I want the exclude columns transformation to honor my request when I exclude column(s). I do not care if the data type changes. If I want the column excluded, then I do not want it in my data tables -- unless I specifically allow it. At the moment, if I load a data where a number of the columns data type changes, then the columns are automatically added to the data table. I do not want the behavior. It causes unnecessary interruption and extra work to exclude those columns again.