If they are defined, they can override table-level settings.
bool operator()(const MergeTreePartInfo & lhs, const DataPartPtr & rhs) const { return lhs < rhs->info; }
        bool operator()(const DataPartPtr & lhs, const DataPartPtr & rhs) const { return lhs->info < rhs->info; }
        bool operator()(const MergeTreePartInfo & lhs, const PartitionID & rhs) const { return lhs.partition_id < rhs.toUnderType(); }
        bool operator()(const PartitionID & lhs, const MergeTreePartInfo & rhs) const { return lhs.toUnderType() < rhs.partition_id; }
    };
    struct LessStateDataPart
    {
        using is_transparent = void;
        bool operator() (const DataPartStateAndInfo & lhs, const DataPartStateAndInfo & rhs) const
        {
            return std::forward_as_tuple(static_cast<UInt8>(lhs.state), lhs.info)
                   < std::forward_as_tuple(static_cast<UInt8>(rhs.state), rhs.info);
        }
        bool operator() (DataPartStateAndInfo info, const DataPartState & state) const
        {
            return static_cast<size_t>(info.state) < static_cast<size_t>(state);
        }
        bool operator() (const DataPartState & state, DataPartStateAndInfo info) const
        {
            return static_cast<size_t>(state) < static_cast<size_t>(info.state);
        }
        bool operator() (const DataPartStateAndInfo & lhs, const DataPartStateAndPartitionID & rhs) const
        {
            return std::forward_as_tuple(static_cast<UInt8>(lhs.state), lhs.info.partition_id)
                   < std::forward_as_tuple(static_cast<UInt8>(rhs.state), rhs.partition_id);
        }
        bool operator() (const DataPartStateAndPartitionID & lhs, const DataPartStateAndInfo & rhs) const