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From jpull...@apache.org
Subject [22/51] [partial] hive git commit: HIVE-11110: Reorder applyPreJoinOrderingTransforms, add NotNULL/FilterMerge rules, improve Filter selectivity estimation (Laljo John Pullokkaran reviewed by Jesus Camacho Rodriguez, Ashutosh Chauhan
Date Tue, 15 Dec 2015 00:39:30 GMT
http://git-wip-us.apache.org/repos/asf/hive/blob/d8ee05ae/ql/src/test/results/clientpositive/llap/tez_smb_main.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/llap/tez_smb_main.q.out b/ql/src/test/results/clientpositive/llap/tez_smb_main.q.out
index 1faf980..f15339b 100644
--- a/ql/src/test/results/clientpositive/llap/tez_smb_main.q.out
+++ b/ql/src/test/results/clientpositive/llap/tez_smb_main.q.out
@@ -22,16 +22,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col1 (type: string)
             Execution mode: llap
         Map 3 
@@ -41,16 +41,16 @@ STAGE PLANS:
                   Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col1 (type: string)
             Execution mode: llap
         Reducer 2 
@@ -63,10 +63,10 @@ STAGE PLANS:
                   0 _col0 (type: string)
                   1 _col0 (type: string)
                 outputColumnNames: _col0, _col1, _col2, _col3
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                  Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -262,16 +262,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 2 
             Map Operator Tree:
@@ -280,11 +280,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -293,7 +293,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           0 Map 1
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Group By Operator
                           aggregations: count()
@@ -371,16 +371,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 2 
             Map Operator Tree:
@@ -389,11 +389,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -402,7 +402,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           0 Map 1
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Group By Operator
                           aggregations: count()
@@ -480,16 +480,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 2 
             Map Operator Tree:
@@ -498,11 +498,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -511,7 +511,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           0 Map 1
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Group By Operator
                           aggregations: count()
@@ -574,52 +574,41 @@ STAGE PLANS:
   Stage: Stage-1
     Tez
       Edges:
-        Map 2 <- Map 1 (CUSTOM_EDGE), Map 4 (BROADCAST_EDGE)
+        Map 2 <- Map 4 (BROADCAST_EDGE)
         Reducer 3 <- Map 2 (SIMPLE_EDGE)
 #### A masked pattern was here ####
       Vertices:
-        Map 1 
+        Map 2 
             Map Operator Tree:
                 TableScan
                   alias: a
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: (key is not null and value is not null) (type: boolean)
-                    Statistics: Num rows: 61 Data size: 646 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 61 Data size: 646 Basic stats: COMPLETE Column stats: NONE
-                      Reduce Output Operator
-                        key expressions: _col0 (type: int)
-                        sort order: +
-                        Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 61 Data size: 646 Basic stats: COMPLETE Column stats: NONE
-                        value expressions: _col1 (type: string)
-            Execution mode: llap
-        Map 2 
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Map Operator Tree:
                 TableScan
                   alias: b
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      Map Join Operator
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
+                      Merge Join Operator
                         condition map:
                              Inner Join 0 to 1
                         keys:
                           0 _col0 (type: int)
                           1 _col0 (type: int)
                         outputColumnNames: _col1
-                        input vertices:
-                          0 Map 1
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                        HybridGraceHashJoin: true
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         Map Join Operator
                           condition map:
                                Inner Join 0 to 1
@@ -628,7 +617,7 @@ STAGE PLANS:
                             1 _col0 (type: string)
                           input vertices:
                             1 Map 4
-                          Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                          Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                           HybridGraceHashJoin: true
                           Group By Operator
                             aggregations: count()
@@ -647,16 +636,16 @@ STAGE PLANS:
                   Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 3 
             Execution mode: uber
@@ -720,16 +709,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col1
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col1 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col1 (type: string)
-                        Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 4 
             Map Operator Tree:
@@ -738,16 +727,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col1
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col1 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col1 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 2 
             Execution mode: llap
@@ -758,7 +747,7 @@ STAGE PLANS:
                 keys:
                   0 _col1 (type: string)
                   1 _col1 (type: string)
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                 Group By Operator
                   aggregations: count()
                   mode: hash
@@ -838,22 +827,22 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Map Operator Tree:
                 TableScan
                   alias: s1
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Merge Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -861,12 +850,12 @@ STAGE PLANS:
                           0 _col0 (type: int)
                           1 _col0 (type: int)
                         outputColumnNames: _col0
-                        Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 266 Data size: 2822 Basic stats: COMPLETE Column stats: NONE
                         Reduce Output Operator
                           key expressions: _col0 (type: int)
                           sort order: +
                           Map-reduce partition columns: _col0 (type: int)
-                          Statistics: Num rows: 254 Data size: 2694 Basic stats: COMPLETE Column stats: NONE
+                          Statistics: Num rows: 508 Data size: 5388 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 6 
             Map Operator Tree:
@@ -875,16 +864,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 254 Data size: 2694 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 508 Data size: 5388 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 7 
             Map Operator Tree:
@@ -893,16 +882,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 3 
             Execution mode: llap
@@ -913,7 +902,7 @@ STAGE PLANS:
                 keys:
                   0 _col0 (type: int)
                   1 _col0 (type: int)
-                Statistics: Num rows: 279 Data size: 2963 Basic stats: COMPLETE Column stats: NONE
+                Statistics: Num rows: 558 Data size: 5926 Basic stats: COMPLETE Column stats: NONE
                 Group By Operator
                   aggregations: count()
