From: | "Marc G(dot) Fournier" <scrappy(at)hub(dot)org> |
---|---|
To: | Jan Wieck <janwieck(at)yahoo(dot)com> |
Cc: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Vince Vielhaber <vev(at)michvhf(dot)com>, Mike Mascari <mascarm(at)mascari(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Vote totals for SET in aborted transaction |
Date: | 2002-04-26 13:24:12 |
Message-ID: | 20020426102400.H2368-100000@mail1.hub.org |
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Lists: | pgsql-hackers |
On Fri, 26 Apr 2002, Jan Wieck wrote:
> Bruce Momjian wrote:
> > Marc G. Fournier wrote:
> > > On Thu, 25 Apr 2002, Bruce Momjian wrote:
> > >
> > > >
> > > > Marc is suggesting we may want to match Oracle somehow.
> > > >
> > > > I just want to have our SET work on a sane manner.
> > >
> > > Myself, I wonder why Oracle went the route they went ... does anyone have
> > > access to a Sybase / Informix system, to confirm how they do it? Is
> > > Oracle the 'odd man out', or are we going to be that? *Adding* something
> > > (ie. DROP TABLE rollbacks) that nobody appears to have is one thing ...
> > > but changing the behaviour is a totally different ...
> >
> > Yes, let's find out what the others do. I don't see DROP TABLE
> > rollbacking as totally different. How is it different from SET?
>
> Man, you should know that our transactions are truly all or
> nothing. If you discard a transaction, the stamps xmin and
> xmax are ignored. This is a fundamental feature of Postgres,
> and if you're half through a utility command when you ERROR
> out, it guarantees consistency of the catalog. And now you
> want us to violate this concept for compatibility to Oracle's
> misbehaviour? No, thanks!
How does SET relate to xmin/xmax? :)
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