If they are defined, they can override table-level settings.
const MergeTreePartInfo & part_info, MergeTreeData::DataPartState state, DataPartsLock & ) const
{
    auto current_state_parts_range = getDataPartsStateRange(state);
    
    auto it = data_parts_by_state_and_info.lower_bound(DataPartStateAndInfo{state, part_info});
    if (it != current_state_parts_range.end())
    {
        if ((*it)->info == part_info)
            return *it;
        if ((*it)->info.contains(part_info))
            return *it;
    }
    if (it != current_state_parts_range.begin())
    {
        --it;
        if ((*it)->info.contains(part_info))
            return *it;
    }
    return nullptr;
}
void MergeTreeData::swapActivePart(MergeTreeData::DataPartPtr part_copy)