PREHOOK: query: explain
select sign(0) FROM src tablesample (1 rows)
PREHOOK: type: QUERY
POSTHOOK: query: explain
select sign(0) FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
STAGE DEPENDENCIES:
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-0
    Fetch Operator
      limit: -1
      Processor Tree:
        TableScan
          alias: src
          Row Limit Per Split: 1
          Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
          Select Operator
            expressions: 0.0 (type: double)
            outputColumnNames: _col0
            Statistics: Num rows: 500 Data size: 4000 Basic stats: COMPLETE Column stats: COMPLETE
            ListSink

PREHOOK: query: select sign(0) FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select sign(0) FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
0.0
PREHOOK: query: select sign(-45) FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select sign(-45) FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
-1.0
PREHOOK: query: select sign(46)  FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select sign(46)  FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
1.0
PREHOOK: query: DESCRIBE FUNCTION sign
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION sign
POSTHOOK: type: DESCFUNCTION
sign(x) - returns the sign of x )
PREHOOK: query: DESCRIBE FUNCTION EXTENDED sign
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED sign
POSTHOOK: type: DESCFUNCTION
sign(x) - returns the sign of x )
Example:
   > SELECT sign(40) FROM src LIMIT 1;
  1
PREHOOK: query: explain 
select sign(0) FROM src tablesample (1 rows)
PREHOOK: type: QUERY
POSTHOOK: query: explain 
select sign(0) FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
STAGE DEPENDENCIES:
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-0
    Fetch Operator
      limit: -1
      Processor Tree:
        TableScan
          alias: src
          Row Limit Per Split: 1
          Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: COMPLETE
          Select Operator
            expressions: 0.0 (type: double)
            outputColumnNames: _col0
            Statistics: Num rows: 500 Data size: 4000 Basic stats: COMPLETE Column stats: COMPLETE
            ListSink

PREHOOK: query: select sign(0) FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select sign(0) FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
0.0
PREHOOK: query: select sign(-45) FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select sign(-45) FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
-1.0
PREHOOK: query: select sign(46)  FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: select sign(46)  FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
1.0
PREHOOK: query: DESCRIBE FUNCTION sign
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION sign
POSTHOOK: type: DESCFUNCTION
sign(x) - returns the sign of x )
PREHOOK: query: DESCRIBE FUNCTION EXTENDED sign
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED sign
POSTHOOK: type: DESCFUNCTION
sign(x) - returns the sign of x )
Example:
   > SELECT sign(40) FROM src LIMIT 1;
  1