http://git-wip-us.apache.org/repos/asf/hive/blob/8f7c5788/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_9.q.out
----------------------------------------------------------------------
diff --git 
a/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_9.q.out 
b/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_9.q.out
index 278c55b..8bd3d12 100644
--- a/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_9.q.out
+++ b/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_9.q.out
@@ -65,14 +65,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -81,7 +81,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -97,19 +97,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -180,14 +180,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -197,18 +197,18 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           keys: _col0 (type: int)
                           mode: hash
                           outputColumnNames: _col0, _col1
-                          Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 11 Data size: 44 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: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
                             value expressions: _col1 (type: bigint)
             Execution mode: llap
             LLAP IO: no inputs
@@ -216,19 +216,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -239,10 +239,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -316,14 +316,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -333,36 +333,36 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 4
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           keys: _col0 (type: int)
                           mode: hash
                           outputColumnNames: _col0
-                          Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 11 Data size: 44 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: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Map 4 
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -372,9 +372,9 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                 Select Operator
-                  Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                   Group By Operator
                     aggregations: count()
                     mode: hash
@@ -483,14 +483,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -500,24 +500,24 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 4
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           keys: _col0 (type: int)
                           mode: hash
                           outputColumnNames: _col0, _col1
-                          Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 11 Data size: 44 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: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
                             value expressions: _col1 (type: bigint)
                           Reduce Output Operator
                             key expressions: _col0 (type: int)
                             sort order: +
                             Map-reduce partition columns: _col0 (type: int)
-                            Statistics: Num rows: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
                             value expressions: _col1 (type: bigint)
             Execution mode: llap
             LLAP IO: no inputs
@@ -525,19 +525,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -548,7 +548,7 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                 Map Join Operator
                   condition map:
                        Inner Join 0 to 1
@@ -558,14 +558,14 @@ STAGE PLANS:
                   outputColumnNames: _col0, _col1, _col3
                   input vertices:
                     1 Reducer 3
-                  Statistics: Num rows: 5 Data size: 38 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 22 Basic stats: COMPLETE 
Column stats: NONE
                   Select Operator
-                    expressions: _col0 (type: int), _col1 (type: bigint), 
_col3 (type: bigint)
+                    expressions: _col0 (type: int), _col3 (type: bigint), 
_col1 (type: bigint)
                     outputColumnNames: _col0, _col1, _col2
-                    Statistics: Num rows: 5 Data size: 38 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 5 Data size: 22 Basic stats: 
COMPLETE Column stats: NONE
                     File Output Operator
                       compressed: false
-                      Statistics: Num rows: 5 Data size: 38 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 5 Data size: 22 Basic stats: 
COMPLETE Column stats: NONE
                       table:
                           input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                           output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -578,12 +578,12 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 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: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                   value expressions: _col1 (type: bigint)
 
