ALTER TABLE `map_passenger_flow` ADD COLUMN `name` VARCHAR(50) NOT NULL DEFAULT '默认' COMMENT '客流数据描述名称' AFTER `map_id`, ADD COLUMN `initial` TINYINT(1) NOT NULL DEFAULT 1 COMMENT '初始默认数据' AFTER `trip_pf`; ALTER TABLE `draft_ibp` ALTER `station_code` DROP DEFAULT; ALTER TABLE `draft_ibp` CHANGE COLUMN `station_code` `station_code` VARCHAR(32) NULL COMMENT '车站编号' COLLATE 'utf8_general_ci' AFTER `map_id`; ALTER TABLE `ibp` ALTER `station_code` DROP DEFAULT; ALTER TABLE `ibp` CHANGE COLUMN `station_code` `station_code` VARCHAR(32) NULL COMMENT '车站编号' COLLATE 'utf8_general_ci' AFTER `map_id`;