ALTER TABLE `vn`.`chat` ADD statusNew enum('pending','sent','error','sending') DEFAULT 'pending' NOT NULL;

UPDATE `vn`.`chat`
    SET statusNew = 'pending'
WHERE status = 0;

UPDATE `vn`.`chat`
    SET statusNew = 'sent'
WHERE status = 1;

UPDATE `vn`.`chat`
    SET statusNew = 'error'
WHERE status = 2;

ALTER TABLE `vn`.`chat` CHANGE status status__ tinyint(1) DEFAULT NULL NULL;
ALTER TABLE `vn`.`chat` CHANGE statusNew status enum('pending','sent','error','sending') CHARACTER SET utf8mb3 COLLATE utf8mb3_unicode_ci DEFAULT 'pending' NOT NULL;
