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From prasan...@apache.org
Subject [27/51] [partial] hive git commit: HIVE-14502: Convert MiniTez tests to MiniLlap tests (Prasanth Jayachandran reviewed by Siddharth Seth)
Date Tue, 23 Aug 2016 18:45:58 GMT
http://git-wip-us.apache.org/repos/asf/hive/blob/5f01dc42/ql/src/test/results/clientpositive/llap/explainuser_2.q.out
----------------------------------------------------------------------
diff --git a/ql/src/test/results/clientpositive/llap/explainuser_2.q.out b/ql/src/test/results/clientpositive/llap/explainuser_2.q.out
index 57cd8ec..840b757 100644
--- a/ql/src/test/results/clientpositive/llap/explainuser_2.q.out
+++ b/ql/src/test/results/clientpositive/llap/explainuser_2.q.out
@@ -185,81 +185,47 @@ Reducer 2 <- Map 1 (SIMPLE_EDGE), Map 4 (SIMPLE_EDGE)
 Reducer 3 <- Map 5 (SIMPLE_EDGE), Reducer 2 (SIMPLE_EDGE)
 
 Stage-0
-   Fetch Operator
-      limit:-1
-      Stage-1
-         Reducer 3
-         File Output Operator [FS_18]
-            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"}
-            Select Operator [SEL_17]
-               outputColumnNames:["_col0","_col1","_col2"]
-               Statistics:Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-               Merge Join Operator [MERGEJOIN_28]
-               |  condition map:[{"":"Inner Join 0 to 1"}]
-               |  keys:{"0":"_col3 (type: string)","1":"_col0 (type: string)"}
-               |  outputColumnNames:["_col0","_col3","_col6"]
-               |  Statistics:Num rows: 302 Data size: 3213 Basic stats: COMPLETE Column stats: NONE
-               |<-Map 5 [SIMPLE_EDGE]
-               |  Reduce Output Operator [RS_15]
-               |     key expressions:_col0 (type: string)
-               |     Map-reduce partition columns:_col0 (type: string)
-               |     sort order:+
-               |     Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |     value expressions:_col1 (type: string)
-               |     Select Operator [SEL_6]
-               |        outputColumnNames:["_col0","_col1"]
-               |        Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |        Filter Operator [FIL_26]
-               |           predicate:key is not null (type: boolean)
-               |           Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |           TableScan [TS_5]
-               |              alias:y
-               |              Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-               |<-Reducer 2 [SIMPLE_EDGE]
-                  Reduce Output Operator [RS_13]
-                     key expressions:_col3 (type: string)
-                     Map-reduce partition columns:_col3 (type: string)
-                     sort order:+
-                     Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                     value expressions:_col0 (type: string)
-                     Merge Join Operator [MERGEJOIN_27]
-                     |  condition map:[{"":"Inner Join 0 to 1"}]
-                     |  keys:{"0":"_col0 (type: string)","1":"_col1 (type: string)"}
-                     |  outputColumnNames:["_col0","_col3"]
-                     |  Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                     |<-Map 1 [SIMPLE_EDGE]
-                     |  Reduce Output Operator [RS_8]
-                     |     key expressions:_col0 (type: string)
-                     |     Map-reduce partition columns:_col0 (type: string)
-                     |     sort order:+
-                     |     Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                     |     Select Operator [SEL_2]
-                     |        outputColumnNames:["_col0"]
-                     |        Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                     |        Filter Operator [FIL_24]
-                     |           predicate:value is not null (type: boolean)
-                     |           Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                     |           TableScan [TS_0]
-                     |              alias:z
-                     |              Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                     |<-Map 4 [SIMPLE_EDGE]
-                        Reduce Output Operator [RS_10]
-                           key expressions:_col1 (type: string)
-                           Map-reduce partition columns:_col1 (type: string)
-                           sort order:+
-                           Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-                           value expressions:_col0 (type: string)
-                           Select Operator [SEL_4]
-                              outputColumnNames:["_col0","_col1"]
-                              Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-                              Filter Operator [FIL_25]
-                                 predicate:(value is not null and key is not null) (type: boolean)
-                                 Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-                                 TableScan [TS_3]
-                                    alias:x
-                                    Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
+  Fetch Operator
+    limit:-1
+    Stage-1
+      Reducer 3 llap
+      File Output Operator [FS_16]
+        Select Operator [SEL_15] (rows=141 width=268)
+          Output:["_col0","_col1","_col2"]
+          Merge Join Operator [MERGEJOIN_26] (rows=141 width=268)
+            Conds:RS_12._col3=RS_13._col0(Inner),Output:["_col0","_col3","_col6"]
+          <-Map 5 [SIMPLE_EDGE] llap
+            SHUFFLE [RS_13]
+              PartitionCols:_col0
+              Select Operator [SEL_8] (rows=500 width=178)
+                Output:["_col0","_col1"]
+                Filter Operator [FIL_24] (rows=500 width=178)
+                  predicate:key is not null
+                  TableScan [TS_6] (rows=500 width=178)
+                    default@src,y,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
+          <-Reducer 2 [SIMPLE_EDGE] llap
+            SHUFFLE [RS_12]
+              PartitionCols:_col3
+              Merge Join Operator [MERGEJOIN_25] (rows=58 width=177)
+                Conds:RS_9._col0=RS_10._col1(Inner),Output:["_col0","_col3"]
+              <-Map 1 [SIMPLE_EDGE] llap
+                SHUFFLE [RS_9]
+                  PartitionCols:_col0
+                  Select Operator [SEL_2] (rows=500 width=369)
+                    Output:["_col0"]
+                    Filter Operator [FIL_22] (rows=500 width=91)
+                      predicate:value is not null
+                      TableScan [TS_0] (rows=500 width=91)
+                        default@srcpart,z,Tbl:COMPLETE,Col:COMPLETE,Output:["value"]
+              <-Map 4 [SIMPLE_EDGE] llap
+                SHUFFLE [RS_10]
+                  PartitionCols:_col1
+                  Select Operator [SEL_5] (rows=25 width=175)
+                    Output:["_col0","_col1"]
+                    Filter Operator [FIL_23] (rows=25 width=175)
+                      predicate:(key is not null and value is not null)
+                      TableScan [TS_3] (rows=25 width=175)
+                        default@src1,x,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
 
 PREHOOK: query: EXPLAIN
 select 
@@ -331,252 +297,132 @@ Reducer 8 <- Map 12 (SIMPLE_EDGE), Map 7 (SIMPLE_EDGE)
 Reducer 9 <- Map 13 (SIMPLE_EDGE), Reducer 8 (SIMPLE_EDGE)
 
 Stage-0
-   Fetch Operator
-      limit:100
-      Stage-1
-         Reducer 5
-         File Output Operator [FS_68]
-            compressed:false
-            Statistics:Num rows: 100 Data size: 1000 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"}
-            Limit [LIM_67]
-               Number of rows:100
-               Statistics:Num rows: 100 Data size: 1000 Basic stats: COMPLETE Column stats: NONE
-               Select Operator [SEL_66]
-               |  outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5"]
-               |  Statistics:Num rows: 402 Data size: 4276 Basic stats: COMPLETE Column stats: NONE
-               |<-Reducer 4 [SIMPLE_EDGE]
-                  Reduce Output Operator [RS_65]
-                     key expressions:_col0 (type: string), _col1 (type: string), _col2 (type: string)
-                     sort order:+++
-                     Statistics:Num rows: 402 Data size: 4276 Basic stats: COMPLETE Column stats: NONE
-                     value expressions:_col3 (type: bigint), _col4 (type: bigint), _col5 (type: bigint)
-                     Select Operator [SEL_64]
-                        outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5"]
-                        Statistics:Num rows: 402 Data size: 4276 Basic stats: COMPLETE Column stats: NONE
-                        Group By Operator [GBY_63]
-                        |  aggregations:["count(VALUE._col0)","count(VALUE._col1)","count(VALUE._col2)"]
-                        |  keys:KEY._col0 (type: string), KEY._col1 (type: string), KEY._col2 (type: string)
-                        |  outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5"]
-                        |  Statistics:Num rows: 402 Data size: 4276 Basic stats: COMPLETE Column stats: NONE
-                        |<-Reducer 3 [SIMPLE_EDGE]
-                           Reduce Output Operator [RS_62]
-                              key expressions:_col0 (type: string), _col1 (type: string), _col2 (type: string)
-                              Map-reduce partition columns:_col0 (type: string), _col1 (type: string), _col2 (type: string)
-                              sort order:+++
-                              Statistics:Num rows: 804 Data size: 8552 Basic stats: COMPLETE Column stats: NONE
-                              value expressions:_col3 (type: bigint), _col4 (type: bigint), _col5 (type: bigint)
-                              Group By Operator [GBY_61]
-                                 aggregations:["count(_col13)","count(_col21)","count(_col3)"]
-                                 keys:_col2 (type: string), _col12 (type: string), _col20 (type: string)
-                                 outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5"]
-                                 Statistics:Num rows: 804 Data size: 8552 Basic stats: COMPLETE Column stats: NONE
-                                 Select Operator [SEL_60]
-                                    outputColumnNames:["_col2","_col12","_col20","_col13","_col21","_col3"]
-                                    Statistics:Num rows: 804 Data size: 8552 Basic stats: COMPLETE Column stats: NONE
