https://s3.amazonaws.com/clickhouse-test-reports/43986/7249ad407a0824d8c7651d8e03d4e68e1dea0813/stress_test__msan_.html
const MergeTreeData::DataPartPtr & part,
    WriteBuffer & out,
    int client_protocol_version,
    bool send_projections)
{
    
    MergeTreeData::DataPart::Checksums checksums = part->checksums;
    
    auto file_names_without_checksums = part->getFileNamesWithoutChecksums();
    for (const auto & file_name : file_names_without_checksums)
    {
        if (client_protocol_version < REPLICATION_PROTOCOL_VERSION_WITH_PARTS_DEFAULT_COMPRESSION
            && file_name == IMergeTreeDataPart::DEFAULT_COMPRESSION_CODEC_FILE_NAME)
            continue;
        checksums.files[file_name] = {};
    }
    MergeTreeData::DataPart::Checksums data_checksums;
    for (const auto & [name, projection] : part->getProjectionParts())
    {
        
        checksums.files.erase(name + ".proj");
        if (send_projections)
        {
            writeStringBinary(name, out);
            MergeTreeData::DataPart::Checksums projection_checksum = sendPartFromDisk(projection, out, client_protocol_version, false);
            data_checksums.addFile(name + ".proj", projection_checksum.getTotalSizeOnDisk(), projection_checksum.getTotalChecksumUInt128());
        }
        else if (part->checksums.has(name + ".proj"))
        {