text: -- t_order 订单表--
  create table t_order (
      id bigint primary key,
      buyer_id bigint comment '买方ID',
      seller_id bigint comment '卖方ID',
      txn_amt double(6,2) comment '金额',
      txn_num int comment '商品笔数',
      deliver_status int comment '订单状态',
      payment_status int comment '支付状态',
      create_dt datetime,
      modify_dt datetime
  
  )
  
  --t_order_detail 订单明细表 --
  create table t_order_detail (
      id bitgint primary key,
      order_id bigint,
      goods_id bigint,
      goods_name varchar(50) comment '商品名称',
      goods_description varchar(200) comment '商品介绍',
      price double(6,2) comment '金额',
      create_dt datetime,
      modify_dt datetime
  )