PREHOOK: query: DESCRIBE FUNCTION greatest
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION greatest
POSTHOOK: type: DESCFUNCTION
greatest(v1, v2, ...) - Returns the greatest value in a list of values
PREHOOK: query: DESCRIBE FUNCTION EXTENDED greatest
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED greatest
POSTHOOK: type: DESCFUNCTION
greatest(v1, v2, ...) - Returns the greatest value in a list of values
Example:
  > SELECT greatest(2, 3, 1) FROM src LIMIT 1;
  3
PREHOOK: query: EXPLAIN
SELECT GREATEST('a', 'b', 'c'),
       GREATEST('C', 'a', 'B'),
       GREATEST('AAA', 'AaA', 'AAa'),
       GREATEST('A', 'AA', 'AAA'),
       GREATEST('11', '13', '12'),
       GREATEST('11', '2', '12'),
       GREATEST('01', '03', '02'),
       GREATEST('01', '1', '02'),
       GREATEST(null, 'b', 'c' ),
       GREATEST('a', null, 'c'),
       GREATEST('a', 'b', null ),
       GREATEST('a', null, null),
       GREATEST(null, 'b', null),
       GREATEST(cast(null as string), null, null)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN
SELECT GREATEST('a', 'b', 'c'),
       GREATEST('C', 'a', 'B'),
       GREATEST('AAA', 'AaA', 'AAa'),
       GREATEST('A', 'AA', 'AAA'),
       GREATEST('11', '13', '12'),
       GREATEST('11', '2', '12'),
       GREATEST('01', '03', '02'),
       GREATEST('01', '1', '02'),
       GREATEST(null, 'b', 'c' ),
       GREATEST('a', null, 'c'),
       GREATEST('a', 'b', null ),
       GREATEST('a', null, null),
       GREATEST(null, 'b', null),
       GREATEST(cast(null as string), null, null)
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: 'c' (type: string), 'a' (type: string), 'AaA' (type: string), 'AAA' (type: string), '13' (type: string), '2' (type: string), '03' (type: string), '1' (type: string), greatest(null,'b','c') (type: string), greatest('a',null,'c') (type: string), greatest('a','b',null) (type: string), greatest('a',null,null) (type: string), greatest(null,'b',null) (type: string), greatest(UDFToString(null),null,null) (type: string)
            outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6, _col7, _col8, _col9, _col10, _col11, _col12, _col13
            Statistics: Num rows: 500 Data size: 597500 Basic stats: COMPLETE Column stats: COMPLETE
            ListSink

PREHOOK: query: SELECT GREATEST('a', 'b', 'c'),
       GREATEST('C', 'a', 'B'),
       GREATEST('AAA', 'AaA', 'AAa'),
       GREATEST('A', 'AA', 'AAA'),
       GREATEST('11', '13', '12'),
       GREATEST('11', '2', '12'),
       GREATEST('01', '03', '02'),
       GREATEST('01', '1', '02'),
       GREATEST(null, 'b', 'c' ),
       GREATEST('a', null, 'c'),
       GREATEST('a', 'b', null ),
       GREATEST('a', null, null),
       GREATEST(null, 'b', null),
       GREATEST(cast(null as string), null, null)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT GREATEST('a', 'b', 'c'),
       GREATEST('C', 'a', 'B'),
       GREATEST('AAA', 'AaA', 'AAa'),
       GREATEST('A', 'AA', 'AAA'),
       GREATEST('11', '13', '12'),
       GREATEST('11', '2', '12'),
       GREATEST('01', '03', '02'),
       GREATEST('01', '1', '02'),
       GREATEST(null, 'b', 'c' ),
       GREATEST('a', null, 'c'),
       GREATEST('a', 'b', null ),
       GREATEST('a', null, null),
       GREATEST(null, 'b', null),
       GREATEST(cast(null as string), null, null)
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
c	a	AaA	AAA	13	2	03	1	c	c	b	a	b	NULL
PREHOOK: query: SELECT GREATEST(11, 13, 12),
       GREATEST(1, 13, 2),
       GREATEST(-11, -13, -12),
       GREATEST(1, -13, 2),
       GREATEST(null, 1, 2),
       GREATEST(1, null, 2),
       GREATEST(1, 2, null),
       GREATEST(cast(null as int), null, null)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT GREATEST(11, 13, 12),
       GREATEST(1, 13, 2),
       GREATEST(-11, -13, -12),
       GREATEST(1, -13, 2),
       GREATEST(null, 1, 2),
       GREATEST(1, null, 2),
       GREATEST(1, 2, null),
       GREATEST(cast(null as int), null, null)
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
13	13	-11	2	2	2	2	NULL
PREHOOK: query: SELECT GREATEST(11.4, 13.5, 12.2),
       GREATEST(1.0, 13.2, 2.0),
       GREATEST(-11.4, -13.1, -12.2),
       GREATEST(1.0, -13.3, 2.2),
       GREATEST(null, 1.1, 2.2),
       GREATEST(1.1, null, 2.2),
       GREATEST(1.1, 2.2, null),
       GREATEST(cast(null as double), null, null)
FROM src tablesample (1 rows)
PREHOOK: type: QUERY
PREHOOK: Input: default@src
#### A masked pattern was here ####
POSTHOOK: query: SELECT GREATEST(11.4, 13.5, 12.2),
       GREATEST(1.0, 13.2, 2.0),
       GREATEST(-11.4, -13.1, -12.2),
       GREATEST(1.0, -13.3, 2.2),
       GREATEST(null, 1.1, 2.2),
       GREATEST(1.1, null, 2.2),
       GREATEST(1.1, 2.2, null),
       GREATEST(cast(null as double), null, null)
FROM src tablesample (1 rows)
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
#### A masked pattern was here ####
13.5	13.2	-11.4	2.2	2.2	2.2	2.2	NULL