CREATE OR REPLACE FUNCTION ifnull(value anyelement, null_ anyelement)

  RETURNS anyelement AS

$BODY$

SELECT util.ifnull($1, $2)

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  LANGUAGE sql IMMUTABLE

  COST 100;

COMMENT ON FUNCTION ifnull(anyelement, anyelement) IS '

wrapper that prevents views from getting dropped when the util schema is reinstalled

';

CREATE OR REPLACE FUNCTION is_castable(value text, ret_type_null anyelement)

  RETURNS boolean AS

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SELECT util.is_castable($1, $2)

$BODY$

  LANGUAGE sql IMMUTABLE

  COST 100;

COMMENT ON FUNCTION is_castable(text, anyelement) IS '

wrapper that prevents views from getting dropped when the util schema is reinstalled

';