Re: timeout implementation issues

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, Michael Loftis <mloftis(at)wgops(dot)com>, PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: timeout implementation issues
Date: 2002-04-10 03:50:28
Message-ID: 200204100350.g3A3oSl16526@candle.pha.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Hiroshi Inoue wrote:
> > > ??? What do you mean by
> > > o Some SETs are honored in an aborted transaction (current)
> > > ?
> > > Is the current state different from
> > > o All SETs are honored in an aborted transaction
> > > ?
> >
> > In the case of:
> >
> > BEGIN WORK;
> > SET x=1;
> > bad query that aborts transaction;
> > SET x=2;
> > COMMIT WORK;
> >
> > Only the first SET is done, so at the end, x = 1. If all SET's were
> > honored, x = 2. If no SETs in an aborted transaction were honored, x
> > would equal whatever it was before the BEGIN WORK above.
>
> IMHO
> o No SETs are honored in an aborted transaction(current)
>
> The first SET isn't done in an aborted transaction.

I guess my point is that with our current code, there is a distinction
that SETs are executed before a transaction aborts, but are ignored
after a transaction aborts, even if the SETs are in the same
transaction.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Gavin Sherry 2002-04-10 03:58:56 Re: BETWEEN SYMMETRIC/ASYMMETRIC
Previous Message Bruce Momjian 2002-04-10 03:48:28 Re: timeout implementation issues