Date: Fri, 19 Aug 2005 19:06:02 -0400
From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: pgsql-interfaces@postgresql.org, Junaili Lie <junaili@gmail.com>,
	pgsql-general@postgresql.org
Subject: Re: <IDLE> in transaction
Message-ID: <20050819230602.GM15622@surnet.cl>
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	Junaili Lie <junaili@gmail.com>, pgsql-general@postgresql.org
References: <8d04ce990508181616c93fbbc@mail.gmail.com>
	<20050819000218.GS5365@varlena.com>
	<20050819185519.GY5365@varlena.com>
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On Fri, Aug 19, 2005 at 11:55:19AM -0700, elein wrote:
> I'm cross posting to INTERFACES.  Please follow up
> on INTERFACES and not on general.  Cross posting is evil.

Well, I'm not on -interfaces, so I'll reply to both :-)  I don't worry
too much about crossposting, because a) it's commonplace in PostgreSQL
lists, and b) majordomo can deliver a single copy of the message if you
configure it to do so.


> > Some of these I-i-t connections come and go after a while.
> > Some stick around for DAYS.
> > 
> > If ANYONE has any brilliant ideas as to the source and
> > dare I say correction to this problem, many people, especially
> > myself would be very very happy.

While this is a purely client-side problem, which is the client issuing
a BEGIN right after a COMMIT, we talked about coding around it
server-side, back in the time when I was doing nested transactions.
It didn't get done though.  I think if you push hard enough, somebody
(myself?) may do it for 8.2.

Of course, this is no solution if the client started a transaction, did
some work, and then sat on the connection with the transaction open for
days.  But this is not a common case and is certainly much more broken,
if only because other RDBMS behave more reasonably in the COMMIT-BEGIN
scenario.

-- 
Alvaro Herrera (<alvherre[a]alvh.no-ip.org>)
"La persona que no quería pecar / estaba obligada a sentarse
 en duras y empinadas sillas    / desprovistas, por cierto
 de blandos atenuantes"                          (Patricio Vogel)