Change the table comment after created the table is not supported now?
Like mysql : ALTER TABLE [tableName] COMMNET [comment]; 
The sql "ALTER TABLE `system`.tables UPDATE Comment='test' WHERE NAME='t1';" also not supported!!!
My version is '21.9.4.35'。
{
    const std::string & disk_path = disk->getPath();
    const std::string key(disk_path + name);
    auto create_node_data = [&]()
    {
        ClusterNodeData data;
        data.connection_pool = StorageDistributedDirectoryMonitor::createPool(name, *this);
        data.directory_monitor = std::make_unique<StorageDistributedDirectoryMonitor>(
            *this, disk, relative_data_path + name,
            data.connection_pool,
            monitors_blocker,
            getContext()->getDistributedSchedulePool());
        return data;
    };
    
    if (startup)
    {
        auto tmp_node_data = create_node_data();
        std::lock_guard lock(cluster_nodes_mutex);
        auto & node_data = cluster_nodes_data[key];
        assert(!node_data.directory_monitor);
        node_data = std::move(tmp_node_data);
        return *node_data.directory_monitor;
    }
    else
    {
        std::lock_guard lock(cluster_nodes_mutex);
        auto & node_data = cluster_nodes_data[key];
        if (!node_data.directory_monitor)
        {