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'。
{
        auto interpreter = InterpreterSelectQuery(
                query_info.query, local_context, std::move(pipe_from_buffers),
                SelectQueryOptions(processed_stage));
        interpreter.buildQueryPlan(buffers_plan);
    }
    else
    {
        if (query_info.prewhere_info)
        {
            auto actions_settings = ExpressionActionsSettings::fromContext(local_context);
            if (query_info.prewhere_info->alias_actions)
            {
                pipe_from_buffers.addSimpleTransform([&](const Block & header)
                {
                    return std::make_shared<ExpressionTransform>(
                        header,
                        std::make_shared<ExpressionActions>(query_info.prewhere_info->alias_actions, actions_settings));
                });
            }
            if (query_info.prewhere_info->row_level_filter)
            {
                pipe_from_buffers.addSimpleTransform([&](const Block & header)
                {
                    return std::make_shared<FilterTransform>(
                            header,
                            std::make_shared<ExpressionActions>(query_info.prewhere_info->row_level_filter, actions_settings),
                            query_info.prewhere_info->row_level_column_name,
                            false);
                });