presto-orc/src/main/java/io/prestosql/orc/metadata/OrcMetadataReader.java/OrcMetadataReader/toBinaryStatistics
class OrcMetadataReader:    private static BinaryStatistics toBinaryStatistics(OrcProto.BinaryStatistics binaryStatistics)
    {
        if (!binaryStatistics.hasSum()) {
            return null;
        }

        return new BinaryStatistics(binaryStatistics.getSum());
    }