PREHOOK: query: DESCRIBE FUNCTION split
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION split
POSTHOOK: type: DESCFUNCTION
split(str, regex) - Splits str around occurances that match regex
PREHOOK: query: DESCRIBE FUNCTION EXTENDED split
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED split
POSTHOOK: type: DESCFUNCTION
split(str, regex) - Splits str around occurances that match regex
Example:
  > SELECT split('oneAtwoBthreeC', '[ABC]') FROM src LIMIT 1;
  ["one", "two", "three"]
PREHOOK: query: EXPLAIN SELECT 
  split('a b c', ' '),
  split('oneAtwoBthreeC', '[ABC]'),
  split('', '.'),
  split(50401020, 0)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN SELECT 
  split('a b c', ' '),
  split('oneAtwoBthreeC', '[ABC]'),
  split('', '.'),
  split(50401020, 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: split('a b c', ' ') (type: array<string>), split('oneAtwoBthreeC', '[ABC]') (type: array<string>), split('', '.') (type: array<string>), split(50401020, 0) (type: array<string>)
            outputColumnNames: _col0, _col1, _col2, _col3
            Statistics: Num rows: 500 Data size: 0 Basic stats: PARTIAL Column stats: COMPLETE
            ListSink

PREHOOK: query: SELECT 
  split('a b c', ' '),
  split('oneAtwoBthreeC', '[ABC]'),
  split('', '.'),
  split(50401020, 0)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT 
  split('a b c', ' '),
  split('oneAtwoBthreeC', '[ABC]'),
  split('', '.'),
  split(50401020, 0)
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
["a","b","c"]	["one","two","three",""]	[""]	["5","4","1","2",""]