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Posted to commits@hive.apache.org by xu...@apache.org on 2014/11/25 14:03:23 UTC

svn commit: r1641614 [8/43] - in /hive/branches/spark: itests/src/test/resources/ ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/ ql/src/java/org/apache/hadoop/hive/ql/optimizer/spark/ ql/src/java/org/apache/hadoop/hive/ql/parse/spark/ ql/src...

Modified: hive/branches/spark/ql/src/test/results/clientpositive/spark/bucket_map_join_tez1.q.out
URL: http://svn.apache.org/viewvc/hive/branches/spark/ql/src/test/results/clientpositive/spark/bucket_map_join_tez1.q.out?rev=1641614&r1=1641613&r2=1641614&view=diff
==============================================================================
--- hive/branches/spark/ql/src/test/results/clientpositive/spark/bucket_map_join_tez1.q.out (original)
+++ hive/branches/spark/ql/src/test/results/clientpositive/spark/bucket_map_join_tez1.q.out Tue Nov 25 13:03:18 2014
@@ -117,14 +117,35 @@ select a.key, a.value, b.value
 from tab a join tab_part b on a.key = b.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
+  Stage: Stage-3
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        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 (type: boolean)
+                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {value}
+                        1 {value}
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+
   Stage: Stage-1
     Spark
-      Edges:
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Map 3 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
@@ -135,47 +156,32 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
-            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 (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col7
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: string), _col7 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {key} {value}
+                        1 {value}
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1, _col7
+                      input vertices:
+                        0 Map 2
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: string), _col7 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -198,32 +204,18 @@ from (select sum(substr(srcbucket_mapjoi
 join tab b on a.k1 = b.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-3
     Spark
       Edges:
-        Reducer 4 <- Map 3 (GROUP, 1)
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Reducer 4 (PARTITION-LEVEL SORT, 1)
+        Reducer 3 <- Map 2 (GROUP, 1)
 #### A masked pattern was here ####
       Vertices:
-        Map 1 
-            Map Operator Tree:
-                TableScan
-                  alias: b
-                  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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
+        Map 2 
             Map Operator Tree:
                 TableScan
                   alias: srcbucket_mapjoin
@@ -247,28 +239,9 @@ STAGE PLANS:
                           Map-reduce partition columns: _col0 (type: int)
                           Statistics: Num rows: 14 Data size: 1456 Basic stats: COMPLETE Column stats: NONE
                           value expressions: _col1 (type: double)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {VALUE._col0} {KEY.reducesinkkey0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col3
-                Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col1 (type: int), _col0 (type: double), _col3 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-        Reducer 4 
+        Reducer 3 
+            Local Work:
+              Map Reduce Local Work
             Reduce Operator Tree:
               Group By Operator
                 aggregations: sum(VALUE._col0)
@@ -280,12 +253,52 @@ STAGE PLANS:
                   expressions: _col1 (type: double), _col0 (type: int)
                   outputColumnNames: _col0, _col1
                   Statistics: Num rows: 7 Data size: 728 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: 7 Data size: 728 Basic stats: COMPLETE Column stats: NONE
-                    value expressions: _col0 (type: double)
+                  Spark HashTable Sink Operator
+                    condition expressions:
+                      0 {_col0}
+                      1 {value}
+                    keys:
+                      0 _col1 (type: int)
+                      1 key (type: int)
+
+  Stage: Stage-1
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 1 
+            Map Operator Tree:
+                TableScan
+                  alias: b
+                  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
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {_col0} {_col1}
+                        1 {value}
+                      keys:
+                        0 _col1 (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1, _col3
+                      input vertices:
+                        0 Reducer 3
+                      Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col1 (type: int), _col0 (type: double), _col3 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -304,16 +317,14 @@ from (select sum(substr(tab.value,5)) as
 join tab b on a.k1 = b.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3, Stage-4
+  Stage-4 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-3
     Spark
-      Edges:
-        Reducer 4 <- Map 3 (PARTITION-LEVEL SORT, 1), Map 6 (PARTITION-LEVEL SORT, 1)
-        Reducer 5 <- Reducer 4 (GROUP, 1)
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Reducer 5 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
@@ -324,13 +335,23 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {_col0} {_col1}
+                        1 {value}
+                      keys:
+                        0 _col1 (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+
+  Stage: Stage-1
+    Spark
+      Edges:
+        Reducer 3 <- Map 2 (GROUP, 1)
+#### A masked pattern was here ####
+      Vertices:
+        Map 2 
             Map Operator Tree:
                 TableScan
                   alias: tab_part
@@ -338,73 +359,40 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-        Map 6 
-            Map Operator Tree:
-                TableScan
-                  alias: tab
-                  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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {VALUE._col0} {KEY.reducesinkkey0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col3
