Tom Lane wrote:
> Bruce Momjian <br...@momjian.us> writes:
> > David Platt wrote:
> >> The following definition is my database:
> >> 
> >> CREATE FUNCTION plpgsql_call_handler() RETURNS language_handler
> >> LANGUAGE c
> >> AS '/opt/postgres/8.4.1/lib/plpgsql', 'plpgsql_call_handler';
> >> 
> >> The file /opt/postgres/9.rc1/lib/plpgsql.o exists but the pg_upgrade run
> >> fails on an error loading /opt/postgres/8.4.1/lib/plpgsql.o.
> 
> > What is the error?  What old version of PG are you migrating from?
> 
> Well, it's obviously going to fail, because it will try to load an 8.4
> version of plpgsql.so into 9.0.  The same would happen if you tried to
> pg_dump and reload --- it's by no means the fault of pg_upgrade.
> 
> IMO this is just pilot error.  The call handler should never have been
> declared like that, precisely because the definition will not port to
> other releases or even other installation locations.  The right way for
> the definition to look like is
> 
>       ... AS '$libdir/plpgsql'
> 
> or perhaps even just
> 
>       ... AS 'plpgsql'
> 
> if you'd like to rely on the dynamic_library_path setting.
> 
> I suspect David thinks that pg_upgrade should try to edit the library
> path name, but IMO that would be seriously dangerous, as well as not
> necessary if reasonable practices have been followed.

I am confused how it got defined that way?  Who would be defining their
own plpgsql handler?  I am concerned there is some packaging that is
impoperly defining it.

-- 
  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

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