-- 在 Lastleg 所属库执行；只补充整托计租截止日，不改写既有费用、库存、冻结或资金流水。
-- 发布新服务前暂停仓租出库，取消未消费预占；旧比例费用的处理需按业务单核对后单独办理。
USE baiyue_lastleg;
SET @return_rent_ddl = (
  SELECT IF(EXISTS (
    SELECT 1 FROM information_schema.columns
    WHERE table_schema = DATABASE() AND table_name = 'll_storage_rent_lot' AND column_name = 'charged_days'
  ), 'SELECT 1',
  'ALTER TABLE ll_storage_rent_lot ADD COLUMN charged_days BIGINT NOT NULL DEFAULT 0 COMMENT ''退货原托已生成仓租的截止库龄天数，同一天不重复计费'' AFTER original_units')
);
PREPARE return_rent_statement FROM @return_rent_ddl;
EXECUTE return_rent_statement;
DEALLOCATE PREPARE return_rent_statement;