[Xapian-discuss] Incremental indexing

[Sym Roe]

On Thu, Mar 22, 2012 at 8:50 AM, Marios Titas <redneb8888 at gmail.com> wrote:
> document and include the album id as a value. When querying you would
> have to group the documents by the album id and return one result per
> group having a weight that would take into account the grouping. This
> has the additional advantage that you could also search for individual
> user reviews (i.e. w/o doing any grouping) as well as for albums.

Sorry to bring this up again, but can you explain why you can't use
set_collapse_key in this case?