Stefan, I believe it is fine to start with the frontend as this is the 
exposed functionality in gernal. The point is that I got sick of 
waiting for the feature and I really need it badly right now, even if 
it is suboptimal. So I assigned one of our software engineers to it to 
give me some solution as a first step.

As a next step we can improve or redesign.

(As far as I have understood the sql vs non-sql debate is not yet 
conclude on the developers list.)