-                                    Merge Join Operator [MERGEJOIN_110]
-                                    |  condition map:[{"":"Inner Join 0 to 1"}]
-                                    |  keys:{"0":"_col1 (type: string), _col3 (type: string)","1":"_col15 (type: string), _col17 (type: string)"}
-                                    |  outputColumnNames:["_col2","_col3","_col12","_col13","_col20","_col21"]
-                                    |  Statistics:Num rows: 804 Data size: 8552 Basic stats: COMPLETE Column stats: NONE
-                                    |<-Reducer 11 [SIMPLE_EDGE]
-                                    |  Reduce Output Operator [RS_58]
-                                    |     key expressions:_col15 (type: string), _col17 (type: string)
-                                    |     Map-reduce partition columns:_col15 (type: string), _col17 (type: string)
-                                    |     sort order:++
-                                    |     Statistics:Num rows: 731 Data size: 7775 Basic stats: COMPLETE Column stats: NONE
-                                    |     value expressions:_col6 (type: string), _col7 (type: string), _col14 (type: string)
-                                    |     Select Operator [SEL_49]
-                                    |        outputColumnNames:["_col14","_col15","_col17","_col6","_col7"]
-                                    |        Statistics:Num rows: 731 Data size: 7775 Basic stats: COMPLETE Column stats: NONE
-                                    |        Merge Join Operator [MERGEJOIN_109]
-                                    |        |  condition map:[{"":"Inner Join 0 to 1"}]
-                                    |        |  keys:{"0":"_col4 (type: string), _col6 (type: string)","1":"_col2 (type: string), _col4 (type: string)"}
-                                    |        |  outputColumnNames:["_col2","_col3","_col14","_col15","_col17"]
-                                    |        |  Statistics:Num rows: 731 Data size: 7775 Basic stats: COMPLETE Column stats: NONE
-                                    |        |<-Reducer 10 [SIMPLE_EDGE]
-                                    |        |  Reduce Output Operator [RS_45]
-                                    |        |     key expressions:_col4 (type: string), _col6 (type: string)
-                                    |        |     Map-reduce partition columns:_col4 (type: string), _col6 (type: string)
-                                    |        |     sort order:++
-                                    |        |     Statistics:Num rows: 665 Data size: 7069 Basic stats: COMPLETE Column stats: NONE
-                                    |        |     value expressions:_col2 (type: string), _col3 (type: string)
-                                    |        |     Merge Join Operator [MERGEJOIN_107]
-                                    |        |     |  condition map:[{"":"Inner Join 0 to 1"}]
-                                    |        |     |  keys:{"0":"_col3 (type: string)","1":"_col1 (type: string)"}
-                                    |        |     |  outputColumnNames:["_col2","_col3","_col4","_col6"]
-                                    |        |     |  Statistics:Num rows: 665 Data size: 7069 Basic stats: COMPLETE Column stats: NONE
-                                    |        |     |<-Map 14 [SIMPLE_EDGE]
-                                    |        |     |  Reduce Output Operator [RS_42]
-                                    |        |     |     key expressions:_col1 (type: string)
-                                    |        |     |     Map-reduce partition columns:_col1 (type: string)
-                                    |        |     |     sort order:+
-                                    |        |     |     Statistics:Num rows: 6 Data size: 45 Basic stats: COMPLETE Column stats: NONE
-                                    |        |     |     Select Operator [SEL_16]
-                                    |        |     |        outputColumnNames:["_col1"]
-                                    |        |     |        Statistics:Num rows: 6 Data size: 45 Basic stats: COMPLETE Column stats: NONE
-                                    |        |     |        Filter Operator [FIL_101]
-                                    |        |     |           predicate:((key = 'src1key') and value is not null) (type: boolean)
-                                    |        |     |           Statistics:Num rows: 6 Data size: 45 Basic stats: COMPLETE Column stats: NONE
-                                    |        |     |           TableScan [TS_14]
-                                    |        |     |              alias:src1
-                                    |        |     |              Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
-                                    |        |     |<-Reducer 9 [SIMPLE_EDGE]
-                                    |        |        Reduce Output Operator [RS_40]
-                                    |        |           key expressions:_col3 (type: string)
-                                    |        |           Map-reduce partition columns:_col3 (type: string)
-                                    |        |           sort order:+
-                                    |        |           Statistics:Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
-                                    |        |           value expressions:_col2 (type: string), _col4 (type: string), _col6 (type: string)
-                                    |        |           Merge Join Operator [MERGEJOIN_106]
-                                    |        |           |  condition map:[{"":"Inner Join 0 to 1"}]
-                                    |        |           |  keys:{"0":"_col2 (type: string)","1":"_col0 (type: string)"}
-                                    |        |           |  outputColumnNames:["_col2","_col3","_col4","_col6"]
-                                    |        |           |  Statistics:Num rows: 605 Data size: 6427 Basic stats: COMPLETE Column stats: NONE
-                                    |        |           |<-Map 13 [SIMPLE_EDGE]
-                                    |        |           |  Reduce Output Operator [RS_37]
-                                    |        |           |     key expressions:_col0 (type: string)
-                                    |        |           |     Map-reduce partition columns:_col0 (type: string)
-                                    |        |           |     sort order:+
-                                    |        |           |     Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                    |        |           |     Select Operator [SEL_13]
-                                    |        |           |        outputColumnNames:["_col0"]
-                                    |        |           |        Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                    |        |           |        Filter Operator [FIL_100]
-                                    |        |           |           predicate:((value = 'd1value') and key is not null) (type: boolean)
-                                    |        |           |           Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                    |        |           |           TableScan [TS_11]
-                                    |        |           |              alias:d1
-                                    |        |           |              Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                                    |        |           |<-Reducer 8 [SIMPLE_EDGE]
-                                    |        |              Reduce Output Operator [RS_35]
-                                    |        |                 key expressions:_col2 (type: string)
-                                    |        |                 Map-reduce partition columns:_col2 (type: string)
-                                    |        |                 sort order:+
-                                    |        |                 Statistics:Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                 value expressions:_col3 (type: string), _col4 (type: string), _col6 (type: string)
-                                    |        |                 Merge Join Operator [MERGEJOIN_105]
-                                    |        |                 |  condition map:[{"":"Inner Join 0 to 1"}]
-                                    |        |                 |  keys:{"0":"_col1 (type: string)","1":"_col3 (type: string)"}
-                                    |        |                 |  outputColumnNames:["_col2","_col3","_col4","_col6"]
-                                    |        |                 |  Statistics:Num rows: 550 Data size: 5843 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                 |<-Map 12 [SIMPLE_EDGE]
-                                    |        |                 |  Reduce Output Operator [RS_32]
-                                    |        |                 |     key expressions:_col3 (type: string)
-                                    |        |                 |     Map-reduce partition columns:_col3 (type: string)
-                                    |        |                 |     sort order:+
-                                    |        |                 |     Statistics:Num rows: 2 Data size: 69 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                 |     value expressions:_col0 (type: string), _col1 (type: string), _col2 (type: string), _col4 (type: string)
-                                    |        |                 |     Select Operator [SEL_10]
-                                    |        |                 |        outputColumnNames:["_col0","_col1","_col2","_col3","_col4"]
-                                    |        |                 |        Statistics:Num rows: 2 Data size: 69 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                 |        Filter Operator [FIL_99]
-                                    |        |                 |           predicate:((((((v3 = 'ssv3') and v2 is not null) and k1 is not null) and v1 is not null) and k2 is not null) and k3 is not null) (type: boolean)
-                                    |        |                 |           Statistics:Num rows: 2 Data size: 69 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                 |           TableScan [TS_8]
-                                    |        |                 |              alias:ss
