Message-ID: <54BEA303.4080201@gmail.com>
Date: Tue, 20 Jan 2015 13:48:35 -0500
From: John Scalia <jayknowsunix@gmail.com>
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To: Glyn Astill <glynastill@yahoo.co.uk>,
 "pgsql-admin@postgresql.org" <pgsql-admin@postgresql.org>
Subject: Re: cannot drop an extension
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On 1/20/2015 1:42 PM, Glyn Astill wrote:
>
>
>
> ----- Original Message -----
>> From: John Scalia <jayknowsunix@gmail.com>
>> To: "pgsql-admin@postgresql.org" <pgsql-admin@postgresql.org>
>> Cc:
>> Sent: Tuesday, 20 January 2015, 18:12
>> Subject: [ADMIN] cannot drop an extension
>>
>> Hi all,
>>
>> My pg_upgrade woes continue... The primary server, V9.3.3, was originally used
>> as a testbed for pgpool-II, although we ended up chosing pacemaker and corosync
>> instead. When pgpool
>> was installed, the instructions have you add a pgpool-regclass extension.
>> Naturally, trying to upgrade to V9.4.0 fails and pg_upgrade writes a
>> loadable_libraries.txt saying that
>> $libdir/pgpool-regclass cannot be found. So, I restarted the original database,
>> and connected to both my csg_db instance and to the template1 instance, then
>> tried issuing a "drop
>> extension pgpool-reglass", but the both the db's say it does not exist.
>> I also tried dropping it by enclosing the extension name in quotes, both single
>> and double with no joy.
>> Then, I tried looking in pg_extensions, but I didn't see any similar entry
>> there either. How can I get rid of this extension so that pg_upgrade will
>> complete successfully? I've
>> asked on the pgpool admin list, but as it's the middle of the night in
>> Japan, I'm not expecting an immediate answer, if any.
>
> Sounds like you need to remove the pgpool-regclass entry from the shared_preload_libraries entry in your postgresql.conf
>
Well, I just checked the server's postgresql.conf file, and the shared_preload_libraries parameter only has 'pg_stat_statements' in it, and local_preload_libraries is commented 
out. I further searched for anything with "pgpool" in the file, and nothing came back.


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