http://git-wip-us.apache.org/repos/asf/hive/blob/3bbc24d2/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_6.q.out
----------------------------------------------------------------------
diff --git 
a/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_6.q.out 
b/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_6.q.out
index 60c35fa..569b308 100644
--- a/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_6.q.out
+++ b/ql/src/test/results/clientpositive/llap/auto_sortmerge_join_6.q.out
@@ -84,66 +84,63 @@ STAGE PLANS:
 #### A masked pattern was here ####
       Edges:
         Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 5 (SIMPLE_EDGE)
-        Reducer 3 <- Map 6 (SIMPLE_EDGE), Reducer 2 (SIMPLE_EDGE)
-        Reducer 4 <- Reducer 3 (CUSTOM_SIMPLE_EDGE)
+        Reducer 3 <- Reducer 2 (CUSTOM_SIMPLE_EDGE)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: c
-                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  alias: b
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    predicate: key is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: value (type: string)
+                      expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
-                      Reduce Output Operator
-                        key expressions: _col0 (type: string)
-                        sort order: +
-                        Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
-            Execution mode: llap
-            LLAP IO: no inputs
-        Map 5 
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 89488 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: (key is not null and value is not null) (type: 
boolean)
-                    Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 450 Data size: 80539 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: 450 Data size: 80539 Basic 
stats: COMPLETE Column stats: NONE
-                        value expressions: _col0 (type: int)
+                      Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                      Merge Join Operator
+                        condition map:
+                             Inner Join 0 to 1
+                        keys:
+                          0 _col0 (type: int)
+                          1 _col0 (type: int)
+                        outputColumnNames: _col1
+                        Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
+                        Reduce Output Operator
+                          key expressions: _col1 (type: string)
+                          sort order: +
+                          Map-reduce partition columns: _col1 (type: string)
+                          Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
-            LLAP IO: no inputs
-        Map 6 
+        Map 5 
             Map Operator Tree:
                 TableScan
-                  alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  alias: c
+                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    predicate: value is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: int)
+                      expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
-                        key expressions: _col0 (type: int)
+                        key expressions: _col0 (type: string)
                         sort order: +
-                        Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                        Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -153,45 +150,29 @@ STAGE PLANS:
                 condition map:
                      Inner Join 0 to 1
                 keys:
-                  0 _col0 (type: string)
-                  1 _col1 (type: string)
-                outputColumnNames: _col1
-                Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-                Reduce Output Operator
-                  key expressions: _col1 (type: int)
-                  sort order: +
-                  Map-reduce partition columns: _col1 (type: int)
-                  Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-        Reducer 3 
-            Execution mode: llap
-            Reduce Operator Tree:
-              Merge Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                keys:
-                  0 _col1 (type: int)
-                  1 _col0 (type: int)
-                Statistics: Num rows: 605 Data size: 55055 Basic stats: 
COMPLETE Column stats: NONE
+                  0 _col1 (type: string)
+                  1 _col0 (type: string)
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
-        Reducer 4 
+        Reducer 3 
             Execution mode: llap
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -230,66 +211,63 @@ STAGE PLANS:
 #### A masked pattern was here ####
       Edges:
         Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 5 (SIMPLE_EDGE)
-        Reducer 3 <- Map 6 (SIMPLE_EDGE), Reducer 2 (SIMPLE_EDGE)
-        Reducer 4 <- Reducer 3 (CUSTOM_SIMPLE_EDGE)
+        Reducer 3 <- Reducer 2 (CUSTOM_SIMPLE_EDGE)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: d
-                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  alias: b
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    predicate: key is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: value (type: string)
+                      expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
-                      Reduce Output Operator
-                        key expressions: _col0 (type: string)
-                        sort order: +
-                        Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
-            Execution mode: llap
-            LLAP IO: no inputs
-        Map 5 
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 89488 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: (key is not null and value is not null) (type: 
boolean)
-                    Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 450 Data size: 80539 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: 450 Data size: 80539 Basic 
stats: COMPLETE Column stats: NONE
-                        value expressions: _col0 (type: int)
+                      Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                      Merge Join Operator
+                        condition map:
+                             Inner Join 0 to 1
+                        keys:
+                          0 _col0 (type: int)