-                                    |        |                 |              Statistics:Num rows: 85 Data size: 2945 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                 |<-Map 7 [SIMPLE_EDGE]
-                                    |        |                    Reduce Output Operator [RS_30]
-                                    |        |                       key expressions:_col1 (type: string)
-                                    |        |                       Map-reduce partition columns:_col1 (type: string)
-                                    |        |                       sort order:+
-                                    |        |                       Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                       Select Operator [SEL_7]
-                                    |        |                          outputColumnNames:["_col1"]
-                                    |        |                          Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                          Filter Operator [FIL_98]
-                                    |        |                             predicate:((key = 'srcpartkey') and value is not null) (type: boolean)
-                                    |        |                             Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                                    |        |                             TableScan [TS_5]
-                                    |        |                                alias:srcpart
-                                    |        |                                Statistics:Num rows: 2000 Data size: 21248 Basic stats: COMPLETE Column stats: NONE
-                                    |        |<-Reducer 16 [SIMPLE_EDGE]
-                                    |           Reduce Output Operator [RS_47]
-                                    |              key expressions:_col2 (type: string), _col4 (type: string)
-                                    |              Map-reduce partition columns:_col2 (type: string), _col4 (type: string)
-                                    |              sort order:++
-                                    |              Statistics:Num rows: 137 Data size: 1460 Basic stats: COMPLETE Column stats: NONE
-                                    |              value expressions:_col3 (type: string), _col5 (type: string)
-                                    |              Merge Join Operator [MERGEJOIN_108]
-                                    |              |  condition map:[{"":"Inner Join 0 to 1"}]
-                                    |              |  keys:{"0":"_col0 (type: string)","1":"_col0 (type: string)"}
-                                    |              |  outputColumnNames:["_col2","_col3","_col4","_col5"]
-                                    |              |  Statistics:Num rows: 137 Data size: 1460 Basic stats: COMPLETE Column stats: NONE
-                                    |              |<-Map 15 [SIMPLE_EDGE]
-                                    |              |  Reduce Output Operator [RS_24]
-                                    |              |     key expressions:_col0 (type: string)
-                                    |              |     Map-reduce partition columns:_col0 (type: string)
-                                    |              |     sort order:+
-                                    |              |     Statistics:Num rows: 2 Data size: 69 Basic stats: COMPLETE Column stats: NONE
-                                    |              |     value expressions:_col2 (type: string), _col3 (type: string), _col4 (type: string), _col5 (type: string)
-                                    |              |     Select Operator [SEL_19]
-                                    |              |        outputColumnNames:["_col0","_col2","_col3","_col4","_col5"]
-                                    |              |        Statistics:Num rows: 2 Data size: 69 Basic stats: COMPLETE Column stats: NONE
-                                    |              |        Filter Operator [FIL_102]
-                                    |              |           predicate:((((((v1 = 'srv1') and k1 is not null) and k2 is not null) and k3 is not null) and v2 is not null) and v3 is not null) (type: boolean)
-                                    |              |           Statistics:Num rows: 2 Data size: 69 Basic stats: COMPLETE Column stats: NONE
-                                    |              |           TableScan [TS_17]
-                                    |              |              alias:sr
-                                    |              |              Statistics:Num rows: 85 Data size: 2945 Basic stats: COMPLETE Column stats: NONE
-                                    |              |<-Map 17 [SIMPLE_EDGE]
-                                    |                 Reduce Output Operator [RS_26]
-                                    |                    key expressions:_col0 (type: string)
-                                    |                    Map-reduce partition columns:_col0 (type: string)
-                                    |                    sort order:+
-                                    |                    Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                    |                    Select Operator [SEL_22]
-                                    |                       outputColumnNames:["_col0"]
-                                    |                       Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                    |                       Filter Operator [FIL_103]
-                                    |                          predicate:((value) IN ('2000Q1', '2000Q2', '2000Q3') and key is not null) (type: boolean)
-                                    |                          Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                    |                          TableScan [TS_20]
-                                    |                             alias:d1
-                                    |                             Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                                    |<-Reducer 2 [SIMPLE_EDGE]
-                                       Reduce Output Operator [RS_56]
-                                          key expressions:_col1 (type: string), _col3 (type: string)
-                                          Map-reduce partition columns:_col1 (type: string), _col3 (type: string)
-                                          sort order:++
-                                          Statistics:Num rows: 137 Data size: 1460 Basic stats: COMPLETE Column stats: NONE
-                                          value expressions:_col2 (type: string)
-                                          Merge Join Operator [MERGEJOIN_104]
-                                          |  condition map:[{"":"Inner Join 0 to 1"}]
-                                          |  keys:{"0":"_col0 (type: string)","1":"_col0 (type: string)"}
-                                          |  outputColumnNames:["_col1","_col2","_col3"]
-                                          |  Statistics:Num rows: 137 Data size: 1460 Basic stats: COMPLETE Column stats: NONE
-                                          |<-Map 1 [SIMPLE_EDGE]
-                                          |  Reduce Output Operator [RS_51]
-                                          |     key expressions:_col0 (type: string)
-                                          |     Map-reduce partition columns:_col0 (type: string)
-                                          |     sort order:+
-                                          |     Statistics:Num rows: 22 Data size: 762 Basic stats: COMPLETE Column stats: NONE
-                                          |     value expressions:_col1 (type: string), _col2 (type: string), _col3 (type: string)
-                                          |     Select Operator [SEL_1]
-                                          |        outputColumnNames:["_col0","_col1","_col2","_col3"]
-                                          |        Statistics:Num rows: 22 Data size: 762 Basic stats: COMPLETE Column stats: NONE
-                                          |        Filter Operator [FIL_96]
-                                          |           predicate:((k1 is not null and v2 is not null) and v3 is not null) (type: boolean)
-                                          |           Statistics:Num rows: 22 Data size: 762 Basic stats: COMPLETE Column stats: NONE
-                                          |           TableScan [TS_0]
-                                          |              alias:cs
-                                          |              Statistics:Num rows: 170 Data size: 5890 Basic stats: COMPLETE Column stats: NONE
-                                          |<-Map 6 [SIMPLE_EDGE]
-                                             Reduce Output Operator [RS_53]
-                                                key expressions:_col0 (type: string)
-                                                Map-reduce partition columns:_col0 (type: string)
-                                                sort order:+
-                                                Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                                Select Operator [SEL_4]
-                                                   outputColumnNames:["_col0"]
-                                                   Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                                   Filter Operator [FIL_97]
-                                                      predicate:((value) IN ('2000Q1', '2000Q2', '2000Q3') and key is not null) (type: boolean)
-                                                      Statistics:Num rows: 125 Data size: 1328 Basic stats: COMPLETE Column stats: NONE
-                                                      TableScan [TS_2]
-                                                         alias:d1
-                                                         Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
+  Fetch Operator
+    limit:100
+    Stage-1
+      Reducer 5 llap
+      File Output Operator [FS_55]
+        Limit [LIM_54] (rows=24 width=285)
+          Number of rows:100
+          Select Operator [SEL_53] (rows=24 width=285)
+            Output:["_col0","_col1","_col2","_col3","_col4","_col5"]
+          <-Reducer 4 [SIMPLE_EDGE] llap
+            SHUFFLE [RS_52]
