PREHOOK: query: -- scanning un-partitioned data
explain extended select * from src where rand(1) < 0.1
PREHOOK: type: QUERY
POSTHOOK: query: -- scanning un-partitioned data
explain extended select * from src where rand(1) < 0.1
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  
TOK_QUERY
   TOK_FROM
      TOK_TABREF
         TOK_TABNAME
            src
   TOK_INSERT
      TOK_DESTINATION
         TOK_DIR
            TOK_TMP_FILE
      TOK_SELECT
         TOK_SELEXPR
            TOK_ALLCOLREF
      TOK_WHERE
         <
            TOK_FUNCTION
               rand
               1
            0.1


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
            GatherStats: false
            Filter Operator
              isSamplingPred: false
              predicate: (rand(1) < 0.1) (type: boolean)
              Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
              Select Operator
                expressions: key (type: string), value (type: string)
                outputColumnNames: _col0, _col1
                Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
                File Output Operator
                  compressed: false
                  GlobalTableId: 0
#### A masked pattern was here ####
                  NumFilesPerFileSink: 1
                  Statistics: Num rows: 166 Data size: 1763 Basic stats: COMPLETE Column stats: NONE
#### A masked pattern was here ####
                  table:
                      input format: org.apache.hadoop.mapred.TextInputFormat
                      output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
                      properties:
                        columns _col0,_col1
                        columns.types string:string
                        escape.delim \
                        hive.serialization.extend.additional.nesting.levels true
                        serialization.format 1
                        serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
                      serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
                  TotalFiles: 1
                  GatherStats: false
                  MultiFileSpray: false
      Path -> Alias:
#### A masked pattern was here ####
      Path -> Partition:
#### A masked pattern was here ####
          Partition
            base file name: src
            input format: org.apache.hadoop.mapred.TextInputFormat
            output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
            properties:
              COLUMN_STATS_ACCURATE true
              bucket_count -1
              columns key,value
              columns.comments 'default','default'
              columns.types string:string
#### A masked pattern was here ####
              name default.src
              numFiles 1
              numRows 500
              rawDataSize 5312
              serialization.ddl struct src { string key, string value}
              serialization.format 1
              serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
              totalSize 5812
#### A masked pattern was here ####
            serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
          
              input format: org.apache.hadoop.mapred.TextInputFormat
              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
              properties:
                COLUMN_STATS_ACCURATE true
                bucket_count -1
                columns key,value
                columns.comments 'default','default'
                columns.types string:string
#### A masked pattern was here ####
                name default.src
                numFiles 1
                numRows 500
                rawDataSize 5312
                serialization.ddl struct src { string key, string value}
                serialization.format 1
                serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
                totalSize 5812
#### A masked pattern was here ####
              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
              name: default.src
            name: default.src
      Truncated Path -> Alias:
        /src [src]

  Stage: Stage-0
    Fetch Operator
      limit: -1
      Processor Tree:
        ListSink

PREHOOK: query: select * from src where rand(1) < 0.1
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select * from src where rand(1) < 0.1
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
409	val_409
429	val_429
209	val_209
153	val_153
203	val_203
170	val_170
489	val_489
378	val_378
221	val_221
498	val_498
469	val_469
176	val_176
176	val_176
384	val_384
217	val_217
431	val_431
51	val_51
288	val_288
457	val_457
197	val_197
77	val_77
138	val_138
277	val_277
224	val_224
309	val_309
389	val_389
331	val_331
317	val_317
336	val_336
42	val_42
458	val_458
78	val_78
453	val_453
74	val_74
103	val_103
467	val_467
202	val_202
469	val_469
44	val_44
454	val_454
70	val_70
491	val_491
199	val_199
169	val_169
310	val_310
233	val_233
133	val_133
26	val_26
134	val_134
18	val_18
298	val_298
348	val_348
469	val_469
37	val_37
152	val_152
400	val_400