https://issues.apache.org/jira/browse/SOLR-4774




On Fri, Apr 26, 2013 at 6:30 AM, Jack Krupansky <j...@basetechnology.com>wrote:

> Sure, but they are completely different conceptual models of faceting -
> Solr is dynamic, based on the actual data for the hierarchy, while Lucene
> is static, based on a predefined taxonomy that must be meticulously created
> before any data is added.
>
> Solr answers the question: what structure does your data have, while
> Lucene answers the question how does your data fit into a predefined
> structure. Both are valid and valuable questions, but they are still rather
> distinct.
>
> Yes, Solr should provide support for static facet taxonomies, but what
> exactly that would look like... has not even been proposed yet, yet alone
> as simple as "facet.lucene=true".
>
> OTOH, maybe most of the work may be simply to add "taxonomy management" to
> Solr (as a passthrough to the Lucene features), and then maybe a lot of the
> existing Solr facet parameters simply need parallel Lucene-oriented
> implementations.
>
> But, the other half of Solr facets is how filter queries are used for
> selecting facets. That's all done at the application level, so it can't be
> "hidden" from the app so easily. Maybe a new Solr facet filter API can be
> developed that can then in turn have Solr facet vs. Lucene facet
> implementations. Or, maybe a new dynamic facet Lucene API could be added as
> well, so that Solr facets in fact become a passthrough as well.
>
> Still, it would be good to support Lucene facets in Solr. Maybe that could
> be one of the key turning points for what defines Lucene/Solr 5.0.
>
> Is there a Jira for this? I don't recall one.
>
> -- Jack Krupansky
>
> -----Original Message----- From: William Bell
> Sent: Friday, April 26, 2013 4:01 AM
> To: solr-user@lucene.apache.org
> Subject: Lucene native facets
>
>
> Since facets are now included in Lucene, why don't we add a pass through
> from Solr? The current facet code can live on but we could create new param
> like facet.lucene=true?
>
> Seems like a great enhancement !
>
>
> --
> Bill Bell
> billnb...@gmail.com
> cell 720-256-8076
>



-- 
Bill Bell
billnb...@gmail.com
cell 720-256-8076

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