+              Group By Operator [GBY_50] (rows=24 width=285)
+                Output:["_col0","_col1","_col2","_col3","_col4","_col5"],aggregations:["count(VALUE._col0)","count(VALUE._col1)","count(VALUE._col2)"],keys:KEY._col0, KEY._col1, KEY._col2
+              <-Reducer 3 [SIMPLE_EDGE] llap
+                SHUFFLE [RS_49]
+                  PartitionCols:_col0, _col1, _col2
+                  Group By Operator [GBY_48] (rows=24 width=285)
+                    Output:["_col0","_col1","_col2","_col3","_col4","_col5"],aggregations:["count(_col13)","count(_col21)","count(_col3)"],keys:_col12, _col20, _col2
+                    Select Operator [SEL_47] (rows=650 width=534)
+                      Output:["_col12","_col20","_col2","_col13","_col21","_col3"]
+                      Merge Join Operator [MERGEJOIN_97] (rows=650 width=534)
+                        Conds:RS_44._col1, _col3=RS_45._col15, _col17(Inner),Output:["_col2","_col3","_col12","_col13","_col20","_col21"]
+                      <-Reducer 11 [SIMPLE_EDGE] llap
+                        SHUFFLE [RS_45]
+                          PartitionCols:_col15, _col17
+                          Select Operator [SEL_40] (rows=190 width=447)
+                            Output:["_col14","_col15","_col17","_col6","_col7"]
+                            Merge Join Operator [MERGEJOIN_96] (rows=190 width=447)
+                              Conds:RS_37._col6, _col4=RS_38._col4, _col2(Inner),Output:["_col2","_col3","_col14","_col15","_col17"]
+                            <-Reducer 10 [SIMPLE_EDGE] llap
+                              SHUFFLE [RS_37]
+                                PartitionCols:_col6, _col4
+                                Merge Join Operator [MERGEJOIN_94] (rows=40 width=352)
+                                  Conds:RS_34._col3=RS_35._col1(Inner),Output:["_col2","_col3","_col4","_col6"]
+                                <-Map 14 [SIMPLE_EDGE] llap
+                                  SHUFFLE [RS_35]
+                                    PartitionCols:_col1
+                                    Select Operator [SEL_17] (rows=2 width=180)
+                                      Output:["_col1"]
+                                      Filter Operator [FIL_88] (rows=2 width=175)
+                                        predicate:((key = 'src1key') and value is not null)
+                                        TableScan [TS_15] (rows=25 width=175)
+                                          default@src1,src1,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
+                                <-Reducer 9 [SIMPLE_EDGE] llap
+                                  SHUFFLE [RS_34]
+                                    PartitionCols:_col3
+                                    Merge Join Operator [MERGEJOIN_93] (rows=40 width=352)
+                                      Conds:RS_31._col2=RS_32._col0(Inner),Output:["_col2","_col3","_col4","_col6"]
+                                    <-Map 13 [SIMPLE_EDGE] llap
+                                      SHUFFLE [RS_32]
+                                        PartitionCols:_col0
+                                        Select Operator [SEL_14] (rows=2 width=178)
+                                          Output:["_col0"]
+                                          Filter Operator [FIL_87] (rows=2 width=178)
+                                            predicate:((value = 'd1value') and key is not null)
+                                            TableScan [TS_12] (rows=500 width=178)
+                                              default@src,d1,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
+                                    <-Reducer 8 [SIMPLE_EDGE] llap
+                                      SHUFFLE [RS_31]
+                                        PartitionCols:_col2
+                                        Merge Join Operator [MERGEJOIN_92] (rows=40 width=352)
+                                          Conds:RS_28._col1=RS_29._col3(Inner),Output:["_col2","_col3","_col4","_col6"]
+                                        <-Map 12 [SIMPLE_EDGE] llap
+                                          SHUFFLE [RS_29]
+                                            PartitionCols:_col3
+                                            Select Operator [SEL_11] (rows=8 width=531)
+                                              Output:["_col0","_col1","_col2","_col3","_col4"]
+                                              Filter Operator [FIL_86] (rows=8 width=534)
+                                                predicate:((v3 = 'ssv3') and k2 is not null and k3 is not null and k1 is not null and v1 is not null and v2 is not null)
+                                                TableScan [TS_9] (rows=85 width=534)
+                                                  default@ss,ss,Tbl:COMPLETE,Col:COMPLETE,Output:["k1","v1","k2","v2","k3","v3"]
+                                        <-Map 7 [SIMPLE_EDGE] llap
+                                          SHUFFLE [RS_28]
+                                            PartitionCols:_col1
+                                            Select Operator [SEL_8] (rows=10 width=185)
+                                              Output:["_col1"]
+                                              Filter Operator [FIL_85] (rows=10 width=178)
+                                                predicate:((key = 'srcpartkey') and value is not null)
+                                                TableScan [TS_6] (rows=2000 width=178)
+                                                  default@srcpart,srcpart,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
+                            <-Reducer 16 [SIMPLE_EDGE] llap
+                              SHUFFLE [RS_38]
+                                PartitionCols:_col4, _col2
+                                Merge Join Operator [MERGEJOIN_95] (rows=19 width=356)
+                                  Conds:RS_24._col0=RS_25._col0(Inner),Output:["_col2","_col3","_col4","_col5"]
+                                <-Map 15 [SIMPLE_EDGE] llap
+                                  SHUFFLE [RS_24]
+                                    PartitionCols:_col0
+                                    Select Operator [SEL_20] (rows=8 width=531)
+                                      Output:["_col0","_col2","_col3","_col4","_col5"]
+                                      Filter Operator [FIL_89] (rows=8 width=534)
+                                        predicate:((v1 = 'srv1') and k2 is not null and k3 is not null and v2 is not null and v3 is not null and k1 is not null)
+                                        TableScan [TS_18] (rows=85 width=534)
+                                          default@sr,sr,Tbl:COMPLETE,Col:COMPLETE,Output:["k1","v1","k2","v2","k3","v3"]
+                                <-Map 17 [SIMPLE_EDGE] llap
+                                  SHUFFLE [RS_25]
+                                    PartitionCols:_col0
+                                    Select Operator [SEL_23] (rows=500 width=178)
+                                      Output:["_col0"]
+                                      Filter Operator [FIL_90] (rows=500 width=178)
+                                        predicate:((value) IN ('2000Q1', '2000Q2', '2000Q3') and key is not null)
+                                        TableScan [TS_21] (rows=500 width=178)
+                                          default@src,d2,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
+                      <-Reducer 2 [SIMPLE_EDGE] llap
+                        SHUFFLE [RS_44]
+                          PartitionCols:_col1, _col3
+                          Merge Join Operator [MERGEJOIN_91] (rows=414 width=269)
+                            Conds:RS_41._col0=RS_42._col0(Inner),Output:["_col1","_col2","_col3"]
+                          <-Map 1 [SIMPLE_EDGE] llap
+                            SHUFFLE [RS_41]
+                              PartitionCols:_col0
+                              Select Operator [SEL_2] (rows=170 width=356)
+                                Output:["_col0","_col1","_col2","_col3"]
+                                Filter Operator [FIL_83] (rows=170 width=356)
+                                  predicate:(v2 is not null and v3 is not null and k1 is not null)
+                                  TableScan [TS_0] (rows=170 width=356)
+                                    default@cs,cs,Tbl:COMPLETE,Col:COMPLETE,Output:["k1","v2","k3","v3"]
+                          <-Map 6 [SIMPLE_EDGE] llap
+                            SHUFFLE [RS_42]
+                              PartitionCols:_col0
+                              Select Operator [SEL_5] (rows=500 width=178)
+                                Output:["_col0"]
+                                Filter Operator [FIL_84] (rows=500 width=178)
+                                  predicate:((value) IN ('2000Q1', '2000Q2', '2000Q3') and key is not null)
+                                  TableScan [TS_3] (rows=500 width=178)
+                                    default@src,d3,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
 
 PREHOOK: query: explain
 SELECT x.key, z.value, y.value
@@ -612,245 +458,138 @@ Reducer 5 <- Map 10 (SIMPLE_EDGE), Reducer 4 (SIMPLE_EDGE), Union 6 (CONTAINS)
 Reducer 7 <- Union 6 (SIMPLE_EDGE)
 
 Stage-0
-   Fetch Operator
-      limit:-1
-      Stage-1
-         Reducer 7
-         File Output Operator [FS_59]
-            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"}
-            Group By Operator [GBY_57]
-            |  keys:KEY._col0 (type: string), KEY._col1 (type: string)
-            |  outputColumnNames:["_col0","_col1"]
-            |  Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-            |<-Union 6 [SIMPLE_EDGE]
-               |<-Reducer 15 [CONTAINS]
-               |  Reduce Output Operator [RS_56]
-               |     key expressions:_col0 (type: string), _col1 (type: string)
-               |     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |     sort order:++
-               |     Statistics:Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
-               |     Group By Operator [GBY_55]
-               |        keys:_col0 (type: string), _col1 (type: string)
-               |        outputColumnNames:["_col0","_col1"]
-               |        Statistics:Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
-               |        Select Operator [SEL_51]
-               |           outputColumnNames:["_col0","_col1"]
-               |           Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-               |           Merge Join Operator [MERGEJOIN_85]
