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

-- 向迁移历史表插入记录
INSERT INTO __MigrationsHistory (MigrationId, ProductVersion)
VALUES ('202508111126 wor_service_request', '1.0.0');