Hello all,
sorry, was off yesterday and i'm just reading all your answers.
On Sat, 29 Mar 2008 22:35:21 -0400 Tom Lane wrote:
> I wrote:
> > ... However, I seem to recall
> > that in the discussions leading up to implementing DROP IF EXISTS,
> > we considered and specifically rejected CREATE IF NOT EXISTS. Don't
> > have time right now to troll the archives for the reasoning.
>
> [ back from dinner party... ] Here's the thread I was remembering:
> http://archives.postgresql.org/pgsql-hackers/2005-10/msg00632.php
>
> The key argument seems to be that it's quite unclear what the state
> following CREATE IF NOT EXISTS (CINE) should be, if the object does
> exist but not with the same properties specified in the CINE command.
> CREATE OR REPLACE resolves that by making it clear that it's gonna be
> what the command says.
Tom: this answers my other question: if someone executes a REPLACE
LANGUAGE and as example is using another handler, the new handler
should replace the old one. Correct?
So i will change my small patch and reimplement this extension with
CREATE OR REPLACE.
Thanks all for your useful answers.
--
Andreas 'ads' Scherbaum
German PostgreSQL User Group