-               |           |  condition map:[{"":"Inner Join 0 to 1"}]
-               |           |  keys:{"0":"_col2 (type: string)","1":"_col0 (type: string)"}
-               |           |  outputColumnNames:["_col1","_col2"]
-               |           |  Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-               |           |<-Map 18 [SIMPLE_EDGE]
-               |           |  Reduce Output Operator [RS_49]
-               |           |     key expressions:_col0 (type: string)
-               |           |     Map-reduce partition columns:_col0 (type: string)
-               |           |     sort order:+
-               |           |     Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |           |     Select Operator [SEL_40]
-               |           |        outputColumnNames:["_col0"]
-               |           |        Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |           |        Filter Operator [FIL_81]
-               |           |           predicate:key is not null (type: boolean)
-               |           |           Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |           |           TableScan [TS_39]
-               |           |              alias:y
-               |           |              Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-               |           |<-Reducer 14 [SIMPLE_EDGE]
-               |              Reduce Output Operator [RS_47]
-               |                 key expressions:_col2 (type: string)
-               |                 Map-reduce partition columns:_col2 (type: string)
-               |                 sort order:+
-               |                 Statistics:Num rows: 144 Data size: 1509 Basic stats: COMPLETE Column stats: NONE
-               |                 value expressions:_col1 (type: string)
-               |                 Merge Join Operator [MERGEJOIN_84]
-               |                 |  condition map:[{"":"Inner Join 0 to 1"}]
-               |                 |  keys:{"0":"_col1 (type: string)","1":"_col1 (type: string)"}
-               |                 |  outputColumnNames:["_col1","_col2"]
-               |                 |  Statistics:Num rows: 144 Data size: 1509 Basic stats: COMPLETE Column stats: NONE
-               |                 |<-Map 17 [SIMPLE_EDGE]
-               |                 |  Reduce Output Operator [RS_44]
-               |                 |     key expressions:_col1 (type: string)
-               |                 |     Map-reduce partition columns:_col1 (type: string)
-               |                 |     sort order:+
-               |                 |     Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-               |                 |     value expressions:_col0 (type: string)
-               |                 |     Select Operator [SEL_38]
-               |                 |        outputColumnNames:["_col0","_col1"]
-               |                 |        Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-               |                 |        Filter Operator [FIL_80]
-               |                 |           predicate:(value is not null and key is not null) (type: boolean)
-               |                 |           Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-               |                 |           TableScan [TS_37]
-               |                 |              alias:x
-               |                 |              Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
-               |                 |<-Reducer 13 [SIMPLE_EDGE]
-               |                    Reduce Output Operator [RS_42]
-               |                       key expressions:_col1 (type: string)
-               |                       Map-reduce partition columns:_col1 (type: string)
-               |                       sort order:+
-               |                       Statistics:Num rows: 131 Data size: 1372 Basic stats: COMPLETE Column stats: NONE
-               |                       Select Operator [SEL_36]
-               |                          outputColumnNames:["_col1"]
-               |                          Statistics:Num rows: 131 Data size: 1372 Basic stats: COMPLETE Column stats: NONE
-               |                          Group By Operator [GBY_35]
-               |                          |  keys:KEY._col0 (type: string), KEY._col1 (type: string)
-               |                          |  outputColumnNames:["_col0","_col1"]
-               |                          |  Statistics:Num rows: 131 Data size: 1372 Basic stats: COMPLETE Column stats: NONE
-               |                          |<-Union 12 [SIMPLE_EDGE]
-               |                             |<-Map 11 [CONTAINS]
-               |                             |  Reduce Output Operator [RS_34]
-               |                             |     key expressions:_col0 (type: string), _col1 (type: string)
-               |                             |     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                             |     sort order:++
-               |                             |     Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                             |     Group By Operator [GBY_33]
-               |                             |        keys:_col0 (type: string), _col1 (type: string)
-               |                             |        outputColumnNames:["_col0","_col1"]
-               |                             |        Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                             |        Select Operator [SEL_27]
-               |                             |           outputColumnNames:["_col0","_col1"]
-               |                             |           Statistics:Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
-               |                             |           Filter Operator [FIL_78]
-               |                             |              predicate:value is not null (type: boolean)
-               |                             |              Statistics:Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
-               |                             |              TableScan [TS_26]
-               |                             |                 alias:x
-               |                             |                 Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
-               |                             |<-Map 16 [CONTAINS]
-               |                                Reduce Output Operator [RS_34]
-               |                                   key expressions:_col0 (type: string), _col1 (type: string)
-               |                                   Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                                   sort order:++
-               |                                   Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                                   Group By Operator [GBY_33]
-               |                                      keys:_col0 (type: string), _col1 (type: string)
-               |                                      outputColumnNames:["_col0","_col1"]
-               |                                      Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                                      Select Operator [SEL_29]
-               |                                         outputColumnNames:["_col0","_col1"]
-               |                                         Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |                                         Filter Operator [FIL_79]
-               |                                            predicate:value is not null (type: boolean)
-               |                                            Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |                                            TableScan [TS_28]
-               |                                               alias:y
-               |                                               Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-               |<-Reducer 5 [CONTAINS]
-                  Reduce Output Operator [RS_56]
-                     key expressions:_col0 (type: string), _col1 (type: string)
-                     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-                     sort order:++
-                     Statistics:Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
-                     Group By Operator [GBY_55]
-                        keys:_col0 (type: string), _col1 (type: string)
-                        outputColumnNames:["_col0","_col1"]
-                        Statistics:Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
-                        Select Operator [SEL_25]
-                           outputColumnNames:["_col0","_col1"]
-                           Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                           Merge Join Operator [MERGEJOIN_83]
-                           |  condition map:[{"":"Inner Join 0 to 1"}]
-                           |  keys:{"0":"_col2 (type: string)","1":"_col0 (type: string)"}
-                           |  outputColumnNames:["_col1","_col2"]
-                           |  Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-                           |<-Map 10 [SIMPLE_EDGE]
-                           |  Reduce Output Operator [RS_23]
-                           |     key expressions:_col0 (type: string)
-                           |     Map-reduce partition columns:_col0 (type: string)
-                           |     sort order:+
-                           |     Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                           |     Select Operator [SEL_14]
-                           |        outputColumnNames:["_col0"]
-                           |        Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                           |        Filter Operator [FIL_77]
-                           |           predicate:key is not null (type: boolean)
-                           |           Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                           |           TableScan [TS_13]
-                           |              alias:y
-                           |              Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-                           |<-Reducer 4 [SIMPLE_EDGE]
-                              Reduce Output Operator [RS_21]
-                                 key expressions:_col2 (type: string)
