PREHOOK: query: DESCRIBE FUNCTION minute
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION minute
POSTHOOK: type: DESCFUNCTION
minute(date) - Returns the minute of date
PREHOOK: query: DESCRIBE FUNCTION EXTENDED minute
PREHOOK: type: DESCFUNCTION
POSTHOOK: query: DESCRIBE FUNCTION EXTENDED minute
POSTHOOK: type: DESCFUNCTION
minute(date) - Returns the minute of date
date is a string in the format of 'yyyy-MM-dd HH:mm:ss' or 'HH:mm:ss'.
Example:
   > SELECT minute('2009-07-30 12:58:59') FROM src LIMIT 1;
  58
  > SELECT minute('12:58:59') FROM src LIMIT 1;
  58