PREHOOK: query: DESCRIBE FUNCTION space
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION space
POSTHOOK: type: DESCFUNCTION
space(n) - returns n spaces
PREHOOK: query: DESCRIBE FUNCTION EXTENDED space
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED space
POSTHOOK: type: DESCFUNCTION
space(n) - returns n spaces
Example:
   > SELECT space(2) FROM src LIMIT 1;
  '  '
PREHOOK: query: EXPLAIN SELECT
  space(10),
  space(0),
  space(1),
  space(-1),
  space(-100)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN SELECT
  space(10),
  space(0),
  space(1),
  space(-1),
  space(-100)
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: '          ' (type: string), '' (type: string), ' ' (type: string), '' (type: string), '' (type: string)
            outputColumnNames: _col0, _col1, _col2, _col3, _col4
            Statistics: Num rows: 500 Data size: 215500 Basic stats: COMPLETE Column stats: COMPLETE
            ListSink

PREHOOK: query: SELECT
  length(space(10)),
  length(space(0)),
  length(space(1)),
  length(space(-1)),
  length(space(-100))
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT
  length(space(10)),
  length(space(0)),
  length(space(1)),
  length(space(-1)),
  length(space(-100))
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
10	0	1	0	0
PREHOOK: query: SELECT
  space(10),
  space(0),
  space(1),
  space(-1),
  space(-100)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT
  space(10),
  space(0),
  space(1),
  space(-1),
  space(-100)
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####