-                                 Map-reduce partition columns:_col2 (type: string)
-                                 sort order:+
-                                 Statistics:Num rows: 144 Data size: 1509 Basic stats: COMPLETE Column stats: NONE
-                                 value expressions:_col1 (type: string)
-                                 Merge Join Operator [MERGEJOIN_82]
-                                 |  condition map:[{"":"Inner Join 0 to 1"}]
-                                 |  keys:{"0":"_col1 (type: string)","1":"_col1 (type: string)"}
-                                 |  outputColumnNames:["_col1","_col2"]
-                                 |  Statistics:Num rows: 144 Data size: 1509 Basic stats: COMPLETE Column stats: NONE
-                                 |<-Map 9 [SIMPLE_EDGE]
-                                 |  Reduce Output Operator [RS_18]
-                                 |     key expressions:_col1 (type: string)
-                                 |     Map-reduce partition columns:_col1 (type: string)
-                                 |     sort order:+
-                                 |     Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-                                 |     value expressions:_col0 (type: string)
-                                 |     Select Operator [SEL_12]
-                                 |        outputColumnNames:["_col0","_col1"]
-                                 |        Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-                                 |        Filter Operator [FIL_76]
-                                 |           predicate:(value is not null and key is not null) (type: boolean)
-                                 |           Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-                                 |           TableScan [TS_11]
-                                 |              alias:x
-                                 |              Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
-                                 |<-Reducer 3 [SIMPLE_EDGE]
-                                    Reduce Output Operator [RS_16]
-                                       key expressions:_col1 (type: string)
-                                       Map-reduce partition columns:_col1 (type: string)
-                                       sort order:+
-                                       Statistics:Num rows: 131 Data size: 1372 Basic stats: COMPLETE Column stats: NONE
-                                       Select Operator [SEL_10]
-                                          outputColumnNames:["_col1"]
-                                          Statistics:Num rows: 131 Data size: 1372 Basic stats: COMPLETE Column stats: NONE
-                                          Group By Operator [GBY_9]
-                                          |  keys:KEY._col0 (type: string), KEY._col1 (type: string)
-                                          |  outputColumnNames:["_col0","_col1"]
-                                          |  Statistics:Num rows: 131 Data size: 1372 Basic stats: COMPLETE Column stats: NONE
-                                          |<-Union 2 [SIMPLE_EDGE]
-                                             |<-Map 1 [CONTAINS]
-                                             |  Reduce Output Operator [RS_8]
-                                             |     key expressions:_col0 (type: string), _col1 (type: string)
-                                             |     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-                                             |     sort order:++
-                                             |     Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-                                             |     Group By Operator [GBY_7]
-                                             |        keys:_col0 (type: string), _col1 (type: string)
-                                             |        outputColumnNames:["_col0","_col1"]
-                                             |        Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-                                             |        Select Operator [SEL_1]
-                                             |           outputColumnNames:["_col0","_col1"]
-                                             |           Statistics:Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
-                                             |           Filter Operator [FIL_74]
-                                             |              predicate:value is not null (type: boolean)
-                                             |              Statistics:Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
-                                             |              TableScan [TS_0]
-                                             |                 alias:x
-                                             |                 Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
-                                             |<-Map 8 [CONTAINS]
-                                                Reduce Output Operator [RS_8]
-                                                   key expressions:_col0 (type: string), _col1 (type: string)
-                                                   Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-                                                   sort order:++
-                                                   Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-                                                   Group By Operator [GBY_7]
-                                                      keys:_col0 (type: string), _col1 (type: string)
-                                                      outputColumnNames:["_col0","_col1"]
-                                                      Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-                                                      Select Operator [SEL_3]
-                                                         outputColumnNames:["_col0","_col1"]
-                                                         Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                                                         Filter Operator [FIL_75]
-                                                            predicate:value is not null (type: boolean)
-                                                            Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-                                                            TableScan [TS_2]
-                                                               alias:y
-                                                               Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
+  Fetch Operator
+    limit:-1
+    Stage-1
+      Reducer 7 llap
+      File Output Operator [FS_59]
+        Group By Operator [GBY_57] (rows=28 width=177)
+          Output:["_col0","_col1"],keys:KEY._col0, KEY._col1
+        <-Union 6 [SIMPLE_EDGE]
+          <-Reducer 15 [CONTAINS] llap
+            Reduce Output Operator [RS_56]
+              PartitionCols:_col0, _col1
+              Group By Operator [GBY_55] (rows=28 width=177)
+                Output:["_col0","_col1"],keys:_col0, _col1
+                Select Operator [SEL_51] (rows=73 width=177)
+                  Output:["_col0","_col1"]
+                  Merge Join Operator [MERGEJOIN_85] (rows=73 width=177)
+                    Conds:RS_48._col2=RS_49._col0(Inner),Output:["_col1","_col2"]
+                  <-Map 18 [SIMPLE_EDGE] llap
+                    SHUFFLE [RS_49]
+                      PartitionCols:_col0
+                      Select Operator [SEL_44] (rows=500 width=87)
+                        Output:["_col0"]
+                        Filter Operator [FIL_81] (rows=500 width=87)
+                          predicate:key is not null
+                          TableScan [TS_42] (rows=500 width=87)
+                            default@src,y,Tbl:COMPLETE,Col:COMPLETE,Output:["key"]
+                  <-Reducer 14 [SIMPLE_EDGE] llap
+                    SHUFFLE [RS_48]
+                      PartitionCols:_col2
+                      Merge Join Operator [MERGEJOIN_84] (rows=30 width=177)
+                        Conds:RS_45._col1=RS_46._col1(Inner),Output:["_col1","_col2"]
+                      <-Map 17 [SIMPLE_EDGE] llap
+                        SHUFFLE [RS_46]
+                          PartitionCols:_col1
+                          Select Operator [SEL_41] (rows=25 width=175)
+                            Output:["_col0","_col1"]
+                            Filter Operator [FIL_80] (rows=25 width=175)
+                              predicate:(key is not null and value is not null)
+                              TableScan [TS_39] (rows=25 width=175)
+                                default@src1,x,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
+                      <-Reducer 13 [SIMPLE_EDGE] llap
+                        SHUFFLE [RS_45]
+                          PartitionCols:_col1
+                          Select Operator [SEL_38] (rows=262 width=178)
+                            Output:["_col1"]
+                            Group By Operator [GBY_37] (rows=262 width=178)
+                              Output:["_col0","_col1"],keys:KEY._col0, KEY._col1
+                            <-Union 12 [SIMPLE_EDGE]
+                              <-Map 11 [CONTAINS] llap
+                                Reduce Output Operator [RS_36]
+                                  PartitionCols:_col0, _col1
+                                  Group By Operator [GBY_35] (rows=262 width=178)
+                                    Output:["_col0","_col1"],keys:_col1, _col0
+                                    Select Operator [SEL_28] (rows=25 width=175)
+                                      Output:["_col0","_col1"]
+                                      Filter Operator [FIL_78] (rows=25 width=175)
+                                        predicate:value is not null
+                                        TableScan [TS_26] (rows=25 width=175)
+                                          Output:["key","value"]
+                              <-Map 16 [CONTAINS] llap
+                                Reduce Output Operator [RS_36]
+                                  PartitionCols:_col0, _col1
+                                  Group By Operator [GBY_35] (rows=262 width=178)
+                                    Output:["_col0","_col1"],keys:_col1, _col0
+                                    Select Operator [SEL_31] (rows=500 width=178)
