                   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/d823fc80/ql/src/test/results/clientpositive/tez/transform1.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/transform1.q.out b/ql/src/test/results/clientpositive/tez/transform1.q.out
index 718f128..49d2a5c 100644
--- a/ql/src/test/results/clientpositive/tez/transform1.q.out
+++ b/ql/src/test/results/clientpositive/tez/transform1.q.out
@@ -25,21 +25,21 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: transform1_t1
-                  Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                   Select Operator
                     expressions: a (type: string), b (type: string)
                     outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                     Transform Operator
                       command: cat
                       output info:
                           input format: org.apache.hadoop.mapred.TextInputFormat
                           output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
                           serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-                      Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                      Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                       File Output Operator
                         compressed: false
-                        Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE
+                        Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL 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/d823fc80/ql/src/test/results/clientpositive/tez/union2.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/union2.q.out b/ql/src/test/results/clientpositive/tez/union2.q.out
index f3c5723..c127089 100644
--- a/ql/src/test/results/clientpositive/tez/union2.q.out
+++ b/ql/src/test/results/clientpositive/tez/union2.q.out
@@ -29,27 +29,37 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
                   Select Operator
+                    Statistics: Num rows: 500 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                     Select Operator
+                      Statistics: Num rows: 1000 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                       Group By Operator
                         aggregations: count(1)
                         mode: hash
                         outputColumnNames: _col0
+                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                         Reduce Output Operator
                           sort order: 
+                          Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                           value expressions: _col0 (type: bigint)
         Map 4 
             Map Operator Tree:
                 TableScan
                   alias: s1
+                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
                   Select Operator
+                    Statistics: Num rows: 500 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                     Select Operator
+                      Statistics: Num rows: 1000 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                       Group By Operator
                         aggregations: count(1)
                         mode: hash
                         outputColumnNames: _col0
+                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                         Reduce Output Operator
                           sort order: 
+                          Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: COMPLETE
                           value expressions: _col0 (type: bigint)
         Reducer 3 
             Reduce Operator Tree:

http://git-wip-us.apache.org/repos/asf/hive/blob/d823fc80/ql/src/test/results/clientpositive/tez/union3.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/tez/union3.q.out b/ql/src/test/results/clientpositive/tez/union3.q.out
index 79e29a5..1a9feed 100644
--- a/ql/src/test/results/clientpositive/tez/union3.q.out
+++ b/ql/src/test/results/clientpositive/tez/union3.q.out
@@ -107,24 +107,30 @@ STAGE PLANS:
             Reduce Operator Tree:
               Limit
                 Number of rows: 1
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                 Select Operator
                   expressions: 4 (type: int)
                   outputColumnNames: _col0
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                   Reduce Output Operator
                     key expressions: _col0 (type: int)
                     sort order: +
                     Map-reduce partition columns: _col0 (type: int)
+                    Statistics: Num rows: 4 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
         Reducer 2 
             Reduce Operator Tree:
               Limit
                 Number of rows: 1
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                 Select Operator
                   expressions: 1 (type: int)
                   outputColumnNames: _col0
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                   Reduce Output Operator
                     key expressions: _col0 (type: int)
                     sort order: +
                     Map-reduce partition columns: _col0 (type: int)
+                    Statistics: Num rows: 4 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
         Reducer 4 
             Reduce Operator Tree:
               Select Operator
@@ -142,24 +148,30 @@ STAGE PLANS:
             Reduce Operator Tree:
               Limit
                 Number of rows: 1
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                 Select Operator
                   expressions: 2 (type: int)
                   outputColumnNames: _col0
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                   Reduce Output Operator
                     key expressions: _col0 (type: int)
                     sort order: +
                     Map-reduce partition columns: _col0 (type: int)
+                    Statistics: Num rows: 4 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
         Reducer 8 
             Reduce Operator Tree:
               Limit
                 Number of rows: 1
+                Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                 Select Operator
                   expressions: 3 (type: int)
                   outputColumnNames: _col0
+                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
                   Reduce Output Operator
                     key expressions: _col0 (type: int)
                     sort order: +
                     Map-reduce partition columns: _col0 (type: int)
+                    Statistics: Num rows: 4 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
         Union 3 
             Vertex: Union 3
 


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