alter table org_cognizance add `record_time` DATETIME NULL COMMENT '高企申请时间' AFTER `year`; alter table patent_info add `record_time` DATETIME NULL COMMENT '专利申请时间' AFTER `confirm_state`; alter table organization_identity MODIFY COLUMN `listed` INT(1) NULL COMMENT '是否上市' , MODIFY COLUMN `listed_type` INT(1) NULL COMMENT '上市类型';