text: CREATE TABLE `user` (
  	`id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  	`url_name` VARCHAR(100) NOT NULL,
  	`display_name` VARCHAR(100) NOT NULL,
  	`sig` VARCHAR(300) NULL DEFAULT NULL,
  	`age` INT NOT NULL DEFAULT 0,
  	`follower_c` VARCHAR(300) NULL DEFAULT NULL,
  	PRIMARY KEY (`id`)
  )
  CHARACTER SET=utf8mb4
  COLLATE=utf8mb4_unicode_ci
  ;
  