ALTER TABLE `contingency_plan_instance` MODIFY COLUMN `category` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '一级分类' AFTER `record_type`;
ALTER TABLE `contingency_plan_instance` MODIFY COLUMN `category` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '一级分类' AFTER `record_type`;