I do want to be presented with nested results in the end, though!
As I mentioned in the previous post, I am aware that this can be done with multiple queries and post-processing, but then I am implementing what essentially amounts to a join myself (of maybe I have something like an ORM do it for me). In any case, my data processing is now split up in two places.
And the point of Ultorg is that it provides an interface that does this post-processing into a nested representation. Except maybe for Gel (mentioned somewhere else here), I have not seen this in any other general interface for relational databases. If SQL supported nested results, this surely would be different.