+                                      Output:["_col0","_col1"]
+                                      Filter Operator [FIL_79] (rows=500 width=178)
+                                        predicate:value is not null
+                                        TableScan [TS_29] (rows=500 width=178)
+                                          Output:["key","value"]
+          <-Reducer 5 [CONTAINS] llap
+            Reduce Output Operator [RS_56]
+              PartitionCols:_col0, _col1
+              Group By Operator [GBY_55] (rows=28 width=177)
+                Output:["_col0","_col1"],keys:_col0, _col1
+                Select Operator [SEL_25] (rows=73 width=177)
+                  Output:["_col0","_col1"]
+                  Merge Join Operator [MERGEJOIN_83] (rows=73 width=177)
+                    Conds:RS_22._col2=RS_23._col0(Inner),Output:["_col1","_col2"]
+                  <-Map 10 [SIMPLE_EDGE] llap
+                    SHUFFLE [RS_23]
+                      PartitionCols:_col0
+                      Select Operator [SEL_18] (rows=500 width=87)
+                        Output:["_col0"]
+                        Filter Operator [FIL_77] (rows=500 width=87)
+                          predicate:key is not null
+                          TableScan [TS_16] (rows=500 width=87)
+                            default@src,y,Tbl:COMPLETE,Col:COMPLETE,Output:["key"]
+                  <-Reducer 4 [SIMPLE_EDGE] llap
+                    SHUFFLE [RS_22]
+                      PartitionCols:_col2
+                      Merge Join Operator [MERGEJOIN_82] (rows=30 width=177)
+                        Conds:RS_19._col1=RS_20._col1(Inner),Output:["_col1","_col2"]
+                      <-Map 9 [SIMPLE_EDGE] llap
+                        SHUFFLE [RS_20]
+                          PartitionCols:_col1
+                          Select Operator [SEL_15] (rows=25 width=175)
+                            Output:["_col0","_col1"]
+                            Filter Operator [FIL_76] (rows=25 width=175)
+                              predicate:(key is not null and value is not null)
+                              TableScan [TS_13] (rows=25 width=175)
+                                default@src1,x,Tbl:COMPLETE,Col:COMPLETE,Output:["key","value"]
+                      <-Reducer 3 [SIMPLE_EDGE] llap
+                        SHUFFLE [RS_19]
+                          PartitionCols:_col1
+                          Select Operator [SEL_12] (rows=262 width=178)
+                            Output:["_col1"]
+                            Group By Operator [GBY_11] (rows=262 width=178)
+                              Output:["_col0","_col1"],keys:KEY._col0, KEY._col1
+                            <-Union 2 [SIMPLE_EDGE]
+                              <-Map 1 [CONTAINS] llap
+                                Reduce Output Operator [RS_10]
+                                  PartitionCols:_col0, _col1
+                                  Group By Operator [GBY_9] (rows=262 width=178)
+                                    Output:["_col0","_col1"],keys:_col1, _col0
+                                    Select Operator [SEL_2] (rows=25 width=175)
+                                      Output:["_col0","_col1"]
+                                      Filter Operator [FIL_74] (rows=25 width=175)
+                                        predicate:value is not null
+                                        TableScan [TS_0] (rows=25 width=175)
+                                          Output:["key","value"]
+                              <-Map 8 [CONTAINS] llap
+                                Reduce Output Operator [RS_10]
+                                  PartitionCols:_col0, _col1
+                                  Group By Operator [GBY_9] (rows=262 width=178)
+                                    Output:["_col0","_col1"],keys:_col1, _col0
+                                    Select Operator [SEL_5] (rows=500 width=178)
+                                      Output:["_col0","_col1"]
+                                      Filter Operator [FIL_75] (rows=500 width=178)
+                                        predicate:value is not null
+                                        TableScan [TS_3] (rows=500 width=178)
+                                          Output:["key","value"]
 
 PREHOOK: query: explain
 SELECT x.key, y.value
@@ -906,475 +645,271 @@ Reducer 7 <- Union 6 (SIMPLE_EDGE), Union 8 (CONTAINS)
 Reducer 9 <- Union 8 (SIMPLE_EDGE)
 
 Stage-0
-   Fetch Operator
-      limit:-1
-      Stage-1
-         Reducer 9
-         File Output Operator [FS_119]
-            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"}
-            Group By Operator [GBY_117]
-            |  keys:KEY._col0 (type: string), KEY._col1 (type: string)
-            |  outputColumnNames:["_col0","_col1"]
-            |  Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-            |<-Union 8 [SIMPLE_EDGE]
-               |<-Reducer 32 [CONTAINS]
-               |  Reduce Output Operator [RS_116]
-               |     key expressions:_col0 (type: string), _col1 (type: string)
-               |     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |     sort order:++
-               |     Statistics:Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
-               |     Group By Operator [GBY_115]
-               |        keys:_col0 (type: string), _col1 (type: string)
-               |        outputColumnNames:["_col0","_col1"]
-               |        Statistics:Num rows: 550 Data size: 5842 Basic stats: COMPLETE Column stats: NONE
-               |        Select Operator [SEL_111]
-               |           outputColumnNames:["_col0","_col1"]
-               |           Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-               |           Merge Join Operator [MERGEJOIN_167]
-               |           |  condition map:[{"":"Inner Join 0 to 1"}]
-               |           |  keys:{"0":"_col2 (type: string)","1":"_col0 (type: string)"}
-               |           |  outputColumnNames:["_col2","_col5"]
-               |           |  Statistics:Num rows: 275 Data size: 2921 Basic stats: COMPLETE Column stats: NONE
-               |           |<-Map 37 [SIMPLE_EDGE]
-               |           |  Reduce Output Operator [RS_109]
-               |           |     key expressions:_col0 (type: string)
-               |           |     Map-reduce partition columns:_col0 (type: string)
-               |           |     sort order:+
-               |           |     Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |           |     value expressions:_col1 (type: string)
-               |           |     Select Operator [SEL_100]
-               |           |        outputColumnNames:["_col0","_col1"]
-               |           |        Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |           |        Filter Operator [FIL_161]
-               |           |           predicate:key is not null (type: boolean)
-               |           |           Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |           |           TableScan [TS_99]
-               |           |              alias:y
-               |           |              Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-               |           |<-Reducer 31 [SIMPLE_EDGE]
-               |              Reduce Output Operator [RS_107]
-               |                 key expressions:_col2 (type: string)
-               |                 Map-reduce partition columns:_col2 (type: string)
-               |                 sort order:+
-               |                 Statistics:Num rows: 242 Data size: 2565 Basic stats: COMPLETE Column stats: NONE
-               |                 Merge Join Operator [MERGEJOIN_166]
-               |                 |  condition map:[{"":"Inner Join 0 to 1"}]
-               |                 |  keys:{"0":"_col1 (type: string)","1":"_col1 (type: string)"}
-               |                 |  outputColumnNames:["_col2"]
-               |                 |  Statistics:Num rows: 242 Data size: 2565 Basic stats: COMPLETE Column stats: NONE
-               |                 |<-Map 36 [SIMPLE_EDGE]
-               |                 |  Reduce Output Operator [RS_104]
-               |                 |     key expressions:_col1 (type: string)
-               |                 |     Map-reduce partition columns:_col1 (type: string)
-               |                 |     sort order:+
-               |                 |     Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-               |                 |     value expressions:_col0 (type: string)
-               |                 |     Select Operator [SEL_98]
-               |                 |        outputColumnNames:["_col0","_col1"]
-               |                 |        Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-               |                 |        Filter Operator [FIL_160]
-               |                 |           predicate:(value is not null and key is not null) (type: boolean)
-               |                 |           Statistics:Num rows: 7 Data size: 53 Basic stats: COMPLETE Column stats: NONE
-               |                 |           TableScan [TS_97]
-               |                 |              alias:x
-               |                 |              Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
-               |                 |<-Reducer 30 [SIMPLE_EDGE]
-               |                    Reduce Output Operator [RS_102]
-               |                       key expressions:_col1 (type: string)
-               |                       Map-reduce partition columns:_col1 (type: string)
-               |                       sort order:+
-               |                       Statistics:Num rows: 220 Data size: 2332 Basic stats: COMPLETE Column stats: NONE
-               |                       Select Operator [SEL_96]
-               |                          outputColumnNames:["_col1"]
-               |                          Statistics:Num rows: 220 Data size: 2332 Basic stats: COMPLETE Column stats: NONE
-               |                          Group By Operator [GBY_95]
-               |                          |  keys:KEY._col0 (type: string), KEY._col1 (type: string)
-               |                          |  outputColumnNames:["_col0","_col1"]
-               |                          |  Statistics:Num rows: 220 Data size: 2332 Basic stats: COMPLETE Column stats: NONE
-               |                          |<-Union 29 [SIMPLE_EDGE]
