https://clickhouse-test-reports.s3.yandex.net/15348/34addcf61f653e50e493ff8d94fab015db91fa59/fuzzer/report.html#fail1
{
    return (data & KEY_METADATA_IS_DEFAULT_MASK) == KEY_METADATA_IS_DEFAULT_MASK;
}
void SSDComplexKeyCachePartition::Metadata::setDefault()
{
    data |= KEY_METADATA_IS_DEFAULT_MASK;
}
bool SSDComplexKeyCachePartition::Index::inMemory() const
{
    return (index & KEY_IN_MEMORY) == KEY_IN_MEMORY;
}
bool SSDComplexKeyCachePartition::Index::exists() const
{
    return index != NOT_EXISTS;
}
void SSDComplexKeyCachePartition::Index::setNotExists()
{
    index = NOT_EXISTS;
}
void SSDComplexKeyCachePartition::Index::setInMemory(const bool in_memory)
{
    index = (index & ~KEY_IN_MEMORY) | (static_cast<size_t>(in_memory) << KEY_IN_MEMORY_BIT);
}
size_t SSDComplexKeyCachePartition::Index::getAddressInBlock() const
{
    return index & INDEX_IN_BLOCK_MASK;
}
void SSDComplexKeyCachePartition::Index::setAddressInBlock(const size_t address_in_block)