On tor, 2011-10-06 at 20:15 -0400, Alex Goncharov wrote: > P.S. And on the odd chance that somebody thinks that this > functionality would be possible and helpful to add to libpq, and > the problem is in the lack of human resources: I would be more > then happy to dig into some PostgreSQL (the product) development > under somebody's coaching, to start with. This topic or other. > I just wouldn't know where to start myself.
I had some some research on this particular topic/feature recently. My notes currently say, it's better to not tackle this before the not-null cataloging patch (see entry in current commitfest) is finished. Because that patch would presumably already implement much of the logic necessary to determine whether a give expression implies nullability or not and catalog this in a simpler fashion. Based on that you will then have to drag this information around and put it on the wire so that the client APIs can process it. -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers