realmQuery.distinct(), realmQuery.sort(), realmResults.sort()

user can now sort, and also us distinct. realmResults.distinct( field1, field2), or realmResults.distinct(field1).distinct(field2), do the same thing, as the result is finding realmModels which are unique having field1, and field2. This is what makes sense, but I also noticed Realm might behave a bit differently.

realmResults.sort(field1, field2), it is sorted in reverse order. First field2, and then field1. That's how it's done by Realm during testing I could confirm that is what happened.