Custom Solr Facet Sort

[Satheesh Akkinepally <sa...@gmail.com>]

I posted this in solr-user group but perhaps, this is the right group to
ask questions on internals of solr?

Hello all,
If I want to plug in my own sorting for facets, what would be the best
approach. I know, out of the box, solr supports sort by facet count and
sort by alpha. I want to plug in my own sorting (say by relevancy). Is
there a way to do that? Where should I start with if I need to write a
Custom Facet Component?
Basically I want to plug the scores calculated in earlier steps for the
documents matched, do some kind of aggregation of the scores of the
documents that fall under a facet and use this aggregate score to rank the
facets than doing the facet ranking based on counts. I am assuming this is
something possible. Just looking for some guidance as to where to start with

Appreciate the responses from the community

Thanks

Re: Custom Solr Facet Sort

[Jan Høydahl <ja...@cominvent.com>]

Hi

Have you investigated JSON Facets, they can be sorted by a function, perhaps that helps solve your use case?

https://lucene.apache.org/solr/guide/7_3/json-facet-api.html#FacetSorting <https://lucene.apache.org/solr/guide/7_3/json-facet-api.html#FacetSorting> 

--
Jan Høydahl, search solution architect
Cominvent AS - www.cominvent.com

> 19. jul. 2018 kl. 00:05 skrev Satheesh Akkinepally <sa...@gmail.com>:
> 
> I posted this in solr-user group but perhaps, this is the right group to ask questions on internals of solr?
> 
> Hello all,
> If I want to plug in my own sorting for facets, what would be the best approach. I know, out of the box, solr supports sort by facet count and sort by alpha. I want to plug in my own sorting (say by relevancy). Is there a way to do that? Where should I start with if I need to write a Custom Facet Component? 
> Basically I want to plug the scores calculated in earlier steps for the documents matched, do some kind of aggregation of the scores of the documents that fall under a facet and use this aggregate score to rank the facets than doing the facet ranking based on counts. I am assuming this is something possible. Just looking for some guidance as to where to start with
> 
> Appreciate the responses from the community
> 
> Thanks
>