PREHOOK: query: explain
select count(key),sum(key),avg(key),min(key),max(key),std(key),variance(key) from src
PREHOOK: type: QUERY
POSTHOOK: query: explain
select count(key),sum(key),avg(key),min(key),max(key),std(key),variance(key) from src
POSTHOOK: type: QUERY
STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 depends on stages: Stage-1

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)
              outputColumnNames: _col0
              Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE
              Group By Operator
                aggregations: count(_col0), sum(_col0), avg(_col0), min(_col0), max(_col0), std(_col0), variance(_col0)
                mode: hash
                outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6
                Statistics: Num rows: 1 Data size: 184 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-0
    Fetch Operator
      limit: -1
      Processor Tree:
        Group By Operator
          aggregations: count(_col0), sum(_col1), avg(_col2), min(_col3), max(_col4), std(_col5), variance(_col6)
          mode: mergepartial
          outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6
          Statistics: Num rows: 1 Data size: 208 Basic stats: COMPLETE Column stats: NONE
          Select Operator
            expressions: _col0 (type: bigint), _col1 (type: double), _col2 (type: double), _col3 (type: string), _col4 (type: string), _col5 (type: double), _col6 (type: double)
            outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6
            Statistics: Num rows: 1 Data size: 208 Basic stats: COMPLETE Column stats: NONE
            ListSink

PREHOOK: query: select count(key),sum(key),avg(key),min(key),max(key),std(key),variance(key) from src
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select count(key),sum(key),avg(key),min(key),max(key),std(key),variance(key) from src
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
500	130091.0	260.182	0	98	142.92680950752384	20428.072876000006