Hi all, I've been working with using Solr's post filters/delegate collectors to collect some statistics about the scores of all the documents and had a few questions with regards to this when combined with grouping and sorting: 1) I noticed that if I don't include the "score" field as part of the sort spec with *no* grouping enabled, my custom delegate scorer gets called so I can then collect the stats I need. Same is true with score as part of the sort spec (this then leads me to focus on the grouping feature) 2) If I turn ON grouping: a) WITH "score" in the sort spec, my custom delegate scorer gets called b) WITHOUT "score" in the sort spec, my custom delegate scorer does NOT get called.
What's interesting though is that there *are* scores generated so I'm not sure what all is going on. I traced through the code and saw that the scorer gets called as part of one of the comparators (RelevanceComparator) which is why with "score" in the sort spec it works but that is about as far as I could go. Since I am not too worried in my application about a sort spec without the score always being there it's not a huge concern; however, I do want to understand why with the grouping feature enabled, this doesn't work and whether or not it's a bug. Any help on this would be appreciated so that my solution to this problem is complete. Thanks! Amit
