ALTER TABLE `personal_access_list` CHANGE `sender_address` `sender_address` VARCHAR(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL; ALTER TABLE `personal_access_list` DROP PRIMARY KEY, ADD UNIQUE `recipient_sender` (`recipient_address`, `sender_address`) USING BTREE; ALTER TABLE `personal_access_list` ADD `id` INT NOT NULL AUTO_INCREMENT FIRST, ADD PRIMARY KEY (`id`);