                   mode: hash
@@ -970,16 +959,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col1
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col1 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col1 (type: string)
-                        Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 2 
             Map Operator Tree:
@@ -988,11 +977,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col1
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1001,7 +990,7 @@ STAGE PLANS:
                           1 _col1 (type: string)
                         input vertices:
                           0 Map 1
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Group By Operator
                           aggregations: count()
@@ -1073,16 +1062,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: (key is not null and value is not null) (type: boolean)
-                    Statistics: Num rows: 61 Data size: 646 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 61 Data size: 646 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 61 Data size: 646 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                         value expressions: _col1 (type: string)
             Execution mode: llap
         Map 2 
@@ -1092,11 +1081,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1106,7 +1095,7 @@ STAGE PLANS:
                         outputColumnNames: _col1
                         input vertices:
                           0 Map 1
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -1116,7 +1105,7 @@ STAGE PLANS:
                             1 _col0 (type: string)
                           input vertices:
                             1 Map 4
-                          Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                          Statistics: Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
                           HybridGraceHashJoin: true
                           Group By Operator
                             aggregations: count()
@@ -1135,16 +1124,16 @@ STAGE PLANS:
                   Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 3 
             Execution mode: uber
@@ -1217,11 +1206,11 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1231,7 +1220,7 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 4
-                        Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 266 Data size: 2822 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -1241,7 +1230,7 @@ STAGE PLANS:
                             1 _col0 (type: int)
                           input vertices:
                             1 Map 6
-                          Statistics: Num rows: 279 Data size: 2963 Basic stats: COMPLETE Column stats: NONE
+                          Statistics: Num rows: 558 Data size: 5926 Basic stats: COMPLETE Column stats: NONE
                           HybridGraceHashJoin: true
                           Group By Operator
                             aggregations: count()
@@ -1260,16 +1249,16 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 5 
             Map Operator Tree:
@@ -1278,11 +1267,11 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1291,7 +1280,7 @@ STAGE PLANS:
                           1 _col0 (type: int)
                         input vertices:
                           1 Map 6
-                        Statistics: Num rows: 279 Data size: 2963 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 558 Data size: 5926 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Group By Operator
                           aggregations: count()
@@ -1310,21 +1299,21 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 3 
             Execution mode: uber
@@ -1388,15 +1377,15 @@ STAGE PLANS:
                   Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int), _col1 (type: string)
                         sort order: ++
-                        Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 3 
             Map Operator Tree:
@@ -1405,15 +1394,15 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: int), _col1 (type: string)
                         sort order: ++
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 2 
             Execution mode: llap
@@ -1421,19 +1410,19 @@ STAGE PLANS:
               Select Operator
                 expressions: KEY.reducesinkkey0 (type: int)
                 outputColumnNames: _col0
-                Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
                 Reduce Output Operator
                   key expressions: _col0 (type: int)
                   sort order: +
                   Map-reduce partition columns: _col0 (type: int)
-                  Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                  Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
         Reducer 4 
             Execution mode: llap
             Reduce Operator Tree:
               Select Operator
                 expressions: KEY.reducesinkkey0 (type: int)
                 outputColumnNames: _col0
-                Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                 Map Join Operator
                   condition map:
                        Inner Join 0 to 1
@@ -1442,7 +1431,7 @@ STAGE PLANS:
                     1 _col0 (type: int)
                   input vertices:
                     0 Reducer 2
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                  Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                   HybridGraceHashJoin: true
                   Group By Operator
                     aggregations: count()

http://git-wip-us.apache.org/repos/asf/hive/blob/d8ee05ae/ql/src/test/results/clientpositive/llap/tez_union.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/llap/tez_union.q.out b/ql/src/test/results/clientpositive/llap/tez_union.q.out
index b60779a..3bfa24c 100644
--- a/ql/src/test/results/clientpositive/llap/tez_union.q.out
+++ b/ql/src/test/results/clientpositive/llap/tez_union.q.out
@@ -27,11 +27,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -41,11 +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
+                        Statistics: Num rows: 550 Data size: 5843 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
+                          Statistics: Num rows: 1050 Data size: 11155 Basic stats: COMPLETE Column stats: NONE
                           table:
                               input format: org.apache.hadoop.mapred.TextInputFormat
                               output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -58,16 +58,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 4 
             Map Operator Tree:
@@ -80,7 +80,7 @@ STAGE PLANS:
                     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
+                      Statistics: Num rows: 1050 Data size: 11155 Basic stats: COMPLETE Column stats: NONE
                       table:
                           input format: org.apache.hadoop.mapred.TextInputFormat
                           output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -180,16 +180,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       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
+                        Statistics: Num rows: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 5 
             Map Operator Tree:
@@ -198,16 +198,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       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
+                        Statistics: Num rows: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 6 
             Map Operator Tree:
@@ -216,16 +216,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       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
+                        Statistics: Num rows: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 8 
             Map Operator Tree:
