Selective inclusion of base connector columns in adapters

I may have asked for this before, so please delete if this is a duplicate. A common problem is that connectors often include a vast number of columns that you don't want or need surfaced to the adapter layer ... and the only remedy is to delete the attributes from the generated FIM MA schema. This does not prevent the generated LDIF from including these redundant columns, however, and they only come back again if you need to regenerate your FIM MA.