presto-orc/src/main/java/io/prestosql/orc/writer/FloatColumnWriter.java/FloatColumnWriter/getColumnStripeStatistics
class FloatColumnWriter:    @Override
    public Map<OrcColumnId, ColumnStatistics> getColumnStripeStatistics()
    {
        checkState(closed);
        return ImmutableMap.of(columnId, ColumnStatistics.mergeColumnStatistics(rowGroupColumnStatistics));
    }