-                Statistics: Num rows: 150 Data size: 1600 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col1 (type: int), _col0 (type: double), _col3 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 150 Data size: 1600 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 150 Data size: 1600 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-        Reducer 4 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 
-                  1 {KEY.reducesinkkey0} {VALUE._col0}
-                outputColumnNames: _col6, _col7
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col6 (type: int), _col7 (type: string)
-                  outputColumnNames: _col6, _col7
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  Group By Operator
-                    aggregations: sum(substr(_col7, 5))
-                    keys: _col6 (type: int)
-                    mode: hash
-                    outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: _col0 (type: int)
-                      sort order: +
-                      Map-reduce partition columns: _col0 (type: int)
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 
+                        1 {key} {value}
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col6, _col7
+                      input vertices:
+                        1 Map 4
                       Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: _col1 (type: double)
-        Reducer 5 
+                      Select Operator
+                        expressions: _col6 (type: int), _col7 (type: string)
+                        outputColumnNames: _col6, _col7
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Group By Operator
+                          aggregations: sum(substr(_col7, 5))
+                          keys: _col6 (type: int)
+                          mode: hash
+                          outputColumnNames: _col0, _col1
+                          Statistics: Num rows: 275 Data size: 2921 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: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                            value expressions: _col1 (type: double)
+            Local Work:
+              Map Reduce Local Work
+        Reducer 3 
+            Local Work:
+              Map Reduce Local Work
             Reduce Operator Tree:
               Group By Operator
                 aggregations: sum(VALUE._col0)
@@ -416,12 +404,52 @@ STAGE PLANS:
                   expressions: _col1 (type: double), _col0 (type: int)
                   outputColumnNames: _col0, _col1
                   Statistics: Num rows: 137 Data size: 1455 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: 137 Data size: 1455 Basic stats: COMPLETE Column stats: NONE
-                    value expressions: _col0 (type: double)
+                  Map Join Operator
+                    condition map:
+                         Inner Join 0 to 1
+                    condition expressions:
+                      0 {_col0} {_col1}
+                      1 {value}
+                    keys:
+                      0 _col1 (type: int)
+                      1 key (type: int)
+                    outputColumnNames: _col0, _col1, _col3
+                    input vertices:
+                      1 Map 1
+                    Statistics: Num rows: 150 Data size: 1600 Basic stats: COMPLETE Column stats: NONE
+                    Select Operator
+                      expressions: _col1 (type: int), _col0 (type: double), _col3 (type: string)
+                      outputColumnNames: _col0, _col1, _col2
+                      Statistics: Num rows: 150 Data size: 1600 Basic stats: COMPLETE Column stats: NONE
+                      File Output Operator
+                        compressed: false
+                        Statistics: Num rows: 150 Data size: 1600 Basic stats: COMPLETE Column stats: NONE
+                        table:
+                            input format: org.apache.hadoop.mapred.TextInputFormat
+                            output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                            serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+
+  Stage: Stage-4
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 4 
+            Map Operator Tree:
+                TableScan
+                  alias: tab
+                  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
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 
+                        1 {value}
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -440,107 +468,82 @@ from (select sum(substr(x.value,5)) as v
 join tab_part b on a.k1 = b.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-4 is a root stage
+  Stage-3 depends on stages: Stage-4
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-4
     Spark
-      Edges:
-        Reducer 4 <- Map 3 (PARTITION-LEVEL SORT, 1), Map 6 (PARTITION-LEVEL SORT, 1)
-        Reducer 5 <- Reducer 4 (GROUP, 1)
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Reducer 5 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
-        Map 1 
-            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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
+        Map 4 
             Map Operator Tree:
                 TableScan
-                  alias: x
+                  alias: y
                   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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 6 
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {key} {value}
+                        1 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+
+  Stage: Stage-3
+    Spark
+      Edges:
+        Reducer 3 <- Map 2 (GROUP, 1)
+#### A masked pattern was here ####
+      Vertices:
+        Map 2 
             Map Operator Tree:
                 TableScan
-                  alias: y
+                  alias: x
                   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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {VALUE._col0} {KEY.reducesinkkey0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col3
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col1 (type: int), _col0 (type: double), _col3 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-        Reducer 4 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 
