biar bawah saya yg nerusin

CREATE OR REPLACE FUNCTION bumadev_rds.trg_log_karyawan()
RETURNS trigger AS
$BODY$ DECLARE
col RECORD;
newValue text;
oldValue text;
isChange boolean;
BEGIN
IF TG_OP<>'DELETE' then
INSERT INTO bumadev_rds.log_karyawan
(
`log_time`,
`log_action`,
`id`,
`nama`,
`jabatan`,
`tanggal_masuk`
)
VALUES
(
now(),
TG_OP,
new.`id`,
new.`nama`,
new.`jabatan`,
new.`tanggal_masuk`
);
RETURN NEW;
ELSIF TG_OP='DELETE' then
INSERT INTO `bumadev_rds`.`log_karyawan`
(
`log_time`,
`log_action`,
`id`,
`nama`,
`jabatan`,
`tanggal_masuk`
)
VALUES
(
now(),
TG_OP,
old.`id`,
old.`nama`,
old.`jabatan`,
old.`tanggal_masuk`
);
RETURN OLD;
END IF;
RETURN NULL;
END;$BODY$
LANGUAGE plpgsql VOLATILE;

CREATE TRIGGER trg_log_karyawan
BEFORE INSERT OR UPDATE OR DELETE
ON `bumadev_rds`.`karyawan`
FOR EACH ROW
EXECUTE PROCEDURE bumadev_rds.trg_log_karyawan();

insert into bumadev_rds.karyawan (nama, jabatan, tanggal_masuk) values('Lisa', 'Manajer', '2014-12-12');