cartodb-postgresql/scripts-available/CDB_DateToNumber.sql
2015-10-05 13:32:03 +02:00

32 lines
747 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' STABLE STRICT;
-- 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' STABLE STRICT;