ALTER TABLE `sckw_ng_contract`.`kwc_contract_logistics`
    ADD COLUMN `transport_biz_type` tinyint NOT NULL DEFAULT 1 COMMENT '业务合同类型 1贸易运输 2原矿转运' AFTER `common_price`,
    ADD COLUMN `allowed_error` decimal(12, 4) NULL COMMENT '允许误差(千分比数值，如5表示5‰)，原矿转运时必填' AFTER `transport_biz_type`;
