[pgpool-general: 3433] Re: Fwd: Upgrading PostgreSQL to V9.4.0

John Scalia jayknowsunix at gmail.com
Wed Jan 21 23:12:40 JST 2015

Good Morning, Ishii-san,

I tried your suggestion, and yes, I found the pgpool_regclass in the pg_catalog.pg_proc table, but running \df did not return any entries. Anyway, I deleted the entry in the 
pg_proc table, and tried running pg_upgrade again. Still failed with the exact same error: Couldn't find $libdir/pgpool-regclass.so. Is there another table where this entry might 
be lurking?

On 1/20/2015 6:09 PM, Tatsuo Ishii wrote:
> My guess is, pg_upgrade found pgpool_regclass in pg_proc and looked
> for its .so file and failed. When you start the old server, do you
> see the function by using \df command of psql?
> Best regards,
> --
> Tatsuo Ishii
> SRA OSS, Inc. Japan
> English: http://www.sraoss.co.jp/index_en.php
> Japanese:http://www.sraoss.co.jp
>> Hi all,
>> I've hit a snag while trying to upgrade my PostgreSQL primary server
>> from V9.3.3 to V9.4.0 related to PGPool-II. I had turned off both
>> pgpool and the old postgresql server and tried to run pg_upgrade, but
>> it failed with a 'Could not load library
>> "$libdir/pgpool-regclass"'. (BTW, if you're running streaming
>> replication, you either need to leave a standby running for
>> pg_upgrade, or reconfigure your primary to be a standalone.) I had
>> assumed that I was going to need to reinstall pgpool, and was going to
>> take the opportunity to upgrade that to the latest version as well,
>> but how do I get this extension out of here for now? I've tried
>> restarting the original database and entering "drop extension
>> pgpool-regclass", but that says no such extension, and while I'm not
>> exactly certain where the extensions are recorded, I didn't see this
>> listed in pg_extensions either. Nevertheless, pg_upgrade keeps
>> throwing an error in the loadable_libraries.txt file when run.
>> Help?,
>> Jay
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