cartodb-postgresql/scripts-available/CDB_DateToNumber.sql
2017-11-13 09:35:20 +01:00

32 lines
785 B
PL/PgSQL

-- Convert timestamp to double precision
--
CREATE OR REPLACE FUNCTION CDB_DateToNumber(input timestamp)
RETURNS double precision AS $$
DECLARE output double precision;
BEGIN
BEGIN
SELECT extract (EPOCH FROM input) INTO output;
EXCEPTION WHEN OTHERS THEN
RETURN NULL;
END;
RETURN output;
END;
$$
LANGUAGE 'plpgsql' IMMUTABLE STRICT PARALLEL UNSAFE;
-- Convert timestamp with time zone to double precision
--
CREATE OR REPLACE FUNCTION CDB_DateToNumber(input timestamp with time zone)
RETURNS double precision AS $$
DECLARE output double precision;
BEGIN
BEGIN
SELECT extract (EPOCH FROM input) INTO output;
EXCEPTION WHEN OTHERS THEN
RETURN NULL;
END;
RETURN output;
END;
$$
LANGUAGE 'plpgsql' IMMUTABLE STRICT PARALLEL UNSAFE;