A forums user asked why we don't validate the Sort field being set on a FullTextQuery. I've tried to summarize some of the reasons of why it's a complex thing, still it's something worth considering. Let's keep it in mind as yet another reason to try intercept which fields are being written by custom FieldBridge instances? Considering the special needs of a Sort field - being unique, being fieldcacheable/documentValues enabled, maybe we should even consider that adding them should have its own API, maybe even dedicated mapping annotations. Or other ideas very welcome. https://forum.hibernate.org/viewtopic.php?f=9&t=1038601 Thanks, Sanne