From: | "Ross J(dot) Reedstrom" <reedstrm(at)wallace(dot)ece(dot)rice(dot)edu> |
---|---|
To: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
Cc: | Haroldo Stenger <hstenger(at)adinet(dot)com(dot)uy>, Ed Loehr <eloehr(at)austin(dot)rr(dot)com>, postgres general <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Does error within transaction imply restarting it? |
Date: | 2000-04-25 16:29:55 |
Message-ID: | 20000425112955.A13028@rice.edu |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Peter and Harold (and all):
I just tried this with current CVS sources. While it _does_ allow one to
continue after SQL syntax errors, and 'relation not found' type errors,
it makes a mess if the error is caused by a constraint firing, such
as a unique column constraint. I ended up with the dead tuple going live,
with a duplicate field, after some NOTICES about buffer leaks.
Ross
--
Ross J. Reedstrom, Ph.D., <reedstrm(at)rice(dot)edu>
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St., Houston, TX 77005
On Sat, Apr 15, 2000 at 08:52:02PM +0200, Peter Eisentraut wrote:
> Haroldo Stenger writes:
>
> > I seems that other DBMSs, don't care about erroneous statements within
> > a transaction. Now, I have several paths to follow: 1) Hacking the
> > backend ;-)
>
> If you're really brave you can try this change in
> backend/tcop/postgres.c:
>
> if (sigsetjmp(Warn_restart, 1) != 0)
> {
> time(&tim);
>
> if (Verbose)
> TPRINTF(TRACE_VERBOSE, "AbortCurrentTransaction");
>
> - AbortCurrentTransaction();
> InError = false;
> if (ExitAfterAbort)
> {
> ProcReleaseLocks(); /* Just to be sure... */
> proc_exit(0);
> }
> }
>
> Absolutely no guarantee, there's probably more to it. Hmm, I wonder, maybe
> not.
>
> > How can I motivate key developers to make their way into an action
> > plan?
>
> Becoming one yourself or throwing large amounts of cash at the existing
> ones. :) Trying the above and tracing down any arising problems might be a
> start though.
>
From | Date | Subject | |
---|---|---|---|
Next Message | Paul Condon | 2000-04-25 17:15:32 | Re: Revisited: Transactions, insert unique. |
Previous Message | Ross J. Reedstrom | 2000-04-25 16:25:17 | Re: Revisited: Transactions, insert unique. |