Ok thank you very much for clearing that up a little. I think another reason I was confused was that the wiki page for grouping was based around the original field collapsing plan at the time which led me to the jira and hence the patch files, rant over!
Perhaps you can help to clarify if the current grouping changes work with solrj? In QueryResponse.setResponse() there is a loop which builds up the results object, but has no check at present for "grouped" in the NamedList, so the solrj client gets no results back when searching with grouping parameters. I assume I can add this on my local working copy and all will be well? -- View this message in context: http://lucene.472066.n3.nabble.com/A-rant-about-field-collapsing-tp3222798p3225361.html Sent from the Solr - User mailing list archive at Nabble.com.