USE yami_bbc;
ALTER TABLE `tz_qrcode_ticket`
    MODIFY COLUMN `ticket` VARCHAR(255)  CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL COMMENT '二维码ticket';

ALTER TABLE `tz_distribution_user`
    MODIFY COLUMN `card_no` VARCHAR(50)  CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL COMMENT '卡号';

