This looks absolutely amazing and absurd at the same time. All IO is synchronous? Writes don't actually write when they say they do? Running 201 queries is as

This looks absolutely amazing and absurd at the same time. All IO is synchronous? Writes don't actually write when they say they do? Running 201 queries is as "fine" as running a single one with join? It seems as they got every bad ideia in the book and somehow made it into something that works (that is, if it actually does).