-                outputColumnNames: _col0, _col1
-                Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: string)
-                  outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
-                  Group By Operator
-                    aggregations: sum(substr(_col1, 5))
-                    keys: _col0 (type: int)
-                    mode: hash
-                    outputColumnNames: _col0, _col1
-                    Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: _col0 (type: int)
-                      sort order: +
-                      Map-reduce partition columns: _col0 (type: int)
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {key} {value}
+                        1 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1
+                      input vertices:
+                        1 Map 4
                       Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: _col1 (type: double)
-        Reducer 5 
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: string)
+                        outputColumnNames: _col0, _col1
+                        Statistics: Num rows: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
+                        Group By Operator
+                          aggregations: sum(substr(_col1, 5))
+                          keys: _col0 (type: int)
+                          mode: hash
+                          outputColumnNames: _col0, _col1
+                          Statistics: Num rows: 133 Data size: 1411 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: 133 Data size: 1411 Basic stats: COMPLETE Column stats: NONE
+                            value expressions: _col1 (type: double)
+            Local Work:
+              Map Reduce Local Work
+        Reducer 3 
+            Local Work:
+              Map Reduce Local Work
             Reduce Operator Tree:
               Group By Operator
                 aggregations: sum(VALUE._col0)
@@ -552,12 +555,52 @@ STAGE PLANS:
                   expressions: _col1 (type: double), _col0 (type: int)
                   outputColumnNames: _col0, _col1
                   Statistics: Num rows: 66 Data size: 700 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: 66 Data size: 700 Basic stats: COMPLETE Column stats: NONE
-                    value expressions: _col0 (type: double)
+                  Spark HashTable Sink Operator
+                    condition expressions:
+                      0 {_col0}
+                      1 {value}
+                    keys:
+                      0 _col1 (type: int)
+                      1 key (type: int)
+
+  Stage: Stage-1
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 1 
+            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
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {_col0} {_col1}
+                        1 {value}
+                      keys:
+                        0 _col1 (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1, _col3
+                      input vertices:
+                        0 Reducer 3
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col1 (type: int), _col0 (type: double), _col3 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -576,14 +619,13 @@ select a.key, a.value, b.value
 from tab_part a join tab b on a.key = b.key join tab c on a.key = c.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-3
     Spark
-      Edges:
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Map 3 (PARTITION-LEVEL SORT, 1), Map 4 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
@@ -594,13 +636,18 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {key} {value}
+                        1 {value}
+                        2 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                        2 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+        Map 2 
             Map Operator Tree:
                 TableScan
                   alias: c
@@ -608,12 +655,23 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-        Map 4 
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {key} {value}
+                        1 {value}
+                        2 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                        2 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+
+  Stage: Stage-1
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 3 
             Map Operator Tree:
                 TableScan
                   alias: a
@@ -621,35 +679,36 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                     Inner Join 0 to 2
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 {VALUE._col0}
-                  2 
-                outputColumnNames: _col0, _col1, _col7
-                Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: string), _col7 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                           Inner Join 0 to 2
+                      condition expressions:
+                        0 {key} {value}
+                        1 {value}
+                        2 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                        2 key (type: int)
+                      outputColumnNames: _col0, _col1, _col7
+                      input vertices:
+                        1 Map 1
+                        2 Map 2
+                      Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: string), _col7 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -666,15 +725,13 @@ select a.key, a.value, c.value
 from (select x.key, x.value from tab_part x join tab y on x.key = y.key) a join tab c on a.key = c.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-3
     Spark
-      Edges:
-        Reducer 4 <- Map 3 (PARTITION-LEVEL SORT, 1), Map 5 (PARTITION-LEVEL SORT, 1)
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Reducer 4 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
@@ -685,80 +742,88 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {_col0} {_col1}
+                        1 {value}
+                      keys:
+                        0 _col0 (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
         Map 3 
             Map Operator Tree:
                 TableScan
-                  alias: x
-                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
+                  alias: y
+                  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: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 5 
