: It seems that the only way to do it would be to collapse the entire : result set first, which entails loading the stored fields of the : whole docset. : : That doesn't seem particularly feasible to do exactly.
I haven't really been following this conversation that closely, but assuming what you guys are talking about is desirable, it seems like one way to accomplish it might be to make it operate on the *indexed* values for a field ... wouldn't iterating over each doc, and using the FieldCache+TermDocs make it very efficient to find all the docs that have the same indexed value as the current one? -Hoss
