Re: RESET SESSION v3

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Marko Kreen <markokr(at)gmail(dot)com>
Cc: Neil Conway <neilc(at)samurai(dot)com>, PGSQL-Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: RESET SESSION v3
Date: 2007-04-12 19:41:53
Message-ID: 200704121941.l3CJfrQ27905@momjian.us
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Marko Kreen wrote:
> On 4/12/07, Neil Conway <neilc(at)samurai(dot)com> wrote:
> > On Sun, 2007-04-08 at 11:08 +0300, Marko Kreen wrote:
> > > I think implicit ABORT would annoy various tools that
> > > partially parse user sql and expect to know what transaction
> > > state currently is. For them a new tranaction control statement
> > > would be nuisance.
> >
> > That's not the only alternative: we could also either disallow all of
> > the "ALL" variants in a transaction block, or allow RESET SESSION inside
> > a transaction block.
> >
> > I've committed the patch basically as-is: thanks for the patch. I don't
> > feel strongly about the above, but if there's a consensus, we can change
> > the behavior later.
>
> Thanks for reviewing it.
>
> One argument for top-level ALL commands is also that
> poolers and other tools in the middle of connection can track
> them. But it could also argued that they should have similar
> rules than ordinary CLOSE/DEALLOCATE statements. Also it seems
> that disallowing them inside functions for no good reason is
> couterproductive.
>
> But I also dont feel strongly either way.

I was thinking we would throw a WARNING rather than an error for RESET
SESSION inside a transaction.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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