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'。
{
    return lockImpl(true);
}
std::unique_lock<std::mutex> StorageBuffer::Buffer::lockForWriting() const
{
    return lockImpl(false);
}
std::unique_lock<std::mutex> StorageBuffer::Buffer::tryLock() const
{
    std::unique_lock lock(mutex, std::try_to_lock);
    return lock;
}
std::unique_lock<std::mutex> StorageBuffer::Buffer::lockImpl(bool read) const
{
    std::unique_lock lock(mutex, std::defer_lock);
    Stopwatch watch(CLOCK_MONOTONIC_COARSE);
    lock.lock();
    UInt64 elapsed = watch.elapsedMilliseconds();
    if (read)
        ProfileEvents::increment(ProfileEvents::StorageBufferLayerLockReadersWaitMilliseconds, elapsed);
    else
        ProfileEvents::increment(ProfileEvents::StorageBufferLayerLockWritersWaitMilliseconds, elapsed);
    return lock;
}
StorageBuffer::StorageBuffer(
    const StorageID & table_id_,
    const ColumnsDescription & columns_,
    const ConstraintsDescription & constraints_,
    const String & comment,