Schema v1.7 has a new behavior ==> docValues defaults to true, univertible defaults to false. From what I could track, this change happened in Solr 9.7.
Since TextFields are anyway docValues=false, your behavior must be coming from the uninvertible=false default. You could consider reindexing and might have to explicitly set univertible=true for the non-primitive fields for which you need faceting. Primitive fields will be docValues=true by default in schema 1.7 and will continue to support faceting. If you don't want to reindex, you could switch back to schema v1.6. -Rahul On Mon, Jun 16, 2025 at 3:34 AM ufuk yılmaz <uyil...@vivaldi.net.invalid> wrote: > It might be due to the “uninvertible” property of the field definition. > The default value of the property changed from true to false in the recent > Solr versions (don’t know which one exactly) > > Performance-wise it is much better to use a docValues capable field such > as a string field for faceting and sorting, you can keep your original text > field and copy it to a new string field using a copyField definition. Or > you can set uninvertible to true and reindex if you don’t care about the > performance benefits of using docValues:) > > —Ufuk > > — > > > On Jun 16, 2025, at 16:09, Vincenzo D'Amore <v.dam...@gmail.com> wrote: > > > > Hi Solr Community, > > > > I'm reaching out for help understanding an issue I've encountered after > > upgrading from Solr 8 to Solr 9.8.1. Since the upgrade, my facet queries > > are returning empty results, even though the indexed data appears to be > > intact. > > > > I've also upgraded the schema version to 1.7 as part of the migration. > The > > most significant change seems to be related to two custom > solr.TextField-based > > field types that previously supported faceting in Solr 8 but no longer do > > in Solr 9.8.1. > > > > Here are the field type definitions that are causing trouble: > > > > <fieldType name="kwd" stored="true" indexed="true" > class="solr.TextField"> > > <analyzer type="index"> > > <tokenizer class="solr.KeywordTokenizerFactory"/> > > <filter class="solr.LowerCaseFilterFactory" /> > > </analyzer> > > </fieldType> > > > > <fieldType name="payloads" stored="true" indexed="true" > > class="solr.TextField" positionIncrementGap="1000"> > > <analyzer type="index"> > > <tokenizer class="solr.WhitespaceTokenizerFactory"/> > > <filter class="solr.DelimitedPayloadTokenFilterFactory" > > encoder="float" delimiter=":"/> > > </analyzer> > > <analyzer type="query"> > > <tokenizer class="solr.WhitespaceTokenizerFactory"/> > > </analyzer> > > </fieldType> > > > > These fields used to work fine for faceting in Solr 8. Now, after this > > issue or knows if there were changes in Solr 9.x that affect faceting on > > TextField types? Are there recommended alternatives or adjustments I > should > > make to restore facet functionality? > > > > Any guidance or suggestions would be greatly appreciated! > > > > Thanks in advance, > > Vincenzo > > -- > > Vincenzo D'Amore > >