+                          1 _col0 (type: int)
+                        outputColumnNames: _col1
+                        Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
+                        Reduce Output Operator
+                          key expressions: _col1 (type: string)
+                          sort order: +
+                          Map-reduce partition columns: _col1 (type: string)
+                          Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
-            LLAP IO: no inputs
-        Map 6 
+        Map 5 
             Map Operator Tree:
                 TableScan
-                  alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  alias: d
+                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    predicate: value is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: int)
+                      expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
-                        key expressions: _col0 (type: int)
+                        key expressions: _col0 (type: string)
                         sort order: +
-                        Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                        Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -299,45 +277,29 @@ STAGE PLANS:
                 condition map:
                      Inner Join 0 to 1
                 keys:
-                  0 _col0 (type: string)
-                  1 _col1 (type: string)
-                outputColumnNames: _col1
-                Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-                Reduce Output Operator
-                  key expressions: _col1 (type: int)
-                  sort order: +
-                  Map-reduce partition columns: _col1 (type: int)
-                  Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-        Reducer 3 
-            Execution mode: llap
-            Reduce Operator Tree:
-              Merge Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                keys:
-                  0 _col1 (type: int)
-                  1 _col0 (type: int)
-                Statistics: Num rows: 605 Data size: 55055 Basic stats: 
COMPLETE Column stats: NONE
+                  0 _col1 (type: string)
+                  1 _col0 (type: string)
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
-        Reducer 4 
+        Reducer 3 
             Execution mode: llap
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -376,66 +338,63 @@ STAGE PLANS:
 #### A masked pattern was here ####
       Edges:
         Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 5 (SIMPLE_EDGE)
-        Reducer 3 <- Map 6 (SIMPLE_EDGE), Reducer 2 (SIMPLE_EDGE)
-        Reducer 4 <- Reducer 3 (CUSTOM_SIMPLE_EDGE)
+        Reducer 3 <- Reducer 2 (CUSTOM_SIMPLE_EDGE)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: h
-                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  alias: b
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    predicate: key is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: value (type: string)
+                      expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
-                      Reduce Output Operator
-                        key expressions: _col0 (type: string)
-                        sort order: +
-                        Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
-            Execution mode: llap
-            LLAP IO: no inputs
-        Map 5 
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 89488 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: (key is not null and value is not null) (type: 
boolean)
-                    Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 450 Data size: 80539 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: 450 Data size: 80539 Basic 
stats: COMPLETE Column stats: NONE
-                        value expressions: _col0 (type: int)
+                      Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                      Merge Join Operator
+                        condition map:
+                             Inner Join 0 to 1
+                        keys:
+                          0 _col0 (type: int)
+                          1 _col0 (type: int)
+                        outputColumnNames: _col1
+                        Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
+                        Reduce Output Operator
+                          key expressions: _col1 (type: string)
+                          sort order: +
+                          Map-reduce partition columns: _col1 (type: string)
+                          Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
-            LLAP IO: no inputs
-        Map 6 
+        Map 5 
             Map Operator Tree:
                 TableScan
-                  alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  alias: h
+                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    predicate: value is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: int)
+                      expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
-                        key expressions: _col0 (type: int)
+                        key expressions: _col0 (type: string)
                         sort order: +
-                        Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                        Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -445,45 +404,29 @@ STAGE PLANS:
                 condition map:
                      Inner Join 0 to 1
                 keys:
-                  0 _col0 (type: string)
-                  1 _col1 (type: string)
-                outputColumnNames: _col1
-                Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-                Reduce Output Operator
-                  key expressions: _col1 (type: int)
-                  sort order: +
-                  Map-reduce partition columns: _col1 (type: int)
-                  Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-        Reducer 3 
-            Execution mode: llap
-            Reduce Operator Tree:
-              Merge Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                keys:
-                  0 _col1 (type: int)
-                  1 _col0 (type: int)
-                Statistics: Num rows: 605 Data size: 55055 Basic stats: 
COMPLETE Column stats: NONE
+                  0 _col1 (type: string)
