presto-orc/src/main/java/io/prestosql/orc/metadata/statistics/IntegerStatistics.java/IntegerStatistics/addHash
class IntegerStatistics:    @Override
    public void addHash(StatisticsHasher hasher)
    {
        hasher.putOptionalLong(hasMinimum, minimum)
                .putOptionalLong(hasMaximum, maximum)
                .putOptionalLong(hasSum, sum);
    }