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'。
}
                
                if (!col_to)
                    throw Exception("No column to rollback", ErrorCodes::LOGICAL_ERROR);
                if (col_to->size() != old_rows)
                    col_to = col_to->cut(0, old_rows);
            }
        }
        catch (...)
        {
            
            std::terminate();
        }
        throw;
    }
}
class BufferSink : public SinkToStorage
{
public:
    explicit BufferSink(
        StorageBuffer & storage_,
        const StorageMetadataPtr & metadata_snapshot_)
        : SinkToStorage(metadata_snapshot_->getSampleBlock())
        , storage(storage_)
        , metadata_snapshot(metadata_snapshot_)
    {
        
        metadata_snapshot->check(getHeader(), true);
    }
    String getName() const override { return "BufferSink"; }