Hi Everyone, I need to use a RankQuery within a grouping [1]. I did some experiments with RerankQuery [2] and solr 4.10.2 and it seems that if you group on a field, the reranking query is completely ignored (on the cloud, and on a single instance). I would expect to see the results in each group reranked using the RerankQuery.
I had a look at the grouping code and documentation and, if I correctly understood, the grouping works in two steps: 1) first the top groups are retrieved 2) top documents for each group in the top groups are retrieved. I thought that the collector generated by a RankQuery could be injected in 2), i.e., for each group set a rerank collector... but I'm not sure if this solution is feasable since the collectors are set in Lucene (AbstractSecondPassGroupingCollector) and a RankQuery is defined in Solr... Any suggestion? Thanks, Diego [1] https://cwiki.apache.org/confluence/display/solr/Result+Grouping [2] https://cwiki.apache.org/confluence/display/solr/Query+Re-Ranking
