Re: pg_upgrade project status

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Andrew Dunstan <andrew(at)dunslane(dot)net>, Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pg_upgrade project status
Date: 2009-01-27 14:39:50
Message-ID: 20090127143950.GE6444@alvh.no-ip.org
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Heikki Linnakangas wrote:
> Andrew Dunstan wrote:
>> Zdenek Kotala wrote:
>>> 2) pg_upgrade.sh
>>> http://archives.postgresql.org/pgsql-hackers/2008-12/msg00248.php
>>>
>>> Pg_upgrade.sh is shell script for catalog conversion. It works for
>>> 8.3->8.4 upgrade. It will be useful while we will not have better
>>> solution. Disadvantage is that it is korn shell script. The idea is to
>>> rewrite it in PERL which is more portable, but I'm not PERL expert and
>>> currently there is no workable solution.
>>
>> I have had a very brief look at this. Translation to perl doesn't look
>> difficult. I'll see what I can do during the next week or so.
>
> We don't require perl for any other feature, do we? Seems like a pretty
> onerous requireemnt for Windows in particular. We do use perl in the
> build scripts, but that's only required if you want to compile from
> source.

I think it's fairly easy to install Perl on Windows actually. It
doesn't sound too onerous a requirement if you want in-place upgrade;
actually it looks a very reasonable one.

Much more reasonable than Korn shell in any case (or any shell for that
matter; I think anything is going to be more of a potentially painful
platform dependency than Perl).

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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