PREHOOK: query: create table tst1(key STRING, cnt INT)
PREHOOK: type: CREATETABLE
POSTHOOK: query: create table tst1(key STRING, cnt INT)
POSTHOOK: type: CREATETABLE
POSTHOOK: Output: default@tst1
PREHOOK: query: INSERT OVERWRITE TABLE tst1
SELECT a.key, count(1) FROM src a group by a.key
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: default@tst1
POSTHOOK: query: INSERT OVERWRITE TABLE tst1
SELECT a.key, count(1) FROM src a group by a.key
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: default@tst1
POSTHOOK: Lineage: tst1.cnt EXPRESSION [(src)a.null, ]
POSTHOOK: Lineage: tst1.key SIMPLE [(src)a.FieldSchema(name:key, type:string, comment:default), ]
PREHOOK: query: explain 
SELECT sum(a.cnt)  FROM tst1 a JOIN tst1 b ON a.key = b.key
PREHOOK: type: QUERY
POSTHOOK: query: explain 
SELECT sum(a.cnt)  FROM tst1 a JOIN tst1 b ON a.key = b.key
POSTHOOK: type: QUERY
POSTHOOK: Lineage: tst1.cnt EXPRESSION [(src)a.null, ]
POSTHOOK: Lineage: tst1.key SIMPLE [(src)a.FieldSchema(name:key, type:string, comment:default), ]
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_TABREF (TOK_TABNAME tst1) a) (TOK_TABREF (TOK_TABNAME tst1) b) (= (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) key)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION sum (. (TOK_TABLE_OR_COL a) cnt))))))

STAGE DEPENDENCIES:
  Stage-5 is a root stage
  Stage-2 depends on stages: Stage-5
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-5
    Map Reduce Local Work
      Alias -> Map Local Tables:
        a 
          Fetch Operator
            limit: -1
      Alias -> Map Local Operator Tree:
        a 
          TableScan
            alias: a
            HashTable Sink Operator
              condition expressions:
                0 {cnt}
                1 
              handleSkewJoin: false
              keys:
                0 [Column[key]]
                1 [Column[key]]
              Position of Big Table: 1

  Stage: Stage-2
    Map Reduce
      Alias -> Map Operator Tree:
        b 
          TableScan
            alias: b
            Map Join Operator
              condition map:
                   Inner Join 0 to 1
              condition expressions:
                0 {cnt}
                1 
              handleSkewJoin: false
              keys:
                0 [Column[key]]
                1 [Column[key]]
              outputColumnNames: _col1
              Position of Big Table: 1
              Select Operator
                expressions:
                      expr: _col1
                      type: int
                outputColumnNames: _col1
                Group By Operator
                  aggregations:
                        expr: sum(_col1)
                  bucketGroup: false
                  mode: hash
                  outputColumnNames: _col0
                  Reduce Output Operator
                    sort order: 
                    tag: -1
                    value expressions:
                          expr: _col0
                          type: bigint
      Local Work:
        Map Reduce Local Work
      Reduce Operator Tree:
        Group By Operator
          aggregations:
                expr: sum(VALUE._col0)
          bucketGroup: false
          mode: mergepartial
          outputColumnNames: _col0
          Select Operator
            expressions:
                  expr: _col0
                  type: bigint
            outputColumnNames: _col0
            File Output Operator
              compressed: false
              GlobalTableId: 0
              table:
                  input format: org.apache.hadoop.mapred.TextInputFormat
                  output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat

  Stage: Stage-0
    Fetch Operator
      limit: -1


PREHOOK: query: SELECT sum(a.cnt)  FROM tst1 a JOIN tst1 b ON a.key = b.key
PREHOOK: type: QUERY
PREHOOK: Input: default@tst1
#### A masked pattern was here ####
POSTHOOK: query: SELECT sum(a.cnt)  FROM tst1 a JOIN tst1 b ON a.key = b.key
POSTHOOK: type: QUERY
POSTHOOK: Input: default@tst1
#### A masked pattern was here ####
POSTHOOK: Lineage: tst1.cnt EXPRESSION [(src)a.null, ]
POSTHOOK: Lineage: tst1.key SIMPLE [(src)a.FieldSchema(name:key, type:string, comment:default), ]
500