+                  1 _col0 (type: string)
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
-        Reducer 4 
+        Reducer 3 
             Execution mode: llap
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -522,66 +465,63 @@ STAGE PLANS:
 #### A masked pattern was here ####
       Edges:
         Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 5 (SIMPLE_EDGE)
-        Reducer 3 <- Map 6 (SIMPLE_EDGE), Reducer 2 (SIMPLE_EDGE)
-        Reducer 4 <- Reducer 3 (CUSTOM_SIMPLE_EDGE)
+        Reducer 3 <- Reducer 2 (CUSTOM_SIMPLE_EDGE)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: c
-                  Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  alias: b
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: string)
+                      expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
-                      Reduce Output Operator
-                        key expressions: UDFToDouble(_col0) (type: double)
-                        sort order: +
-                        Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
-                        Statistics: Num rows: 500 Data size: 43500 Basic 
stats: COMPLETE Column stats: COMPLETE
-            Execution mode: llap
-            LLAP IO: no inputs
-        Map 5 
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
-                      Reduce Output Operator
-                        key expressions: UDFToDouble(_col0) (type: double)
-                        sort order: +
-                        Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
-                        value expressions: _col0 (type: int)
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
+                      Merge Join Operator
+                        condition map:
+                             Inner Join 0 to 1
+                        keys:
+                          0 _col0 (type: int)
+                          1 _col0 (type: int)
+                        outputColumnNames: _col0
+                        Statistics: Num rows: 809 Data size: 3236 Basic stats: 
COMPLETE Column stats: COMPLETE
+                        Reduce Output Operator
+                          key expressions: UDFToDouble(_col0) (type: double)
+                          sort order: +
+                          Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
+                          Statistics: Num rows: 809 Data size: 3236 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
-            LLAP IO: no inputs
-        Map 6 
+        Map 5 
             Map Operator Tree:
                 TableScan
-                  alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  alias: c
+                  Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: int)
+                      expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
-                        key expressions: _col0 (type: int)
+                        key expressions: UDFToDouble(_col0) (type: double)
                         sort order: +
-                        Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                        Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
+                        Statistics: Num rows: 500 Data size: 43500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -593,43 +533,27 @@ STAGE PLANS:
                 keys:
                   0 UDFToDouble(_col0) (type: double)
                   1 UDFToDouble(_col0) (type: double)
-                outputColumnNames: _col1
-                Statistics: Num rows: 550 Data size: 47850 Basic stats: 
COMPLETE Column stats: NONE
-                Reduce Output Operator
-                  key expressions: _col1 (type: int)
-                  sort order: +
-                  Map-reduce partition columns: _col1 (type: int)
-                  Statistics: Num rows: 550 Data size: 47850 Basic stats: 
COMPLETE Column stats: NONE
-        Reducer 3 
-            Execution mode: llap
-            Reduce Operator Tree:
-              Merge Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                keys:
-                  0 _col1 (type: int)
-                  1 _col0 (type: int)
-                Statistics: Num rows: 605 Data size: 52635 Basic stats: 
COMPLETE Column stats: NONE
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
-        Reducer 4 
+        Reducer 3 
             Execution mode: llap
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -674,36 +598,36 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: c
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Merge Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -712,15 +636,15 @@ STAGE PLANS:
                           0 _col0 (type: int)
                           1 _col0 (type: int)
                           2 _col0 (type: int)
-                        Statistics: Num rows: 1045 Data size: 3977 Basic 
stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 1309 Data size: 10472 Basic 
stats: COMPLETE Column stats: COMPLETE
                         Group By Operator
                           aggregations: count()
                           mode: hash
                           outputColumnNames: _col0
-                          Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: COMPLETE
                           Reduce Output Operator
                             sort order: 
-                            Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: NONE
+                            Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: COMPLETE
                             value expressions: _col0 (type: bigint)
             Execution mode: llap
         Reducer 2 
@@ -730,10 +654,10 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -778,57 +702,57 @@ STAGE PLANS:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: a
-                  Statistics: Num rows: 500 Data size: 89488 Basic stats: 
COMPLETE Column stats: NONE
-                  Filter Operator
-                    predicate: (key is not null and value is not null) (type: 
boolean)
-                    Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: int), value (type: string)
-                      outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
-            Map Operator Tree:
-                TableScan
                   alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
+            Map Operator Tree:
+                TableScan
