Statistics
https://play.clickhouse.com/play?user=play#c2VsZWN0IAp0b1N0YXJ0T2ZIb3VyKGNoZWNrX3N0YXJ0X3RpbWUpIGFzIGQsCmNvdW50KCksICBncm91cFVuaXFBcnJheShwdWxsX3JlcXVlc3RfbnVtYmVyKSwgIGFueShyZXBvcnRfdXJsKQpmcm9tIGNoZWNrcyB3aGVyZSAnMjAyMi0wNi0wMScgPD0gY2hlY2tfc3RhcnRfdGltZSBhbmQgdGVzdF9uYW1lIGxpa2UgJyUwMjQ5MV9wYXJ0X2xvZ19oYXNfdGFibGVfdXVpZCUnIGFuZCB0ZXN0X3N0YXR1cyBpbiAoJ0ZBSUwnLCAnRkxBS1knKSBncm91cCBieSBkIG9yZGVyIGJ5IGQgZGVzYw==

Some times there are not output from requests.
}
            modifyPartState(it, DataPartState::Deleting);
            part_to_delete = *it;
        }
        else
        {
            part_to_delete = std::move(part);
        }
    }
    try
    {
        preparePartForRemoval(part_to_delete)->remove();
    }
    catch (...)
    {
        rollbackDeletingParts({part_to_delete});
        throw;
    }
    removePartsFinally({part_to_delete});
    LOG_TRACE(log, "Removed part {}", part_to_delete->name);
}
size_t MergeTreeData::getTotalActiveSizeInBytes() const
{
    return total_active_size_bytes.load(std::memory_order_acquire);
}
size_t MergeTreeData::getTotalActiveSizeInRows() const
{
    return total_active_size_rows.load(std::memory_order_acquire);
}
size_t MergeTreeData::getPartsCount() const