alter table product_model add product_code varchar(255) null comment '产品编码'; alter table process_route add process_route_code varchar(255) null comment '工艺路线编码'; alter table procurement_record_storage add product_model_id bigint null comment '产品规格id'; alter table procurement_record_out add product_model_id bigint null comment '产品规格id'; alter table quality_inspect add product_model_id bigint null comment '产品规格id';