I have heard that we should have the lowest level in the dimension set to unique
1) My question is what would happen if i dont set it to unique
2) And, why set only the lowest level as unique
http://www-01.ibm.com/support/docview.wss?uid=swg21496948&aid=1
This seemed for FM. Is it relevant to Transformer too?
http://www.biprofessional.com/2011/02/cognos-transformer-and-category-uniqueness-part-1/