cartodb-postgresql/scripts-available/CDB_DateToNumber.sql

16 lines
371 B
PL/PgSQL

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