presto-orc/src/main/java/io/prestosql/orc/writer/LongColumnWriter.java/LongColumnWriter/reset
class LongColumnWriter:    @Override
    public void reset()
    {
        closed = false;
        dataStream.reset();
        presentStream.reset();
        rowGroupColumnStatistics.clear();
        statisticsBuilder = statisticsBuilderSupplier.get();
    }