text: CREATE TABLE IF NOT EXISTS `trip_plan_item` (
    `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
    `trip_plan_id` INT UNSIGNED NOT NULL,
    `item_order` INT UNSIGNED NOT NULL,
    `title` VARCHAR(255) NOT NULL,
    `description` TEXT NOT NULL,
    `price` INT UNSIGNED NOT NULL,
    `start_at` DATETIME NOT NULL,
    `finish_at` DATETIME NOT NULL,
    PRIMARY KEY (`id`),
    UNIQUE INDEX `trip_plan_and_item_order_UNIQUE` (`trip_plan_id` ASC, `item_order` ASC) VISIBLE,
    CONSTRAINT `fk_trip_plan_item_trip_plan`
      FOREIGN KEY (`trip_plan_id`)
      REFERENCES `trip_plan` (`id`)
      ON DELETE CASCADE
      ON UPDATE NO ACTION
  );
  