YEAR
Returns an integer that represents the year portion of the specified date.
	Returns an integer that represents the year portion of the specified date.
Syntax
YEAR( date )
Behavior type
- 
Immutable if thespecified date is a TIMESTAMP,DATE,VARCHAR, orINTERVAL
- 
Stable if the specified date is a TIMESTAMPTZ
Parameters
- date
- The date to process, one of the following data types: 
Examples
=> SELECT YEAR(CURRENT_DATE::DATE);
 YEAR
------
 2016
(1 row)