public function getTableName()
    {
        if ($this->table_exists === null && !in_array($this->table_name, $this->connection->getTableNames())) {
            $this->connection->execute('CREATE TABLE ' . $this->connection->escapeTableName($this->table_name) . ' (
                `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
                `migration` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
                `executed_at` datetime NOT NULL,
                PRIMARY KEY (`id`),
                UNIQUE KEY `migration` (`migration`),
                KEY `executed_on` (`executed_at`)
            ) ENGINE=InnoDB CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;');

            $this->table_exists = true;
        }

        return $this->table_name;
    }