"FQ_filter were 365 but below in the debugging part the docfreq used in the payload_score calculation was 3360"
If you are talking about the doc frequency of a term, obviously this is corpus based ( necessary for the TF /IDF calculations) so it wil not be affected by the filter queries. The payload score part may be different. Anyway, you mentioned that you assign the weights, in that case the learning to rank plugin may be not necessary at all. Regards ----- --------------- Alessandro Benedetti Search Consultant, R&D Software Engineer, Director Sease Ltd. - www.sease.io -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html