For some reasons when we delete a MergeTree Part in atomic way something may go wrong - and leave the `delete_tmp_*` folder or it's part on disk. This may lead to a disk space consumption over time.

It's suggested to delete this folders at least at server start-up. Current solution with `clearOldTemporaryDirectories()` doesn't work because this method is called periodically from a thread without any locks or advisory on folders - it may cause the race conditions.
if (!part->minmax_idx->initialized)
            throw Exception("Found a non-empty part with uninitialized minmax_idx. It's a bug", ErrorCodes::LOGICAL_ERROR);
        filter_column_data.emplace_back();
        if (max_block_numbers_to_read)
        {
            auto blocks_iterator = max_block_numbers_to_read->find(part->info.partition_id);
            if (blocks_iterator == max_block_numbers_to_read->end() || part->info.max_block > blocks_iterator->second)
                continue;
        }
        if (minmax_idx_condition
            && !minmax_idx_condition->checkInHyperrectangle(part->minmax_idx->hyperrectangle, minmax_columns_types).can_be_true)
            continue;
        if (partition_pruner)
        {
            if (partition_pruner->canBePruned(*part))
                continue;
        }
        if (need_primary_key_max_column && !part->index_granularity.hasFinalMark())
        {
            normal_parts.push_back(part);
            continue;
        }
        real_parts.push_back(part);
        filter_column_data.back() = 1;
    }
    if (real_parts.empty())
        return {};
    FilterDescription filter(*filter_column);
    for (size_t i = 0; i < virtual_columns_block.columns(); ++i)
    {