-- 样本特殊标记与特殊说明 -- 2026-07-01 ALTER TABLE `biz_protocol_sample` ADD COLUMN `is_special` tinyint(4) NOT NULL DEFAULT 0 COMMENT '是否特殊样本:0否 1是' AFTER `storage_expire_date`, ADD COLUMN `special_remark` varchar(256) DEFAULT NULL COMMENT '特殊说明' AFTER `is_special`; ALTER TABLE `biz_research_donation_sample` ADD COLUMN `is_special` tinyint(4) NOT NULL DEFAULT 0 COMMENT '是否特殊样本:0否 1是' AFTER `storage_expire_date`, ADD COLUMN `special_remark` varchar(256) DEFAULT NULL COMMENT '特殊说明' AFTER `is_special`;