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'。
to = from;
        }
        else
        {
            for (size_t column_no = 0, columns = to.columns(); column_no < columns; ++column_no)
            {
                const IColumn & col_from = *from.getByPosition(column_no).column.get();
                last_col = IColumn::mutate(std::move(to.getByPosition(column_no).column));
                last_col->insertRangeFrom(col_from, 0, rows);
                to.getByPosition(column_no).column = std::move(last_col);
            }
        }
    }
    catch (...)
    {
        
        
        
        MemoryTracker::BlockerInThread temporarily_ignore_any_memory_limits(VariableContext::Global);
        try
        {
            for (size_t column_no = 0, columns = to.columns(); column_no < columns; ++column_no)
            {
                ColumnPtr & col_to = to.getByPosition(column_no).column;
                
                if (!col_to)
                {
                    col_to = std::move(last_col);
                    
                    last_col = {};