"You're telling Solr to return the highest scoring doc in each group. However, you're asking to order the _groups_ in ascending score order (i.e. the group with the lowest scoring doc first) of _any_ doc in that group, not just the one(s) returned. These are two separate things. "
This is quite interesting, and I admit I have not explored the internals yet so i didn't know. So, even if you return only the top scoring doc per group and you flat the groups (group.format=simple), the "invisible docs" will still regulate the sorting of the groups. I would say it is at least quite counter-intuitive. So it means that group sorting is independent of the group head sorting. sort = score asc -> will always sort the groups by ascending score of the minimum scoring doc of the group. sort = score desc -> will always sort the groups by descending score of the maximum scoring doc in the group Cheers ----- --------------- Alessandro Benedetti Search Consultant, R&D Software Engineer, Director Sease Ltd. - www.sease.io -- View this message in context: http://lucene.472066.n3.nabble.com/Grouped-Result-sort-issue-tp4329255p4329468.html Sent from the Solr - User mailing list archive at Nabble.com.
