protected function getConnectionOptions(): array
	{
		return $this->options +
		[
			PDO::ATTR_PERSISTENT         => $this->usePersistentConnection,
			PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
			PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_OBJ,
			PDO::ATTR_STRINGIFY_FETCHES  => false,
			PDO::ATTR_EMULATE_PREPARES   => false,
		];
	}