Re: upgrading postgres 7.3.4 to 9.1.9

-----Original Message-----
From: Kevin Grittner [mailto:kgrittn(at)ymail(dot)com]
Sent: 04 August 2014 03:30 PM
To: Khangelani Gama; pgsql-admin(at)postgresql(dot)org
Subject: Re: [ADMIN] upgrading postgres 7.3.4 to 9.1.9

Khangelani Gama <kgama(at)argility(dot)com> wrote:

> this one instance is still on postgres 7.
>
> I dumped postgres 7 database using pg_dump –Fc on postgres 7 binaries
> and then attempted pg_restore –Fc (using postgres9.1.9
> binaries)

The recommended approach is to perform the dump with software from the newer
version.

> which threw out the following errors.

> ERROR: language "plpgsql" already exists
> DETAIL: Proceeding with relation creation anyway.

I'm not sure you'll get this if you use the 9.1 pg_dump. In any event, I
think it could be safely ignored if you do so.

> ERROR: could not access file "$libdir/plperl": No such file or
> directory
> ERROR: function public.plperl_call_handler() does not exist
> ERROR: could not access file "$libdir/plperl": No such file or
> directory
> ERROR: language "plperlu" does not exist

I would use CREATE EXTENSION for plperlu on the 9.1 database before
attempting to restore.

> Because of the above errors I tried the following
>
> /usr/local/pgsql9/bin/createlang -p59999 plperl template1
>
> createlang: language installation failed: ERROR: could not open
> extension control file
> "/usr/local/pgsql9/share/extension/plperl.control": No such file or
> directory

Thanks Kevin, in psql I keep getting the following errors: I saw what it is
explained in
http://stackoverflow.com/questions/12136033/install-pl-perl-in-postgresql
But I am not sure if this installation command "yum install perl-devel" will
work without affecting other special setups.

template1=# CREATE EXTENSION plperl;
ERROR: could not open extension control file
"/usr/local/pgsql9/share/extension/plperl.control": No such file or
directory
template1=# CREATE EXTENSION plperlu;
ERROR: could not open extension control file
"/usr/local/pgsql9/share/extension/plperlu.control": No such file or
directory

http://stackoverflow.com/questions/12136033/install-pl-perl-in-postgresql

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