Hey all, so I'm one of the authors of postgression. The website isn't totally clear as to all the reasons why this may be useful. I've written a blog post about it, which you may also find helpful if you're interested:<p><a href="http://rdegges.com/postgression-a-postgresql-database-for-every" rel="nofollow">http://rdegges.com/postgression-a-postgresql-database-for-ev...</a>