PREHOOK: query: CREATE TABLE dest1(c1 STRING) STORED AS TEXTFILE
PREHOOK: type: CREATETABLE
POSTHOOK: query: CREATE TABLE dest1(c1 STRING) STORED AS TEXTFILE
POSTHOOK: type: CREATETABLE
POSTHOOK: Output: default@dest1
PREHOOK: query: EXPLAIN
FROM src
INSERT OVERWRITE TABLE dest1 SELECT DISTINCT substr(src.value,5,1)
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN
FROM src
INSERT OVERWRITE TABLE dest1 SELECT DISTINCT substr(src.value,5,1)
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_TAB (TOK_TABNAME dest1))) (TOK_SELECTDI (TOK_SELEXPR (TOK_FUNCTION substr (. (TOK_TABLE_OR_COL src) value) 5 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
            Select Operator
              expressions:
                    expr: value
                    type: string
              outputColumnNames: value
              Group By Operator
                bucketGroup: false
                keys:
                      expr: substr(value, 5, 1)
                      type: string
                mode: hash
                outputColumnNames: _col0
                Reduce Output Operator
                  key expressions:
                        expr: _col0
                        type: string
                  sort order: +
                  Map-reduce partition columns:
                        expr: _col0
                        type: string
                  tag: -1
      Reduce Operator Tree:
        Group By Operator
          bucketGroup: false
          keys:
                expr: KEY._col0
                type: string
          mode: mergepartial
          outputColumnNames: _col0
          Select Operator
            expressions:
                  expr: _col0
                  type: string
            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.dest1

  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.dest1

  Stage: Stage-2
    Stats-Aggr Operator


PREHOOK: query: FROM src
INSERT OVERWRITE TABLE dest1 SELECT DISTINCT substr(src.value,5,1)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: default@dest1
POSTHOOK: query: FROM src
INSERT OVERWRITE TABLE dest1 SELECT DISTINCT substr(src.value,5,1)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: default@dest1
POSTHOOK: Lineage: dest1.c1 EXPRESSION [(src)src.FieldSchema(name:value, type:string, comment:default), ]
PREHOOK: query: SELECT dest1.* FROM dest1
PREHOOK: type: QUERY
PREHOOK: Input: default@dest1
PREHOOK: Output: file:/tmp/sdong/hive_2011-02-10_01-52-02_815_806725915630239369/-mr-10000
POSTHOOK: query: SELECT dest1.* FROM dest1
POSTHOOK: type: QUERY
POSTHOOK: Input: default@dest1
POSTHOOK: Output: file:/tmp/sdong/hive_2011-02-10_01-52-02_815_806725915630239369/-mr-10000
POSTHOOK: Lineage: dest1.c1 EXPRESSION [(src)src.FieldSchema(name:value, type:string, comment:default), ]
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