Re: [GENERAL] pg_upgrade ?deficiency

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Kevin Grittner <kgrittn(at)ymail(dot)com>
Cc: Andres Freund <andres(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Karsten Hilbert <Karsten(dot)Hilbert(at)gmx(dot)net>, "Hilbert, Sebastian" <Sebastian(dot)Hilbert(at)gmx(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [GENERAL] pg_upgrade ?deficiency
Date: 2013-11-23 15:48:13
Message-ID: 20131123154813.GA1142@momjian.us
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On Fri, Nov 22, 2013 at 04:25:57PM -0800, Kevin Grittner wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> > On Fri, Nov 22, 2013 at 01:55:10PM -0800, Kevin Grittner wrote:
> >
> >> It does nothing about pg_upgrade, which is sort of a separate
> >> issue.  My inclination is that connections to the new cluster
> >> should set this and connections to the old should not.
> >
> > It is going to be tricky to conditionally set/reset an
> > environment variable for default_transaction_read_only for
> > old/new clusters.
>
> Why?  If you know you have connected to the new cluster, set it to
> off; if you know you have connected to the old cluster, don't touch
> it.

Remember this is being done with a PGOPTIONS environment variable, so
you need to set/reset this on every action. I just don't see the value.

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

+ Everyone has their own god. +

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