create table bt_refund_record ( id bigint(20) not null comment '主键', order_id bigint(20) not null comment '订单ID', refund_type char(1) not null comment '退款类型: 0 -> 自动退款, 1 -> 人工退款', refund_reason varchar(200) comment '退款原因', refund_amount decimal(20,2) not null comment '退款金额', create_time datetime not null comment '创建时间', create_user bigint(20) not null comment '创建人', update_time datetime not null comment '修改时间', update_user bigint(20) not null comment '修改人', primary key (id) ); alter table bt_refund_record comment '退款记录';