AccountHub/database_upgrade/1.0.1_1.1.sql

CREATE TABLE IF NOT EXISTS `onetimekeys` (
  `key` VARCHAR(10) NOT NULL,
  `uid` INT(11) NOT NULL,
  `expires` DATETIME NOT NULL,
  INDEX `fk_onetimekeys_accounts1_idx` (`uid` ASC),
  PRIMARY KEY (`key`),
  UNIQUE INDEX `key_UNIQUE` (`key` ASC),
  CONSTRAINT `fk_onetimekeys_accounts1`
    FOREIGN KEY (`uid`)
    REFERENCES `accounthub`.`accounts` (`uid`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB
DEFAULT CHARACTER SET = utf8;

SET FOREIGN_KEY_CHECKS = 0;
ALTER TABLE `groups`
CHANGE COLUMN `groupid` `groupid` INT(11) NOT NULL AUTO_INCREMENT;
SET FOREIGN_KEY_CHECKS = 1;

ALTER TABLE `accounts`
ADD COLUMN `pin` VARCHAR(10) NULL DEFAULT NULL AFTER `authsecret`;