@@ -234,16 +234,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       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
+                        Statistics: Num rows: 1000 Data size: 10624 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 3 
             Execution mode: llap
@@ -254,7 +254,7 @@ STAGE PLANS:
                 keys:
                   0 _col0 (type: string)
                   1 _col0 (type: string)
-                Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                Statistics: Num rows: 1100 Data size: 11686 Basic stats: COMPLETE Column stats: NONE
                 Group By Operator
                   aggregations: count()
                   mode: hash
@@ -350,21 +350,21 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 2 
             Map Operator Tree:
@@ -373,11 +373,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -387,11 +387,11 @@ STAGE PLANS:
                         outputColumnNames: _col0, _col1
                         input vertices:
                           0 Map 1
-                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 1100 Data size: 11686 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         File Output Operator
                           compressed: false
-                          Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                          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
@@ -404,11 +404,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -418,11 +418,11 @@ STAGE PLANS:
                         outputColumnNames: _col0, _col1
                         input vertices:
                           0 Map 1
-                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 1100 Data size: 11686 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         File Output Operator
                           compressed: false
-                          Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                          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
@@ -526,11 +526,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -540,7 +540,7 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 4
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -554,16 +554,16 @@ STAGE PLANS:
                           input vertices:
                             1 Map 9
                             2 Map 10
-                          Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
+                          Statistics: Num rows: 3630 Data size: 38563 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
+                            Statistics: Num rows: 3630 Data size: 38563 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
+                              Statistics: Num rows: 3630 Data size: 38563 Basic stats: COMPLETE Column stats: NONE
                               value expressions: _col0 (type: string), _col1 (type: string)
             Execution mode: llap
         Map 10 
@@ -573,26 +573,26 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 4 
             Map Operator Tree:
@@ -601,16 +601,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 5 
             Map Operator Tree:
@@ -619,11 +619,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -633,7 +633,7 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 6
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -647,16 +647,16 @@ STAGE PLANS:
                           input vertices:
                             1 Map 9
                             2 Map 10
-                          Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
+                          Statistics: Num rows: 3630 Data size: 38563 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
+                            Statistics: Num rows: 3630 Data size: 38563 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
+                              Statistics: Num rows: 3630 Data size: 38563 Basic stats: COMPLETE Column stats: NONE
                               value expressions: _col0 (type: string), _col1 (type: string)
             Execution mode: llap
         Map 6 
@@ -666,16 +666,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 7 
             Map Operator Tree:
@@ -684,11 +684,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -698,7 +698,7 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 8
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         Map Join Operator
                           condition map:
@@ -712,16 +712,16 @@ STAGE PLANS:
                           input vertices:
                             1 Map 9
                             2 Map 10
-                          Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
+                          Statistics: Num rows: 3630 Data size: 38563 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
+                            Statistics: Num rows: 3630 Data size: 38563 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
+                              Statistics: Num rows: 3630 Data size: 38563 Basic stats: COMPLETE Column stats: NONE
                               value expressions: _col0 (type: string), _col1 (type: string)
             Execution mode: llap
         Map 8 
@@ -731,16 +731,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 9 
             Map Operator Tree:
@@ -749,26 +749,26 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Reducer 3 
             Execution mode: uber
@@ -776,10 +776,10 @@ STAGE PLANS:
               Select Operator
                 expressions: VALUE._col0 (type: string), VALUE._col1 (type: string), KEY.reducesinkkey0 (type: string)
                 outputColumnNames: _col0, _col1, _col2
-                Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
+                Statistics: Num rows: 3630 Data size: 38563 Basic stats: COMPLETE Column stats: NONE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1815 Data size: 19278 Basic stats: COMPLETE Column stats: NONE
+                  Statistics: Num rows: 3630 Data size: 38563 Basic stats: COMPLETE Column stats: NONE
                   table:
                       input format: org.apache.hadoop.mapred.TextInputFormat
                       output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
@@ -960,11 +960,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -974,11 +974,11 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 3
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         File Output Operator
                           compressed: false
-                          Statistics: Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
+                          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
@@ -991,16 +991,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Map 4 
             Map Operator Tree:
@@ -1009,11 +1009,11 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Map Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1023,11 +1023,11 @@ STAGE PLANS:
                         outputColumnNames: _col0
                         input vertices:
                           1 Map 5
-                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
                         HybridGraceHashJoin: true
                         File Output Operator
                           compressed: false
-                          Statistics: Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
+                          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
@@ -1040,16 +1040,16 @@ STAGE PLANS:
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                     Select Operator
                       expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
             Execution mode: llap
         Union 2 
             Vertex: Union 2


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