I am reading clickhouse mutation code. In StorageMergeTree->selectPartsToMutate() function, there is a check 
`if (current_ast_elements + commands_size >= max_ast_elements)
                break;`

I think if there are many mutations then the check result will be true, so that it will skip the remaining mutations.
But the new part's mutation is set to the last one in mutation map, and it does not apply the remaining mutations actually.
`new_part_info.mutation = current_mutations_by_version.rbegin()->first;`

Then the new part will miss the remaining mutations in future mutation job.

I think it's wrong here. Am I right?

If it is right, I will submit a PR 

UInt64 log_max_index;
        UInt64 log_pointer;
        UInt64 absolute_delay;
        UInt8 total_replicas;
        UInt8 active_replicas;
        String last_queue_update_exception;
        
        String zookeeper_exception;
        std::unordered_map<std::string, bool> replica_is_active;
    };
    
    void getStatus(Status & res, bool with_zk_fields = true);
    using LogEntriesData = std::vector<ReplicatedMergeTreeLogEntryData>;
    void getQueue(LogEntriesData & res, String & replica_name);
    std::vector<PartMovesBetweenShardsOrchestrator::Entry> getPartMovesBetweenShardsEntries();
    
    time_t getAbsoluteDelay() const;
    
    
    
    void getReplicaDelays(time_t & out_absolute_delay, time_t & out_relative_delay);
    
    void enqueuePartForCheck(const String & part_name, time_t delay_to_check_seconds = 0)
    {
        part_check_thread.enqueuePart(part_name, delay_to_check_seconds);
    }
    CheckResults checkData(const ASTPtr & query, ContextPtr context) override;
    
    bool canUseAdaptiveGranularity() const override;
    int getMetadataVersion() const { return metadata_version; }