PREHOOK: query: DESCRIBE FUNCTION in_file
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION in_file
POSTHOOK: type: DESCFUNCTION
in_file(str, filename) - Returns true if str appears in the file
PREHOOK: query: EXPLAIN
SELECT in_file("303", "../../data/files/test2.dat"),
       in_file("304", "../../data/files/test2.dat"),
       in_file(CAST(NULL AS STRING), "../../data/files/test2.dat")
FROM src LIMIT 1
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN
SELECT in_file("303", "../../data/files/test2.dat"),
       in_file("304", "../../data/files/test2.dat"),
       in_file(CAST(NULL AS STRING), "../../data/files/test2.dat")
FROM src LIMIT 1
POSTHOOK: type: QUERY
STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Map Operator Tree:
          TableScan
            alias: src
            Statistics: Num rows: 0 Data size: 5812 Basic stats: PARTIAL Column stats: COMPLETE
            Select Operator
              expressions: in_file('303', '../../data/files/test2.dat') (type: boolean), in_file('304', '../../data/files/test2.dat') (type: boolean), in_file(UDFToString(null), '../../data/files/test2.dat') (type: boolean)
              outputColumnNames: _col0, _col1, _col2
              Statistics: Num rows: 0 Data size: 5812 Basic stats: PARTIAL Column stats: COMPLETE
              Limit
                Number of rows: 1
                Statistics: Num rows: 0 Data size: 5812 Basic stats: PARTIAL Column stats: COMPLETE
                File Output Operator
                  compressed: false
                  Statistics: Num rows: 0 Data size: 5812 Basic stats: PARTIAL Column stats: COMPLETE
                  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: 1

PREHOOK: query: SELECT in_file("303", "../../data/files/test2.dat"),
       in_file("304", "../../data/files/test2.dat"),
       in_file(CAST(NULL AS STRING), "../../data/files/test2.dat")
FROM src LIMIT 1
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT in_file("303", "../../data/files/test2.dat"),
       in_file("304", "../../data/files/test2.dat"),
       in_file(CAST(NULL AS STRING), "../../data/files/test2.dat")
FROM src LIMIT 1
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
true	false	NULL