begin
        insert into ec_product_links_audit (
        product_a, product_b,
        last_modified,
        last_modifying_user, modified_ip_address
        ) values (
        old.product_a, old.product_b,
        old.last_modified,
        old.last_modifying_user, old.modified_ip_address      
        );
	return new;
end;