+                  alias: a
+                  Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  Filter Operator
+                    predicate: (key is not null and value is not null) (type: 
boolean)
+                    Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    Select Operator
+                      expressions: key (type: int), value (type: string)
+                      outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Merge Join Operator
                         condition map:
                              Inner Join 0 to 1
                         keys:
                           0 _col0 (type: int)
                           1 _col0 (type: int)
-                        outputColumnNames: _col2
-                        Statistics: Num rows: 522 Data size: 1988 Basic stats: 
COMPLETE Column stats: NONE
+                        outputColumnNames: _col1
+                        Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
                         Reduce Output Operator
-                          key expressions: _col2 (type: string)
+                          key expressions: _col1 (type: string)
                           sort order: +
-                          Map-reduce partition columns: _col2 (type: string)
-                          Statistics: Num rows: 522 Data size: 1988 Basic 
stats: COMPLETE Column stats: NONE
+                          Map-reduce partition columns: _col1 (type: string)
+                          Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
         Map 5 
             Map Operator Tree:
                 TableScan
                   alias: c
-                  Statistics: Num rows: 500 Data size: 87584 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 83204 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 83204 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 475 Data size: 83204 Basic 
stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -838,17 +762,17 @@ STAGE PLANS:
                 condition map:
                      Inner Join 0 to 1
                 keys:
-                  0 _col2 (type: string)
+                  0 _col1 (type: string)
                   1 _col0 (type: string)
-                Statistics: Num rows: 574 Data size: 2186 Basic stats: 
COMPLETE Column stats: NONE
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
         Reducer 3 
             Execution mode: llap
@@ -857,10 +781,10 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -899,66 +823,63 @@ STAGE PLANS:
 #### A masked pattern was here ####
       Edges:
         Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 5 (SIMPLE_EDGE)
-        Reducer 3 <- Map 6 (SIMPLE_EDGE), Reducer 2 (SIMPLE_EDGE)
-        Reducer 4 <- Reducer 3 (CUSTOM_SIMPLE_EDGE)
+        Reducer 3 <- Reducer 2 (CUSTOM_SIMPLE_EDGE)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: c
-                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  alias: b
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    predicate: key is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: value (type: string)
+                      expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
-                      Reduce Output Operator
-                        key expressions: _col0 (type: string)
-                        sort order: +
-                        Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
-            Execution mode: llap
-            LLAP IO: no inputs
-        Map 5 
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 89488 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: (key is not null and value is not null) (type: 
boolean)
-                    Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int), value (type: string)
                       outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 450 Data size: 80539 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: 450 Data size: 80539 Basic 
stats: COMPLETE Column stats: NONE
-                        value expressions: _col0 (type: int)
+                      Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                      Merge Join Operator
+                        condition map:
+                             Inner Join 0 to 1
+                        keys:
+                          0 _col0 (type: int)
+                          1 _col0 (type: int)
+                        outputColumnNames: _col1
+                        Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
+                        Reduce Output Operator
+                          key expressions: _col1 (type: string)
+                          sort order: +
+                          Map-reduce partition columns: _col1 (type: string)
+                          Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
-            LLAP IO: no inputs
-        Map 6 
+        Map 5 
             Map Operator Tree:
                 TableScan
-                  alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  alias: c
+                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
-                    predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    predicate: value is not null (type: boolean)
+                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: int)
+                      expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
-                        key expressions: _col0 (type: int)
+                        key expressions: _col0 (type: string)
                         sort order: +
-                        Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                        Map-reduce partition columns: _col0 (type: string)
+                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -968,45 +889,29 @@ STAGE PLANS:
                 condition map:
                      Inner Join 0 to 1
                 keys:
-                  0 _col0 (type: string)
-                  1 _col1 (type: string)
-                outputColumnNames: _col1
-                Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-                Reduce Output Operator
-                  key expressions: _col1 (type: int)
-                  sort order: +
-                  Map-reduce partition columns: _col1 (type: int)
-                  Statistics: Num rows: 550 Data size: 50050 Basic stats: 
COMPLETE Column stats: NONE
-        Reducer 3 
