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 

"Replica doesn't have part " + added_part.second
                            + " which was successfully written to quorum of other replicas."
                              " Send query to another replica or disable 'select_sequential_consistency' setting.",
                        ErrorCodes::REPLICA_IS_NOT_IN_QUORUM);
            for (const auto & max_block : part_with_quorum.getMaxInsertedBlocks())
                max_added_blocks[max_block.first] = max_block.second;
        }
    }
    return max_added_blocks;
}
void StorageReplicatedMergeTree::read(
    QueryPlan & query_plan,
    const Names & column_names,
    const StorageMetadataPtr & metadata_snapshot,
    SelectQueryInfo & query_info,
    ContextPtr local_context,
    QueryProcessingStage::Enum processed_stage,
    const size_t max_block_size,
    const unsigned num_streams)
{
    
    const bool enable_parallel_reading = local_context->getClientInfo().collaborate_with_initiator;
    /** The `select_sequential_consistency` setting has two meanings:
    * 1. To throw an exception if on a replica there are not all parts which have been written down on quorum of remaining replicas.
    * 2. Do not read parts that have not yet been written to the quorum of the replicas.
    * For this you have to synchronously go to ZooKeeper.
    */
    if (local_context->getSettingsRef().select_sequential_consistency)
    {
        auto max_added_blocks = std::make_shared<ReplicatedMergeTreeQuorumAddedParts::PartitionIdToMaxBlock>(getMaxAddedBlocks());