Обсуждение: Transaction Aborting on sql call failure

> We are running into a situation where psql is aborting the transaction
> when one call returns an error.  Is there a way to continue on with
> transaction or at least save what has already happened (like an Oracle
> Save Point)?

Not yet, although savepoints have been talked about. (maybe 7.3?)

Stephan Szabo wrote:
>
> > We are running into a situation where psql is aborting the transaction
> > when one call returns an error.  Is there a way to continue on with
> > transaction or at least save what has already happened (like an Oracle
> > Save Point)?
>
> Not yet, although savepoints have been talked about. (maybe 7.3?)

New SMGR opens the way to this *very important* feature. Vadim?

Another proposal to solve this was recently proposed, not using WAL. Bruce?

I think this issue is rasing in the lists frequently enough, as for giving it
top priority. Maybe is isn't so easy. Comments?

Thanks

Regards,
Haroldo.

> Stephan Szabo wrote:
> >
> > > We are running into a situation where psql is aborting the transaction
> > > when one call returns an error.  Is there a way to continue on with
> > > transaction or at least save what has already happened (like an Oracle
> > > Save Point)?
> >
> > Not yet, although savepoints have been talked about. (maybe 7.3?)
>
> New SMGR opens the way to this *very important* feature. Vadim?
>
> Another proposal to solve this was recently proposed, not using WAL. Bruce?

Yes, see TODO page under transactions.  It has my email about it.

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

Hi all,

    Is there any way to alter postgres' debug levels without restarting it?
Specifically I sometimes need to turn on query logging but I don't want to
restart the backend.


Thanks,

--Rainer

i'm using

   pg_ctl -l /var/log/pgsql/logfile start

to start my postgres. So whenever i look at the log files i just

   tail -f /var/log/pgsql/logfile

that seems to do the trick.


hope this helps,


herbert


On Thu, 27 Sep 2001, Rainer Mager wrote:

> Hi all,
>
>     Is there any way to alter postgres' debug levels without restarting it?
> Specifically I sometimes need to turn on query logging but I don't want to
> restart the backend.
>
>
> Thanks,
>
> --Rainer
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
> http://archives.postgresql.org
>

Hi,

    Thanks for the answer. I looked at this and I think it might not work for
us. The thing is that we have a connection pool that maintains connections
to the db so all connections being closed at the same time will never
happen. Does this pg_ctl thing do VERY clever restarting like spawning a new
back end, as each connection closes removing it from the old back end, and
directing all new connections to the new backend until all old connections
are closed?

Thanks,

--Rainer

> -----Original Message-----
> From: pgsql-admin-owner@postgresql.org
> [mailto:pgsql-admin-owner@postgresql.org]On Behalf Of Herbert Rabago Ambos
> Sent: Friday, September 28, 2001 7:12 AM
> To: Rainer Mager
> Cc: pgsql-admin@postgresql.org
> Subject: Re: [ADMIN] turning on debug without restarting postgres
>
>
>
> i'm using
>
>    pg_ctl -l /var/log/pgsql/logfile start
>
> to start my postgres. So whenever i look at the log files i just
>
>    tail -f /var/log/pgsql/logfile
>
> that seems to do the trick.
>
>
> hope this helps,
>
>
> herbert

"Rainer Mager" <rmager@vgkk.com> writes:
>     Is there any way to alter postgres' debug levels without restarting it?

postgresql.conf to affect all backends, SET command to affect only one
backend.

            regards, tom lane