-- 回滚：20260620_pl_plan_transport_prefill.sql
-- 撤销 pl_plan 上误加的运输预选冗余字段（改由 pl_transport 草稿子表承载）
-- 执行前请备份；MySQL 5.7+

ALTER TABLE `pl_plan`
  DROP COLUMN `has_invoice`,
  DROP COLUMN `freight_price`,
  DROP COLUMN `transport_qty`,
  DROP COLUMN `freight_type`,
  DROP COLUMN `distance_km`,
  DROP COLUMN `carrier_id`;