+                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {key} {value}
+                        1 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+
+  Stage: Stage-1
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 2 
             Map Operator Tree:
                 TableScan
-                  alias: y
-                  Statistics: Num rows: 242 Data size: 2566 Basic stats: COMPLETE Column stats: NONE
+                  alias: x
+                  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: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col3
-                Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: string), _col3 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-        Reducer 4 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 
-                outputColumnNames: _col0, _col1
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: string)
-                  outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 275 Data size: 2921 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: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    value expressions: _col1 (type: string)
+                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {key} {value}
+                        1 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1
+                      input vertices:
+                        1 Map 3
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: string)
+                        outputColumnNames: _col0, _col1
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        Map Join Operator
+                          condition map:
+                               Inner Join 0 to 1
+                          condition expressions:
+                            0 {_col0} {_col1}
+                            1 {value}
+                          keys:
+                            0 _col0 (type: int)
+                            1 key (type: int)
+                          outputColumnNames: _col0, _col1, _col3
+                          input vertices:
+                            1 Map 1
+                          Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                          Select Operator
+                            expressions: _col0 (type: int), _col1 (type: string), _col3 (type: string)
+                            outputColumnNames: _col0, _col1, _col2
+                            Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                            File Output Operator
+                              compressed: false
+                              Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                              table:
+                                  input format: org.apache.hadoop.mapred.TextInputFormat
+                                  output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                                  serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -779,32 +844,18 @@ from (select key, sum(substr(srcbucket_m
 join tab_part b on a.key = b.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-3
     Spark
       Edges:
-        Reducer 4 <- Map 3 (GROUP, 1)
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Reducer 4 (PARTITION-LEVEL SORT, 1)
+        Reducer 3 <- Map 2 (GROUP, 1)
 #### A masked pattern was here ####
       Vertices:
-        Map 1 
-            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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
+        Map 2 
             Map Operator Tree:
                 TableScan
                   alias: srcbucket_mapjoin
@@ -828,28 +879,9 @@ STAGE PLANS:
                           Map-reduce partition columns: _col0 (type: int)
                           Statistics: Num rows: 14 Data size: 1456 Basic stats: COMPLETE Column stats: NONE
                           value expressions: _col1 (type: double)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col3
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: double), _col3 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-        Reducer 4 
+        Reducer 3 
+            Local Work:
+              Map Reduce Local Work
             Reduce Operator Tree:
               Group By Operator
                 aggregations: sum(VALUE._col0)
@@ -861,12 +893,52 @@ STAGE PLANS:
                   expressions: _col0 (type: int), _col1 (type: double)
                   outputColumnNames: _col0, _col1
                   Statistics: Num rows: 7 Data size: 728 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: 7 Data size: 728 Basic stats: COMPLETE Column stats: NONE
-                    value expressions: _col1 (type: double)
+                  Spark HashTable Sink Operator
+                    condition expressions:
+                      0 {_col1}
+                      1 {value}
+                    keys:
+                      0 _col0 (type: int)
+                      1 key (type: int)
+
+  Stage: Stage-1
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 1 
+            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
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {_col0} {_col1}
+                        1 {value}
+                      keys:
+                        0 _col0 (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1, _col3
+                      input vertices:
+                        0 Reducer 3
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: double), _col3 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -885,32 +957,18 @@ from (select key, sum(substr(srcbucket_m
 join tab_part b on a.key = b.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-3
     Spark
       Edges:
-        Reducer 4 <- Map 3 (GROUP, 1)
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Reducer 4 (PARTITION-LEVEL SORT, 1)
+        Reducer 3 <- Map 2 (GROUP, 1)
 #### A masked pattern was here ####
       Vertices:
-        Map 1 
-            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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
+        Map 2 
             Map Operator Tree:
                 TableScan
                   alias: srcbucket_mapjoin
@@ -928,28 +986,9 @@ STAGE PLANS:
                         Map-reduce partition columns: key (type: int)
                         Statistics: Num rows: 14 Data size: 1456 Basic stats: COMPLETE Column stats: NONE
