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<div>På tirsdag 05. februar 2013 kl. 14:13:20, skrev Chris Angelico <<a href="mailto:rosuav@gmail.com" target="_blank">rosuav@gmail.com</a>>:</div> <blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div style="display:inline; font-family: monospace; font-size: 12px;">On Tue, Feb 5, 2013 at 11:32 PM, Alban Hertroys <haramrae@gmail.com> wrote:<br> > On 5 February 2013 12:41, Andreas Joseph Krogh <andreak@officenet.no> wrote:<br> >><br> >> There are lots of things you can do, but when it's the ORM which does it<br> >> you have limited control, and that's the way it should to be (me as<br> >> application-developer having to worry less about such details).<br> ><br> > In that case it's your ORM that needs fixing, not the database.<br> <br> Agreed. One of the differences between MySQL and PostgreSQL is that<br> the latter gives you a database with rules, while the former is a<br> place for an application to store data. This last couple of weeks I've<br> been working with a really sloppily-built application (and a very<br> popular one too, so I won't name names), and it fits MySQL<br> perfectly... What I'd much rather do is build real rules that may not<br> EVER be violated. While I can see the value in deferring foreign key<br> constraints (circular references - never used 'em though), I don't see<br> any reason to create a record with a NULL and then replace that NULL<br> before committing. Sort out program logic first; then look to the<br> database.<br> <br> Making people's lives easier in the short term is NOT the greatest<br> goal of a database. Consistent data will make the admins' lives far<br> easier in the long term. I do not ever want to have to deal with<br> BTrieve file corruption in my life.</div> </blockquote> <div> </div> <div>I've been using PG since v-6.5 and I'm very aware of its strengths, and also its weaknesses. There really isn't an argument for not having NOT NULL deferrable constraints, other than -hackers not prioritizing it, which I understand perfectly well as they have lots of other interesting stuff on their plate.</div> <div> <div class="origo-email-signature">--<br> Andreas Joseph Krogh <andreak@officenet.no> mob: +47 909 56 963<br> Senior Software Developer / CTO - OfficeNet AS - http://www.officenet.no<br> Public key: http://home.officenet.no/~andreak/public_key.asc</div> <div> </div> </div>