Nesukuria lenteles [innoDB]

CREATE TABLE `zones` (
  `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
  `x` INT  NOT NULL,
  `y` INT  NOT NULL,
  `pid` int(10) unsigned NOT NULL,
  `building` int UNSIGNED NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE `coo`(`x`, `y`),
  index `pid` (`pid`),
  INDEX `building`(`building`),
  CONSTRAINT `parkas` FOREIGN KEY `parkas` (`pid`)
    REFERENCES `parks` (`id`)
    ON DELETE SET NULL
    ON UPDATE CASCADE
)
ENGINE = InnoDB;

CREATE TABLE  `parks` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `title` varchar(32) NOT NULL,
  `user` int(10) unsigned NOT NULL,
  `x` int(10) unsigned NOT NULL,
  `y` int(11) NOT NULL,
  `money` bigint(20) unsigned NOT NULL,
  `point` int(10) unsigned NOT NULL,
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `guest` int(10) unsigned NOT NULL DEFAULT '0',
  `guestLocal` int(10) unsigned NOT NULL DEFAULT '0',
  `guestRemote` int(10) unsigned NOT NULL DEFAULT '0',
  `lastHit` int(10) unsigned NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `title` (`title`),
  UNIQUE KEY `cord` (`x`,`y`),
  KEY `user` (`user`),
  CONSTRAINT `new_fk_constraint` FOREIGN KEY (`user`) REFERENCES `users` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=36 DEFAULT CHARSET=utf8