                         value expressions: substr(value, 5) (type: string)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col3
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: double), _col3 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-        Reducer 4 
+        Reducer 3 
+            Local Work:
+              Map Reduce Local Work
             Reduce Operator Tree:
               Group By Operator
                 aggregations: sum(VALUE._col0)
@@ -961,12 +1000,52 @@ STAGE PLANS:
                   expressions: _col0 (type: int), _col1 (type: double)
                   outputColumnNames: _col0, _col1
                   Statistics: Num rows: 7 Data size: 728 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: 7 Data size: 728 Basic stats: COMPLETE Column stats: NONE
-                    value expressions: _col1 (type: double)
+                  Spark HashTable Sink Operator
+                    condition expressions:
+                      0 {_col1}
+                      1 {value}
+                    keys:
+                      0 _col0 (type: int)
+                      1 key (type: int)
+
+  Stage: Stage-1
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 1 
+            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
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {_col0} {_col1}
+                        1 {value}
+                      keys:
+                        0 _col0 (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1, _col3
+                      input vertices:
+                        0 Reducer 3
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: double), _col3 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -985,14 +1064,35 @@ select a.key, a.value, b.value
 from tab a join tab_part b on a.value = b.value
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
+  Stage: Stage-3
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 2 
+            Map Operator Tree:
+                TableScan
+                  alias: a
+                  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
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {key}
+                        1 {value}
+                      keys:
+                        0 value (type: string)
+                        1 value (type: string)
+            Local Work:
+              Map Reduce Local Work
+
   Stage: Stage-1
     Spark
-      Edges:
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Map 3 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
@@ -1003,46 +1103,32 @@ STAGE PLANS:
                   Filter Operator
                     predicate: value is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: value (type: string)
-                      sort order: +
-                      Map-reduce partition columns: value (type: string)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-        Map 3 
-            Map Operator Tree:
-                TableScan
-                  alias: a
-                  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
-                    Reduce Output Operator
-                      key expressions: value (type: string)
-                      sort order: +
-                      Map-reduce partition columns: value (type: string)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: key (type: int)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {VALUE._col0} {KEY.reducesinkkey0}
-                  1 {KEY.reducesinkkey0}
-                outputColumnNames: _col0, _col1, _col7
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: string), _col7 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {key} {value}
+                        1 {value}
+                      keys:
+                        0 value (type: string)
+                        1 value (type: string)
+                      outputColumnNames: _col0, _col1, _col7
+                      input vertices:
+                        0 Map 2
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: string), _col7 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -1081,14 +1167,35 @@ select a.key, a.value, b.value
 from tab1 a join tab_part b on a.key = b.key
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
+  Stage: Stage-3
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        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 (type: boolean)
+                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {value}
+                        1 {value}
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+
   Stage: Stage-1
     Spark
-      Edges:
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Map 3 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
@@ -1099,47 +1206,32 @@ STAGE PLANS:
                   Filter Operator
                     predicate: key is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Map 3 
-            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 (type: boolean)
-                    Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 121 Data size: 1283 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col1, _col6
-                Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col1 (type: string), _col6 (type: string)
-                  outputColumnNames: _col0, _col1, _col2
-                  Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {key} {value}
+                        1 {value}
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1, _col6
+                      input vertices:
+                        0 Map 2
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Select Operator
+                        expressions: _col0 (type: int), _col1 (type: string), _col6 (type: string)
+                        outputColumnNames: _col0, _col1, _col2
+                        Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                        File Output Operator
+                          compressed: false
+                          Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                          table:
+                              input format: org.apache.hadoop.mapred.TextInputFormat
+                              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator
@@ -1152,15 +1244,13 @@ PREHOOK: type: QUERY
 POSTHOOK: query: explain select a.key, b.key from tab_part a join tab_part c on a.key = c.key join tab_part b on a.value = b.value
