presto-hive/src/main/java/io/prestosql/plugin/hive/parquet/ParquetPageSource.java/ParquetPageSource/close
class ParquetPageSource:    @Override
    public void close()
    {
        if (closed) {
            return;
        }
        closed = true;

        try {
            parquetReader.close();
        }
        catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    }