Re: pg_upgrade dead code for pre-8.4 versions

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Daniel Gustafsson <daniel(at)yesql(dot)se>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: pg_upgrade dead code for pre-8.4 versions
Date: 2020-10-06 20:41:04
Message-ID: CABUevEzUjFbG+RGCDmawQEVrzX92YzVCxocn=-d+mTq518hmpw@mail.gmail.com
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On Tue, Oct 6, 2020 at 8:45 PM Bruce Momjian <bruce(at)momjian(dot)us> wrote:

> On Tue, Oct 6, 2020 at 11:40:57AM +0200, Daniel Gustafsson wrote:
> > > On 6 Oct 2020, at 11:27, Magnus Hagander <magnus(at)hagander(dot)net> wrote:
> >
> > > ISTM that code could be cleaned out, because it should be dead based
> on the initial check that we are upgrading from 8.4 or later?
> >
> > +1. Commit 2209b3923a7afe0b removed support for 8.3 so anything left
> checking
> > for pre-8.4 should be removed as a pre-8.4 source cluster couldn't be
> upgraded
> > with pg_upgrade today.
>
> OK, fixed with the attached patch, applied to all branches. There was
> code that tested for >= 8.4 (useless test) or < 8.4 (dead code). I
> also adjusted the version tests to be consistent.
>

Thanks!

And yeah, I noticed the inconsistency in the checking as well. Getting that
cleaned up was good.

--
Magnus Hagander
Me: https://www.hagander.net/ <http://www.hagander.net/>
Work: https://www.redpill-linpro.com/ <http://www.redpill-linpro.com/>

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