-            Execution mode: llap
-            Reduce Operator Tree:
-              Merge Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                keys:
-                  0 _col1 (type: int)
-                  1 _col0 (type: int)
-                Statistics: Num rows: 605 Data size: 55055 Basic stats: 
COMPLETE Column stats: NONE
+                  0 _col1 (type: string)
+                  1 _col0 (type: string)
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
-        Reducer 4 
+        Reducer 3 
             Execution mode: llap
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -1045,66 +950,63 @@ STAGE PLANS:
 #### A masked pattern was here ####
       Edges:
         Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 5 (SIMPLE_EDGE)
-        Reducer 3 <- Map 6 (SIMPLE_EDGE), Reducer 2 (SIMPLE_EDGE)
-        Reducer 4 <- Reducer 3 (CUSTOM_SIMPLE_EDGE)
+        Reducer 3 <- Reducer 2 (CUSTOM_SIMPLE_EDGE)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: c
-                  Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  alias: b
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: string)
+                      expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
-                      Reduce Output Operator
-                        key expressions: UDFToDouble(_col0) (type: double)
-                        sort order: +
-                        Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
-                        Statistics: Num rows: 500 Data size: 43500 Basic 
stats: COMPLETE Column stats: COMPLETE
-            Execution mode: llap
-            LLAP IO: no inputs
-        Map 5 
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
-                      Reduce Output Operator
-                        key expressions: UDFToDouble(_col0) (type: double)
-                        sort order: +
-                        Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
-                        value expressions: _col0 (type: int)
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
+                      Merge Join Operator
+                        condition map:
+                             Inner Join 0 to 1
+                        keys:
+                          0 _col0 (type: int)
+                          1 _col0 (type: int)
+                        outputColumnNames: _col0
+                        Statistics: Num rows: 809 Data size: 3236 Basic stats: 
COMPLETE Column stats: COMPLETE
+                        Reduce Output Operator
+                          key expressions: UDFToDouble(_col0) (type: double)
+                          sort order: +
+                          Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
+                          Statistics: Num rows: 809 Data size: 3236 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
-            LLAP IO: no inputs
-        Map 6 
+        Map 5 
             Map Operator Tree:
                 TableScan
-                  alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  alias: c
+                  Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
-                      expressions: key (type: int)
+                      expressions: key (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 43500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
-                        key expressions: _col0 (type: int)
+                        key expressions: UDFToDouble(_col0) (type: double)
                         sort order: +
-                        Map-reduce partition columns: _col0 (type: int)
-                        Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                        Map-reduce partition columns: UDFToDouble(_col0) 
(type: double)
+                        Statistics: Num rows: 500 Data size: 43500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1116,43 +1018,27 @@ STAGE PLANS:
                 keys:
                   0 UDFToDouble(_col0) (type: double)
                   1 UDFToDouble(_col0) (type: double)
-                outputColumnNames: _col1
-                Statistics: Num rows: 550 Data size: 47850 Basic stats: 
COMPLETE Column stats: NONE
-                Reduce Output Operator
-                  key expressions: _col1 (type: int)
-                  sort order: +
-                  Map-reduce partition columns: _col1 (type: int)
-                  Statistics: Num rows: 550 Data size: 47850 Basic stats: 
COMPLETE Column stats: NONE
-        Reducer 3 
-            Execution mode: llap
-            Reduce Operator Tree:
-              Merge Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                keys:
-                  0 _col1 (type: int)
-                  1 _col0 (type: int)
-                Statistics: Num rows: 605 Data size: 52635 Basic stats: 
COMPLETE Column stats: NONE
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
-        Reducer 4 
+        Reducer 3 
             Execution mode: llap
             Reduce Operator Tree:
               Group By Operator
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -1197,36 +1083,36 @@ STAGE PLANS:
             Map Operator Tree:
                 TableScan
                   alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: c
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
             Map Operator Tree:
                 TableScan
                   alias: a
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Merge Join Operator
                         condition map:
                              Inner Join 0 to 1
@@ -1235,15 +1121,15 @@ STAGE PLANS:
                           0 _col0 (type: int)
                           1 _col0 (type: int)
                           2 _col0 (type: int)
-                        Statistics: Num rows: 1045 Data size: 3977 Basic 
stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 1309 Data size: 10472 Basic 
stats: COMPLETE Column stats: COMPLETE
                         Group By Operator
                           aggregations: count()
                           mode: hash
                           outputColumnNames: _col0
-                          Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: NONE
+                          Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: COMPLETE
                           Reduce Output Operator
                             sort order: 
