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'。
SelectQueryOptions(processed_stage).analyze()).buildQueryPipeline());
        pipe.addInterpreterContext(modified_context);
        return pipe;
    }
    if (!modified_select.final() && storage->needRewriteQueryWithFinal(real_column_names))
    {
        
        
        modified_select.setFinal();
    }
    auto storage_stage
        = storage->getQueryProcessingStage(modified_context, QueryProcessingStage::Complete, metadata_snapshot, modified_query_info);
    if (processed_stage <= storage_stage)
    {
        
        if (real_column_names.empty())
            real_column_names.push_back(ExpressionActions::getSmallestColumn(metadata_snapshot->getColumns().getAllPhysical()));
        pipe = storage->read(
            real_column_names,
            metadata_snapshot,
            modified_query_info,
            modified_context,
            processed_stage,
            max_block_size,
            UInt32(streams_num));
    }
    else if (processed_stage > storage_stage)
    {
        modified_select.replaceDatabaseAndTable(database_name, table_name);