-               |                             |<-Map 35 [CONTAINS]
-               |                             |  Reduce Output Operator [RS_94]
-               |                             |     key expressions:_col0 (type: string), _col1 (type: string)
-               |                             |     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                             |     sort order:++
-               |                             |     Statistics:Num rows: 440 Data size: 4664 Basic stats: COMPLETE Column stats: NONE
-               |                             |     Group By Operator [GBY_93]
-               |                             |        keys:_col0 (type: string), _col1 (type: string)
-               |                             |        outputColumnNames:["_col0","_col1"]
-               |                             |        Statistics:Num rows: 440 Data size: 4664 Basic stats: COMPLETE Column stats: NONE
-               |                             |        Select Operator [SEL_89]
-               |                             |           outputColumnNames:["_col0","_col1"]
-               |                             |           Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |                             |           Filter Operator [FIL_159]
-               |                             |              predicate:value is not null (type: boolean)
-               |                             |              Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |                             |              TableScan [TS_88]
-               |                             |                 alias:y
-               |                             |                 Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-               |                             |<-Reducer 28 [CONTAINS]
-               |                                Reduce Output Operator [RS_94]
-               |                                   key expressions:_col0 (type: string), _col1 (type: string)
-               |                                   Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                                   sort order:++
-               |                                   Statistics:Num rows: 440 Data size: 4664 Basic stats: COMPLETE Column stats: NONE
-               |                                   Group By Operator [GBY_93]
-               |                                      keys:_col0 (type: string), _col1 (type: string)
-               |                                      outputColumnNames:["_col0","_col1"]
-               |                                      Statistics:Num rows: 440 Data size: 4664 Basic stats: COMPLETE Column stats: NONE
-               |                                      Group By Operator [GBY_86]
-               |                                      |  keys:KEY._col0 (type: string), KEY._col1 (type: string)
-               |                                      |  outputColumnNames:["_col0","_col1"]
-               |                                      |  Statistics:Num rows: 190 Data size: 2008 Basic stats: COMPLETE Column stats: NONE
-               |                                      |<-Union 27 [SIMPLE_EDGE]
-               |                                         |<-Map 34 [CONTAINS]
-               |                                         |  Reduce Output Operator [RS_85]
-               |                                         |     key expressions:_col0 (type: string), _col1 (type: string)
-               |                                         |     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                                         |     sort order:++
-               |                                         |     Statistics:Num rows: 381 Data size: 4028 Basic stats: COMPLETE Column stats: NONE
-               |                                         |     Group By Operator [GBY_84]
-               |                                         |        keys:_col0 (type: string), _col1 (type: string)
-               |                                         |        outputColumnNames:["_col0","_col1"]
-               |                                         |        Statistics:Num rows: 381 Data size: 4028 Basic stats: COMPLETE Column stats: NONE
-               |                                         |        Select Operator [SEL_80]
-               |                                         |           outputColumnNames:["_col0","_col1"]
-               |                                         |           Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |                                         |           Filter Operator [FIL_158]
-               |                                         |              predicate:value is not null (type: boolean)
-               |                                         |              Statistics:Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
-               |                                         |              TableScan [TS_79]
-               |                                         |                 alias:y
-               |                                         |                 Statistics:Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
-               |                                         |<-Reducer 26 [CONTAINS]
-               |                                            Reduce Output Operator [RS_85]
-               |                                               key expressions:_col0 (type: string), _col1 (type: string)
-               |                                               Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                                               sort order:++
-               |                                               Statistics:Num rows: 381 Data size: 4028 Basic stats: COMPLETE Column stats: NONE
-               |                                               Group By Operator [GBY_84]
-               |                                                  keys:_col0 (type: string), _col1 (type: string)
-               |                                                  outputColumnNames:["_col0","_col1"]
-               |                                                  Statistics:Num rows: 381 Data size: 4028 Basic stats: COMPLETE Column stats: NONE
-               |                                                  Group By Operator [GBY_77]
-               |                                                  |  keys:KEY._col0 (type: string), KEY._col1 (type: string)
-               |                                                  |  outputColumnNames:["_col0","_col1"]
-               |                                                  |  Statistics:Num rows: 131 Data size: 1372 Basic stats: COMPLETE Column stats: NONE
-               |                                                  |<-Union 25 [SIMPLE_EDGE]
-               |                                                     |<-Map 24 [CONTAINS]
-               |                                                     |  Reduce Output Operator [RS_76]
-               |                                                     |     key expressions:_col0 (type: string), _col1 (type: string)
-               |                                                     |     Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                                                     |     sort order:++
-               |                                                     |     Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                                                     |     Group By Operator [GBY_75]
-               |                                                     |        keys:_col0 (type: string), _col1 (type: string)
-               |                                                     |        outputColumnNames:["_col0","_col1"]
-               |                                                     |        Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                                                     |        Select Operator [SEL_69]
-               |                                                     |           outputColumnNames:["_col0","_col1"]
-               |                                                     |           Statistics:Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
-               |                                                     |           Filter Operator [FIL_156]
-               |                                                     |              predicate:value is not null (type: boolean)
-               |                                                     |              Statistics:Num rows: 13 Data size: 99 Basic stats: COMPLETE Column stats: NONE
-               |                                                     |              TableScan [TS_68]
-               |                                                     |                 alias:x
-               |                                                     |                 Statistics:Num rows: 25 Data size: 191 Basic stats: COMPLETE Column stats: NONE
-               |                                                     |<-Map 33 [CONTAINS]
-               |                                                        Reduce Output Operator [RS_76]
-               |                                                           key expressions:_col0 (type: string), _col1 (type: string)
-               |                                                           Map-reduce partition columns:_col0 (type: string), _col1 (type: string)
-               |                                                           sort order:++
-               |                                                           Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                                                           Group By Operator [GBY_75]
-               |                                                              keys:_col0 (type: string), _col1 (type: string)
-               |                                                              outputColumnNames:["_col0","_col1"]
-               |                                                              Statistics:Num rows: 263 Data size: 2755 Basic stats: COMPLETE Column stats: NONE
-               |                                                              Select Operator [SEL_71]
-               |                                                                 outputColumnNames:["_col0","_col

<TRUNCATED>

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