I agree for the most part. But unit testing is not nasty at all: just look up pgTAP. What's nasty is that the incumbent development model intersperses data m

I agree for the most part. But unit testing is not nasty at all: just look up pgTAP. What's nasty is that the incumbent development model intersperses data modelling constraints in the database and in the non-db code, and then we test one layer implicitly from another layer.