If I have a request, that returns thousands of resourses, and I need to perform filtering on our database with those recurses, something like: WHERE id=ANY(what_spicedb_returned) AND ... that's a pretty fitting use case for materialize right? What we are doing currently, is picking the resource that gives you permission to that ressource, because that reduces how much stuff is returned from spicedb to a manageable amount... For now So we do: WHERE parent=ANY(what_spicedb_returned) AND ... Instead