presto-orc/src/main/java/io/prestosql/orc/metadata/statistics/ColumnStatistics.java/ColumnStatistics/addHash
class ColumnStatistics:    @Override
    public void addHash(StatisticsHasher hasher)
    {
        hasher.putOptionalLong(hasNumberOfValues, numberOfValues)
                .putOptionalHashable(booleanStatistics)
                .putOptionalHashable(integerStatistics)
                .putOptionalHashable(doubleStatistics)
                .putOptionalHashable(stringStatistics)
                .putOptionalHashable(dateStatistics)
                .putOptionalHashable(decimalStatistics)
                .putOptionalHashable(binaryStatistics)
                .putOptionalHashable(bloomFilter);
    }