ALTER TABLE public.med_medication_request ADD sign_code varchar(50) DEFAULT '' NULL;
	COMMENT ON COLUMN public.med_medication_request.sign_code IS '签发编码';


-- 向迁移历史表插入记录
INSERT INTO __MigrationsHistory (MigrationId, ProductVersion)
VALUES ('202508110809 med_medication_request', '1.0.0');