 POSTHOOK: type: QUERY
 STAGE DEPENDENCIES:
-  Stage-1 is a root stage
+  Stage-3 is a root stage
+  Stage-1 depends on stages: Stage-3
   Stage-0 depends on stages: Stage-1
 
 STAGE PLANS:
-  Stage: Stage-1
+  Stage: Stage-3
     Spark
-      Edges:
-        Reducer 4 <- Map 3 (PARTITION-LEVEL SORT, 1), Map 5 (PARTITION-LEVEL SORT, 1)
-        Reducer 2 <- Map 1 (PARTITION-LEVEL SORT, 1), Reducer 4 (PARTITION-LEVEL SORT, 1)
 #### A masked pattern was here ####
       Vertices:
         Map 1 
@@ -1171,76 +1261,84 @@ STAGE PLANS:
                   Filter Operator
                     predicate: value is not null (type: boolean)
                     Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: value (type: string)
-                      sort order: +
-                      Map-reduce partition columns: value (type: string)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: key (type: int)
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {_col0}
+                        1 {key}
+                      keys:
+                        0 _col1 (type: string)
+                        1 value (type: string)
+            Local Work:
+              Map Reduce Local Work
         Map 3 
             Map Operator Tree:
                 TableScan
-                  alias: c
+                  alias: a
                   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
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-        Map 5 
+                    predicate: (key is not null and value is not null) (type: boolean)
+                    Statistics: Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
+                    Spark HashTable Sink Operator
+                      condition expressions:
+                        0 {value}
+                        1 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+            Local Work:
+              Map Reduce Local Work
+
+  Stage: Stage-1
+    Spark
+#### A masked pattern was here ####
+      Vertices:
+        Map 2 
             Map Operator Tree:
                 TableScan
-                  alias: a
+                  alias: c
                   Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                   Filter Operator
-                    predicate: (key is not null and value is not null) (type: boolean)
-                    Statistics: Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                    Reduce Output Operator
-                      key expressions: key (type: int)
-                      sort order: +
-                      Map-reduce partition columns: key (type: int)
-                      Statistics: Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                      value expressions: value (type: string)
-        Reducer 2 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {VALUE._col0}
-                  1 {VALUE._col0}
-                outputColumnNames: _col0, _col12
-                Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-                Select Operator
-                  expressions: _col0 (type: int), _col12 (type: int)
-                  outputColumnNames: _col0, _col1
-                  Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-                  File Output Operator
-                    compressed: false
-                    Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-                    table:
-                        input format: org.apache.hadoop.mapred.TextInputFormat
-                        output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
-                        serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
-        Reducer 4 
-            Reduce Operator Tree:
-              Join Operator
-                condition map:
-                     Inner Join 0 to 1
-                condition expressions:
-                  0 {KEY.reducesinkkey0} {VALUE._col0}
-                  1 
-                outputColumnNames: _col0, _col1
-                Statistics: Num rows: 275 Data size: 2921 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: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                  value expressions: _col0 (type: int)
+                    predicate: key is not null (type: boolean)
+                    Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
+                    Map Join Operator
+                      condition map:
+                           Inner Join 0 to 1
+                      condition expressions:
+                        0 {key} {value}
+                        1 
+                      keys:
+                        0 key (type: int)
+                        1 key (type: int)
+                      outputColumnNames: _col0, _col1
+                      input vertices:
+                        0 Map 3
+                      Statistics: Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
+                      Map Join Operator
+                        condition map:
+                             Inner Join 0 to 1
+                        condition expressions:
+                          0 {_col0}
+                          1 {key}
+                        keys:
+                          0 _col1 (type: string)
+                          1 value (type: string)
+                        outputColumnNames: _col0, _col12
+                        input vertices:
+                          1 Map 1
+                        Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                        Select Operator
+                          expressions: _col0 (type: int), _col12 (type: int)
+                          outputColumnNames: _col0, _col1
+                          Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                          File Output Operator
+                            compressed: false
+                            Statistics: Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
+                            table:
+                                input format: org.apache.hadoop.mapred.TextInputFormat
+                                output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
+                                serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
+            Local Work:
+              Map Reduce Local Work
 
   Stage: Stage-0
     Fetch Operator