cartodb-postgresql/scripts-available/CDB_StringToDate.sql

20 lines
439 B
PL/PgSQL

-- Convert string to date
--
CREATE OR REPLACE FUNCTION CDB_StringToDate(input character varying)
RETURNS date AS $$
DECLARE output DATE DEFAULT NULL;
BEGIN
BEGIN
output := input::date;
EXCEPTION WHEN OTHERS THEN
BEGIN
SELECT to_timestamp(input::integer) INTO output;
EXCEPTION WHEN OTHERS THEN
RETURN NULL;
END;
END;
RETURN output;
END;
$$
LANGUAGE 'plpgsql' STABLE STRICT;