   Stage: Stage-0
@@ -667,14 +667,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -683,7 +683,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -699,19 +699,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -796,14 +796,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -812,7 +812,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -828,19 +828,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -949,14 +949,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -965,7 +965,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -981,19 +981,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1090,14 +1090,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 8) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1106,7 +1106,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -1122,19 +1122,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 8) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1209,14 +1209,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: (key + 1) (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1225,7 +1225,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -1241,19 +1241,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: (key + 1) (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1324,14 +1324,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1340,7 +1340,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -1356,19 +1356,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1437,14 +1437,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1453,7 +1453,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -1469,19 +1469,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1560,14 +1560,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1579,7 +1579,7 @@ STAGE PLANS:
                         input vertices:
                           1 Map 3
                           2 Map 4
-                        Statistics: Num rows: 6 Data size: 46 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 22 Data size: 88 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -1595,38 +1595,38 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Map 4 
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1719,14 +1719,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1735,7 +1735,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -1751,19 +1751,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1846,14 +1846,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1862,7 +1862,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -1878,19 +1878,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1961,14 +1961,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1978,18 +1978,18 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           keys: _col0 (type: int)
                           mode: hash
                           outputColumnNames: _col0, _col1
-                          Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 11 Data size: 44 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: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
                             value expressions: _col1 (type: bigint)
             Execution mode: llap
             LLAP IO: no inputs
@@ -1997,19 +1997,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -2020,10 +2020,10 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -2097,14 +2097,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -2114,36 +2114,36 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 4
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           keys: _col0 (type: int)
                           mode: hash
                           outputColumnNames: _col0
-                          Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 11 Data size: 44 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: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Map 4 
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -2153,9 +2153,9 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                 Select Operator
-                  Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                   Group By Operator
                     aggregations: count()
                     mode: hash
@@ -2264,14 +2264,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -2281,24 +2281,24 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 4
-                        Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           keys: _col0 (type: int)
                           mode: hash
                           outputColumnNames: _col0, _col1
-                          Statistics: Num rows: 11 Data size: 77 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 11 Data size: 44 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: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
                             value expressions: _col1 (type: bigint)
                           Reduce Output Operator
                             key expressions: _col0 (type: int)
                             sort order: +
                             Map-reduce partition columns: _col0 (type: int)
-                            Statistics: Num rows: 11 Data size: 77 Basic 
stats: COMPLETE Column stats: NONE
+                            Statistics: Num rows: 11 Data size: 44 Basic 
stats: COMPLETE Column stats: NONE
                             value expressions: _col1 (type: bigint)
             Execution mode: llap
             LLAP IO: no inputs
@@ -2306,19 +2306,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 10 Data size: 70 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -2329,7 +2329,7 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                 Map Join Operator
                   condition map:
                        Inner Join 0 to 1
@@ -2339,14 +2339,14 @@ STAGE PLANS:
                   outputColumnNames: _col0, _col1, _col3
                   input vertices:
                     1 Reducer 3
-                  Statistics: Num rows: 5 Data size: 38 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 22 Basic stats: COMPLETE 
Column stats: NONE
                   Select Operator
-                    expressions: _col0 (type: int), _col1 (type: bigint), 
_col3 (type: bigint)
+                    expressions: _col0 (type: int), _col3 (type: bigint), 
_col1 (type: bigint)
                     outputColumnNames: _col0, _col1, _col2
-                    Statistics: Num rows: 5 Data size: 38 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 5 Data size: 22 Basic stats: 
COMPLETE Column stats: NONE
                     File Output Operator
                       compressed: false
-                      Statistics: Num rows: 5 Data size: 38 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 5 Data size: 22 Basic stats: 
COMPLETE Column stats: NONE
                       table:
                           input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                           output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -2359,12 +2359,12 @@ STAGE PLANS:
                 keys: KEY._col0 (type: int)
                 mode: mergepartial
                 outputColumnNames: _col0, _col1
-                Statistics: Num rows: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 5 Data size: 20 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: 5 Data size: 35 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 5 Data size: 20 Basic stats: COMPLETE 
Column stats: NONE
                   value expressions: _col1 (type: bigint)
 
   Stage: Stage-0
@@ -2448,14 +2448,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -2464,7 +2464,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -2480,19 +2480,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -2577,14 +2577,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -2593,7 +2593,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -2609,19 +2609,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -2730,14 +2730,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -2746,7 +2746,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -2762,19 +2762,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -2871,14 +2871,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 8) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -2887,7 +2887,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -2903,19 +2903,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 8) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -2986,14 +2986,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -3002,7 +3002,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -3018,19 +3018,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -3099,14 +3099,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -3115,7 +3115,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 3 Data size: 23 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 11 Data size: 44 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -3131,19 +3131,19 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 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: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -3222,14 +3222,14 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -3241,7 +3241,7 @@ STAGE PLANS:
                         input vertices:
                           1 Map 3
                           2 Map 4
-                        Statistics: Num rows: 6 Data size: 46 Basic stats: 
COMPLETE Column stats: NONE
+                        Statistics: Num rows: 22 Data size: 88 Basic stats: 
COMPLETE Column stats: NONE
                         Group By Operator
                           aggregations: count()
                           mode: hash
@@ -3257,38 +3257,38 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 10 Data size: 70 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 10 Data size: 40 Basic stats: COMPLETE 
Column stats: NONE
                   Filter Operator
                     predicate: (key < 6) (type: boolean)
-                    Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 3 Data size: 21 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 10 Data size: 40 Basic stats: 
COMPLETE Column stats: NONE
                       Reduce

<TRUNCATED>

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