************************************ Data Type Functions and Operators ************************************ .. function:: to_bin(source int4) Returns the binary representation of integer. :param source: source value :rtype: text :example: .. code-block:: sql select to_bin(22); > 10110 .. function:: to_char(source int8, format text) Convert integer to string. :param source: source value :param format: format :rtype: text :example: .. code-block:: sql select to_char(125, '00999'); > 00125 .. function:: to_hex(source int4) Convert the argument to hexadecimal. :param source: source value :rtype: text :example: .. code-block:: sql select to_hex(15); > F