-                            Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: NONE
+                            Statistics: Num rows: 1 Data size: 8 Basic stats: 
COMPLETE Column stats: COMPLETE
                             value expressions: _col0 (type: bigint)
             Execution mode: llap
         Reducer 2 
@@ -1253,10 +1139,10 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
@@ -1301,57 +1187,57 @@ STAGE PLANS:
         Map 1 
             Map Operator Tree:
                 TableScan
-                  alias: a
-                  Statistics: Num rows: 500 Data size: 89488 Basic stats: 
COMPLETE Column stats: NONE
-                  Filter Operator
-                    predicate: (key is not null and value is not null) (type: 
boolean)
-                    Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
-                    Select Operator
-                      expressions: key (type: int), value (type: string)
-                      outputColumnNames: _col0, _col1
-                      Statistics: Num rows: 450 Data size: 80539 Basic stats: 
COMPLETE Column stats: NONE
-            Map Operator Tree:
-                TableScan
                   alias: b
-                  Statistics: Num rows: 500 Data size: 1904 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: key is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: key (type: int)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 1808 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 2000 Basic stats: 
COMPLETE Column stats: COMPLETE
+            Map Operator Tree:
+                TableScan
+                  alias: a
+                  Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                  Filter Operator
+                    predicate: (key is not null and value is not null) (type: 
boolean)
+                    Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
+                    Select Operator
+                      expressions: key (type: int), value (type: string)
+                      outputColumnNames: _col0, _col1
+                      Statistics: Num rows: 500 Data size: 47500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Merge Join Operator
                         condition map:
                              Inner Join 0 to 1
                         keys:
                           0 _col0 (type: int)
                           1 _col0 (type: int)
-                        outputColumnNames: _col2
-                        Statistics: Num rows: 522 Data size: 1988 Basic stats: 
COMPLETE Column stats: NONE
+                        outputColumnNames: _col1
+                        Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
                         Reduce Output Operator
-                          key expressions: _col2 (type: string)
+                          key expressions: _col1 (type: string)
                           sort order: +
-                          Map-reduce partition columns: _col2 (type: string)
-                          Statistics: Num rows: 522 Data size: 1988 Basic 
stats: COMPLETE Column stats: NONE
+                          Map-reduce partition columns: _col1 (type: string)
+                          Statistics: Num rows: 809 Data size: 73619 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
         Map 5 
             Map Operator Tree:
                 TableScan
                   alias: c
-                  Statistics: Num rows: 500 Data size: 87584 Basic stats: 
COMPLETE Column stats: NONE
+                  Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                   Filter Operator
                     predicate: value is not null (type: boolean)
-                    Statistics: Num rows: 475 Data size: 83204 Basic stats: 
COMPLETE Column stats: NONE
+                    Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                     Select Operator
                       expressions: value (type: string)
                       outputColumnNames: _col0
-                      Statistics: Num rows: 475 Data size: 83204 Basic stats: 
COMPLETE Column stats: NONE
+                      Statistics: Num rows: 500 Data size: 45500 Basic stats: 
COMPLETE Column stats: COMPLETE
                       Reduce Output Operator
                         key expressions: _col0 (type: string)
                         sort order: +
                         Map-reduce partition columns: _col0 (type: string)
-                        Statistics: Num rows: 475 Data size: 83204 Basic 
stats: COMPLETE Column stats: NONE
+                        Statistics: Num rows: 500 Data size: 45500 Basic 
stats: COMPLETE Column stats: COMPLETE
             Execution mode: llap
             LLAP IO: no inputs
         Reducer 2 
@@ -1361,17 +1247,17 @@ STAGE PLANS:
                 condition map:
                      Inner Join 0 to 1
                 keys:
-                  0 _col2 (type: string)
+                  0 _col1 (type: string)
                   1 _col0 (type: string)
-                Statistics: Num rows: 574 Data size: 2186 Basic stats: 
COMPLETE Column stats: NONE
+                Statistics: Num rows: 1309 Data size: 10472 Basic stats: 
COMPLETE Column stats: COMPLETE
                 Group By Operator
                   aggregations: count()
                   mode: hash
                   outputColumnNames: _col0
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   Reduce Output Operator
                     sort order: 
-                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                    Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                     value expressions: _col0 (type: bigint)
         Reducer 3 
             Execution mode: llap
@@ -1380,10 +1266,10 @@ STAGE PLANS:
                 aggregations: count(VALUE._col0)
                 mode: mergepartial
                 outputColumnNames: _col0
-                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                 File Output Operator
                   compressed: false
-                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: NONE
+                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE 
Column stats: COMPLETE
                   table:
                       input format: 
org.apache.hadoop.mapred.SequenceFileInputFormat
                       output format: 
org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat

Reply via email to