添加删除优惠政策的方法

ship-module-trade/ship-module-trade-biz/src/main/resources/mapper/orderpolicy/OrderPolicyMapper.xml

@@ -20,4 +20,8 @@
         GROUP BY
             policy_id
     </select>
+
+    <delete id="deleteAllByOrderId">
+        delete from trade_order_policy where order_id=#{orderId}
+    </delete>
 </mapper>