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Posted to solr-user@lucene.apache.org by "Diego Ceccarelli (BLOOMBERG/ LONDON)" <dc...@bloomberg.net> on 2017/05/11 17:28:14 UTC

Support RankQuery in grouping

Hi All, 
At the moment RankQueries [1]  are not supported when you perform grouping: 
if you perform a ReRankQuery and ask for the groups, reranking will be ignored in the scoring. 
In SOLR-8776, I added support for ReRankQueries in grouping and I opened a PR on github [2]. 
ReRankQueries are now supported in standalone and distribute mode, and I changed 
the logic to rerank groups and not only documents (see the Jira item [3] for more details). 

IMO the patch is now quite complete and I've working unit tests, so I was wondering if someone could review it :) 
Thanks,
Diego

[1] https://cwiki.apache.org/confluence/display/solr/Query+Re-Ranking   
[2] https://github.com/apache/lucene-solr/pull/162
[3] https://issues.apache.org/jira/browse/SOLR-8776