PREHOOK: query: EXPLAIN
SELECT src.key, sum(substr(src.value,5)) FROM src GROUP BY src.key ORDER BY src.key LIMIT 5
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN
SELECT src.key, sum(substr(src.value,5)) FROM src GROUP BY src.key ORDER BY src.key LIMIT 5
POSTHOOK: type: QUERY
STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-2 depends on stages: Stage-1
  Stage-0 depends on stages: Stage-2

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Map Operator Tree:
          TableScan
            alias: src
            Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
            Select Operator
              expressions: key (type: string), substr(value, 5) (type: string)
              outputColumnNames: _col0, _col1
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
              Group By Operator
                aggregations: sum(_col1)
                keys: _col0 (type: string)
                mode: hash
                outputColumnNames: _col0, _col1
                Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                Reduce Output Operator
                  key expressions: _col0 (type: string)
                  sort order: +
                  Map-reduce partition columns: _col0 (type: string)
                  Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
                  value expressions: _col1 (type: double)
      Reduce Operator Tree:
        Group By Operator
          aggregations: sum(VALUE._col0)
          keys: KEY._col0 (type: string)
          mode: mergepartial
          outputColumnNames: _col0, _col1
          Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
          File Output Operator
            compressed: false
            table:
                input format: org.apache.hadoop.mapred.SequenceFileInputFormat
                output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat
                serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe

  Stage: Stage-2
    Map Reduce
      Map Operator Tree:
          TableScan
            Reduce Output Operator
              key expressions: _col0 (type: string)
              sort order: +
              Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
              value expressions: _col1 (type: double)
      Reduce Operator Tree:
        Select Operator
          expressions: KEY.reducesinkkey0 (type: string), VALUE._col0 (type: double)
          outputColumnNames: _col0, _col1
          Statistics: Num rows: 250 Data size: 2656 Basic stats: COMPLETE Column stats: NONE
          Limit
            Number of rows: 5
            Statistics: Num rows: 5 Data size: 50 Basic stats: COMPLETE Column stats: NONE
            File Output Operator
              compressed: false
              Statistics: Num rows: 5 Data size: 50 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: 5
      Processor Tree:
        ListSink

PREHOOK: query: SELECT src.key, sum(substr(src.value,5)) FROM src GROUP BY src.key ORDER BY src.key LIMIT 5
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT src.key, sum(substr(src.value,5)) FROM src GROUP BY src.key ORDER BY src.key LIMIT 5
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
0	0.0
10	10.0
100	200.0
103	206.0
104	208.0