CREATE TABLE `logs` ( `id` bigint(20) UNSIGNED NOT NULL, `user` bigint(20) UNSIGNED NOT NULL, `type` int(11) NOT NULL, `object_table` tinytext COLLATE utf8mb4_unicode_ci NOT NULL, `object_model` mediumtext COLLATE utf8mb4_unicode_ci NOT NULL, `object_id` bigint(20) UNSIGNED NOT NULL, `xdiff_old` longtext COLLATE utf8mb4_unicode_ci NOT NULL, `xdiff_new` longtext COLLATE utf8mb4_unicode_ci NOT NULL, `ts` bigint(20) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci; ALTER TABLE `logs` ADD PRIMARY KEY (`id`); ALTER TABLE `logs` MODIFY `id` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT; COMMIT;