Re: timeout implementation issues - Mailing list pgsql-hackers

From Hiroshi Inoue
Subject Re: timeout implementation issues
Date
Msg-id 3CB3A76C.557B2520@tpf.co.jp
Whole thread Raw
In response to Re: timeout implementation issues  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: timeout implementation issues
Re: timeout implementation issues
List pgsql-hackers
Bruce Momjian wrote:
> 
> Hiroshi Inoue wrote:
> > Bruce Momjian wrote:
> > >
> > > Hiroshi Inoue wrote:
> > > > > > Oops does the first mean rolling back the variables on abort ?
> > > > > > If so I made a mistake. The current is better than the second.
> > > > >
> > > > > The second means all SET's are rolled back on abort.
> > > >
> > > > I see.
> > > > BTW what varibles are rolled back on abort currently ?
> > >
> > > Currently, none,
> >
> > ??? 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.

regards,
Hiroshi Inoue


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