PREHOOK: query: explain
SELECT sum(hash(subq.key, tab.value)) 
FROM 
(select a.key, a.value from src a where a.key > 10 ) subq 
JOIN src tab 
ON (subq.key = tab.key and subq.key > 20 and subq.value = tab.value) 
where tab.value < 200
PREHOOK: type: QUERY
POSTHOOK: query: explain
SELECT sum(hash(subq.key, tab.value)) 
FROM 
(select a.key, a.value from src a where a.key > 10 ) subq 
JOIN src tab 
ON (subq.key = tab.key and subq.key > 20 and subq.value = tab.value) 
where tab.value < 200
POSTHOOK: type: QUERY
STAGE DEPENDENCIES:
  Stage-2 is a root stage
  Stage-1 depends on stages: Stage-2
  Stage-0 depends on stages: Stage-1

STAGE PLANS:
  Stage: Stage-2
    Spark
#### A masked pattern was here ####
      Vertices:
        Map 1 
            Map Operator Tree:
                TableScan
                  alias: a
                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  Filter Operator
                    predicate: ((((key > 10) and value is not null) and (key > 20)) and (value < 200)) (type: boolean)
                    Statistics: Num rows: 9 Data size: 95 Basic stats: COMPLETE Column stats: NONE
                    Select Operator
                      expressions: key (type: string), value (type: string)
                      outputColumnNames: _col0, _col1
                      Statistics: Num rows: 9 Data size: 95 Basic stats: COMPLETE Column stats: NONE
                      Spark HashTable Sink Operator
                        keys:
                          0 _col0 (type: string), _col1 (type: string)
                          1 key (type: string), value (type: string)
            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
                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  Filter Operator
                    predicate: ((((key > 20) and value is not null) and key is not null) and (value < 200)) (type: boolean)
                    Statistics: Num rows: 14 Data size: 148 Basic stats: COMPLETE Column stats: NONE
                    Map Join Operator
                      condition map:
                           Inner Join 0 to 1
                      keys:
                        0 _col0 (type: string), _col1 (type: string)
                        1 key (type: string), value (type: string)
                      outputColumnNames: _col0, _col3
                      input vertices:
                        0 Map 1
                      Statistics: Num rows: 15 Data size: 162 Basic stats: COMPLETE Column stats: NONE
                      Group By Operator
                        aggregations: sum(hash(_col0,_col3))
                        mode: hash
                        outputColumnNames: _col0
                        Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                        Reduce Output Operator
                          sort order: 
                          Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                          value expressions: _col0 (type: bigint)
            Local Work:
              Map Reduce Local Work
        Reducer 3 
            Reduce Operator Tree:
              Group By Operator
                aggregations: sum(VALUE._col0)
                mode: mergepartial
                outputColumnNames: _col0
                Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                Select Operator
                  expressions: _col0 (type: bigint)
                  outputColumnNames: _col0
                  Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE
                  File Output Operator
                    compressed: false
                    Statistics: Num rows: 1 Data size: 8 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-0
    Fetch Operator
      limit: -1
      Processor Tree:
        ListSink

PREHOOK: query: SELECT sum(hash(subq.key, tab.value)) 
FROM 
(select a.key, a.value from src a where a.key > 10 ) subq 
JOIN src tab 
ON (subq.key = tab.key and subq.key > 20 and subq.value = tab.value) 
where tab.value < 200
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT sum(hash(subq.key, tab.value)) 
FROM 
(select a.key, a.value from src a where a.key > 10 ) subq 
JOIN src tab 
ON (subq.key = tab.key and subq.key > 20 and subq.value = tab.value) 
where tab.value < 200
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
NULL