Hi, I am in the process of upgrading an extension I made to QueryComponent from solr 3.4 to solr 4.8. I am wrapping the query into a filteredquery together with a termsfilter that encapsulates a lot of Terms for up to two fields (potentially 10s of thousands, only two in my simple test case). My extension worked fine in solr 34 and I have used it for years. After upgrading to solr 4.8 and compiling the extension against the new source (Termsfilter API changed a little bit in how you pass in the terms), I am no longer getting any records back when running a query. The same query not involving the filter returns the expected results. A semantically equivalent query using a lot of OR clauses in the fq query parameter works fine, but is about 10 times slower, so I would really like to get the TermsFilter to work. I printed out the Query in solr 34 and in solr 48 and they differ (Unfortunately I do not know how to read these lines.): solr 34: filtered(+(bedbathbeyond:portlandia | title_pst:portlandia^1.5 | license_plate:portlandia | title_tst:portlandia^2.0 | description_pst:portlandia^0.8 | description_tst:portlandia | phone_number:portlandia | reference_number:portlandia))->org.apache.lucene.search.TermsFilter@66c21442
solr 48: filtered(+(+(reference_number:portlandia | title_tst:portlandia^2.0 | license_plate:portlandia | phone_number:portlandia | bedbathbeyond:portlandia | title_pst:portlandia^1.5 | description_tst:portlandia | description_pst:portlandia^0.8)))->property_group_id:984678480 property_id:984678954 (The query info for the latter line was: INFO: [property_test] webapp=/solr path=/select params={fl=*+score&start=0&q=portlandia&qf=title_pst^1.5+title_tst^2+description_pst^0.8+description_tst+bedbathbeyond+phone_number+reference_number+license_plate&properties=984678954&wt=ruby&groups=984678480&fq=type:Property&fq=visibility_s:visible&rows=25&defType=edismax} hits=0 status=0 QTime=5 ) I attached a copy of my source code, and marked the changes I made to the code of QueryComponent with comments - maybe there is something obviously wrong. Any help or pointers are appreciated, also please let me know if I should rather write to the dev list than the users list. thanks, Johannes