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Solr Dynamic Facets

From: Sudarshan K.
Sent on: Monday, June 4, 2012 12:35 PM
Hi Guys,

How do people deal with the lack of Solr support for Dynamic Facets? What I mean by that is, you need to tell Solr what facets to produce rather than Solr figuring that out for you. 

This JIRA is still unresolved: https://issues.apache.org/jira/browse/SOLR-247

My current thought is that I'd ask Solr to produce all possible facets (I've over 70) and then discard the ones where the top facet value has a count of 0. What are the performance implications of this?

On a related note, I haven't been able to figure out how is it that Solr does faceted search? Is it just a straightforward iterate over each document in the result set and increment the facet counts for each facet requested? 

-sudarshan

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