create table t_method_arg (
	arg_id		bigint auto_increment primary key not null,
	method_id		integer not null references t_method(method_id),
	type_id		tinyint not null references t_type(type_id),
	name		varchar(64) not null,
	idx			tinyint not null,

	index (arg_id),
	unique (arg_id),

	index (method_id)
);