PREHOOK: query: DESCRIBE FUNCTION ascii
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION ascii
POSTHOOK: type: DESCFUNCTION
ascii(str) - returns the numeric value of the first character of str
PREHOOK: query: DESCRIBE FUNCTION EXTENDED ascii
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED ascii
POSTHOOK: type: DESCFUNCTION
ascii(str) - returns the numeric value of the first character of str
Returns 0 if str is empty or NULL if str is NULL
Example:
  > SELECT ascii('222') FROM src LIMIT 1;  50
  > SELECT ascii(2) FROM src LIMIT 1;
  50
PREHOOK: query: EXPLAIN SELECT
  ascii('Facebook'),
  ascii(''),
  ascii('!')
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN SELECT
  ascii('Facebook'),
  ascii(''),
  ascii('!')
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: 70 (type: int), 0 (type: int), 33 (type: int)
            outputColumnNames: _col0, _col1, _col2
            Statistics: Num rows: 500 Data size: 6000 Basic stats: COMPLETE Column stats: COMPLETE
            ListSink

PREHOOK: query: SELECT
  ascii('Facebook'),
  ascii(''),
  ascii('!')
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT
  ascii('Facebook'),
  ascii(''),
  ascii('!')
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
70	0	33