FAQ
Hi Joel,

This is related to another thread on function query matching (
http://lucene.472066.n3.nabble.com/Function-query-matching-td4099807.html#a4105513).
The patch in SOLR-4465 will allow me to extend TopDocsCollector and perform
the 'scale' function on only the documents matching the main dismax query.
As you mention, it is a slightly intrusive design and requires that I
manage my own PriorityQueue (and a local duplicate of HitQueue), but should
work. I think a better design would hide the PQ from the plugin.

Thanks,
Peter

On Sun, Dec 8, 2013 at 5:32 PM, Joel Bernstein wrote:

Hi Peter,

I've been meaning to revisit configurable ranking collectors, but I haven't
yet had a chance. It's on the shortlist of things I'd like to tackle
though.


On Fri, Dec 6, 2013 at 4:17 PM, Peter Keegan wrote:

I looked at SOLR-4465 and SOLR-5045, where it appears that there is a goal
to be able to do custom sorting and ranking in a PostFilter. So far, it
looks like only custom aggregation can be implemented in PostFilter (5045).
Custom sorting/ranking can be done in a pluggable collector (4465), but
this patch is no longer in dev.

Is there any other dev. being done on adding custom sorting (after
collection) via a plugin?

Thanks,
Peter


--
Joel Bernstein
Search Engineer at Heliosearch

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