alter table `ecw_order_item` add column `discount_clearance_fee_price` decimal(15,2) DEFAULT '0.00' COMMENT '清关费单价优惠金额';
alter table `ecw_order_item` add column `discount_clearance_fee_total_price` decimal(15,2) DEFAULT '0.00' COMMENT '清关费单价优惠总金额';
alter table `ecw_order_item` add column `discount_freight_price` decimal(15,2) DEFAULT '0.00' COMMENT '运费单价优惠金额';
alter table `ecw_order_item` add column `discount_freight_total_price` decimal(15,2) DEFAULT '0.00' COMMENT '运费单价优惠总金额';
alter table `ecw_order_item` add column `is_priced` bit(1) DEFAULT 0 COMMENT '是否已定价';