PREHOOK: query: create table dest30(a int)
PREHOOK: type: CREATETABLE
POSTHOOK: query: create table dest30(a int)
POSTHOOK: type: CREATETABLE
POSTHOOK: Output: default@dest30
PREHOOK: query: create table tst_dest30(a int)
PREHOOK: type: CREATETABLE
POSTHOOK: query: create table tst_dest30(a int)
POSTHOOK: type: CREATETABLE
POSTHOOK: Output: default@tst_dest30
PREHOOK: query: explain 
insert overwrite table dest30
select count(1) from src
PREHOOK: type: QUERY
POSTHOOK: query: explain 
insert overwrite table dest30
select count(1) from src
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_TAB (TOK_TABNAME dest30))) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION count 1)))))

STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 depends on stages: Stage-1
  Stage-2 depends on stages: Stage-0

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Alias -> Map Operator Tree:
        src 
          TableScan
            alias: src
            Filter Operator
              predicate:
                  expr: (((hash(rand(460476415)) & 2147483647) % 32) = 0)
                  type: boolean
              Select Operator
                Group By Operator
                  aggregations:
                        expr: count(1)
                  bucketGroup: false
                  mode: hash
                  outputColumnNames: _col0
                  Reduce Output Operator
                    sort order: 
                    tag: -1
                    value expressions:
                          expr: _col0
                          type: bigint
      Reduce Operator Tree:
        Group By Operator
          aggregations:
                expr: count(VALUE._col0)
          bucketGroup: false
          mode: mergepartial
          outputColumnNames: _col0
          Select Operator
            expressions:
                  expr: _col0
                  type: bigint
            outputColumnNames: _col0
            Select Operator
              expressions:
                    expr: UDFToInteger(_col0)
                    type: int
              outputColumnNames: _col0
              File Output Operator
                compressed: false
                GlobalTableId: 1
                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
                    name: default.tst_dest30

  Stage: Stage-0
    Move Operator
      tables:
          replace: true
          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
              name: default.tst_dest30

  Stage: Stage-2
    Stats-Aggr Operator


PREHOOK: query: insert overwrite table dest30
select count(1) from src
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: default@tst_dest30
POSTHOOK: query: insert overwrite table dest30
select count(1) from src
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: default@tst_dest30
POSTHOOK: Lineage: tst_dest30.a EXPRESSION [(src)src.null, ]
PREHOOK: query: select * from tst_dest30
PREHOOK: type: QUERY
PREHOOK: Input: default@tst_dest30
PREHOOK: Output: file:/tmp/sdong/hive_2011-02-10_15-55-14_824_7555560565228029700/-mr-10000
POSTHOOK: query: select * from tst_dest30
POSTHOOK: type: QUERY
POSTHOOK: Input: default@tst_dest30
POSTHOOK: Output: file:/tmp/sdong/hive_2011-02-10_15-55-14_824_7555560565228029700/-mr-10000
POSTHOOK: Lineage: tst_dest30.a EXPRESSION [(src)src.null, ]
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