Nette\Caching\Storages\SQLiteStorage::__construct PHP Method

    public function __construct($path)
    {
        if ($path !== ':memory:' && !is_file($path)) {
            touch($path);
            // ensures ordinary file permissions
        }
        $this->pdo = new \PDO('sqlite:' . $path);
        $this->pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
        $this->pdo->exec('
			PRAGMA foreign_keys = ON;
			CREATE TABLE IF NOT EXISTS cache (
				key BLOB NOT NULL PRIMARY KEY,
				data BLOB NOT NULL,
				expire INTEGER,
				slide INTEGER
			);
			CREATE TABLE IF NOT EXISTS tags (
				key BLOB NOT NULL REFERENCES cache ON DELETE CASCADE,
				tag BLOB NOT NULL
			);
			CREATE INDEX IF NOT EXISTS cache_expire ON cache(expire);
			CREATE INDEX IF NOT EXISTS tags_key ON tags(key);
			CREATE INDEX IF NOT EXISTS tags_tag ON tags(tag);
			PRAGMA synchronous = OFF;
		');
    }