am Fri, dem 15.06.2007, um 10:24:26 +0200 mailte Adrian von Bidder folgendes: > Hi, > > I want to tighten down my db schema as much as possible against accidential > corruption. For this, I'd like to have fields that can only inserted and > not later changed (think some sort of "id", account names, etc., which are > often not only stored in the database but also in external places so > changing is just a definitive DON'T). > > Obviously I can check this with triggers, but it occured me that some kind > of "CONSTANT" field attribute would be nice. Perhaps such a construct > already exists? Or perhaps somebody has come up with a generic way to do > this without having to write 30 or 50 small triggers all over the place? You can use RULE for this: http://www.postgresql.org/docs/techdocs.7 Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
