PREHOOK: query: DESCRIBE FUNCTION hour
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION hour
POSTHOOK: type: DESCFUNCTION
hour(date) - Returns the hour of date
PREHOOK: query: DESCRIBE FUNCTION EXTENDED hour
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED hour
POSTHOOK: type: DESCFUNCTION
hour(date) - Returns the hour of date
date is a string in the format of 'yyyy-MM-dd HH:mm:ss' or 'HH:mm:ss'.
Example:
   > SELECT hour('2009-07-30 12:58:59') FROM src LIMIT 1;
  12
  > SELECT hour('12:58:59') FROM src LIMIT 1;
  12
PREHOOK: query: EXPLAIN
SELECT hour('2009-08-07 13:14:15'), hour('13:14:15'), hour('2009-08-07')
FROM src WHERE key = 86
PREHOOK: type: QUERY
POSTHOOK: query: EXPLAIN
SELECT hour('2009-08-07 13:14:15'), hour('13:14:15'), hour('2009-08-07')
FROM src WHERE key = 86
POSTHOOK: type: QUERY
ABSTRACT SYNTAX TREE:
  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION hour '2009-08-07 13:14:15')) (TOK_SELEXPR (TOK_FUNCTION hour '13:14:15')) (TOK_SELEXPR (TOK_FUNCTION hour '2009-08-07'))) (TOK_WHERE (= (TOK_TABLE_OR_COL key) 86))))

STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 is a root stage

STAGE PLANS:
  Stage: Stage-1
    Map Reduce
      Alias -> Map Operator Tree:
        src 
          TableScan
            alias: src
            Filter Operator
              predicate:
                  expr: (key = 86)
                  type: boolean
              Select Operator
                expressions:
                      expr: hour('2009-08-07 13:14:15')
                      type: int
                      expr: hour('13:14:15')
                      type: int
                      expr: hour('2009-08-07')
                      type: int
                outputColumnNames: _col0, _col1, _col2
                File Output Operator
                  compressed: false
                  GlobalTableId: 0
                  table:
                      input format: org.apache.hadoop.mapred.TextInputFormat
                      output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat

  Stage: Stage-0
    Fetch Operator
      limit: -1


PREHOOK: query: SELECT hour('2009-08-07 13:14:15'), hour('13:14:15'), hour('2009-08-07')
FROM src WHERE key = 86
PREHOOK: type: QUERY
PREHOOK: Input: default@src
PREHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-35-39_543_9195128563381041113/-mr-10000
POSTHOOK: query: SELECT hour('2009-08-07 13:14:15'), hour('13:14:15'), hour('2009-08-07')
FROM src WHERE key = 86
POSTHOOK: type: QUERY
POSTHOOK: Input: default@src
POSTHOOK: Output: file:/tmp/sdong/hive_2011-02-10_17-35-39_543_9195128563381041113/-mr-10000
13	13	NULL