To: Edward Amsden <amsden_linux@embarqmail.com>
cc: pgsql-interfaces@postgreSQL.org
Subject: Re: pqlib large object error 
In-reply-to: <1213134089.15557.22.camel@dad-desktop2> 
References: <1213118594.9123.11.camel@dad-desktop2>
	<21991.1213122593@sss.pgh.pa.us>
	<1213130242.15557.3.camel@dad-desktop2>
	<24396.1213130996@sss.pgh.pa.us>
	<1213134089.15557.22.camel@dad-desktop2>
Comments: In-reply-to Edward Amsden <amsden_linux@embarqmail.com>
	message dated "Tue, 10 Jun 2008 17:41:29 -0400"
Date: Tue, 10 Jun 2008 19:05:25 -0400
Message-ID: <26209.1213139125@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>

Edward Amsden <amsden_linux@embarqmail.com> writes:
> On Tue, 2008-06-10 at 16:49 -0400, Tom Lane wrote:
>> Hmph.  The only thing I can think of is that that index is corrupt,
>> but it seems unlikely that it would be so in all databases.  What
>> happens if you REINDEX pg_largeobject?

> The error has disappeared.

Hmm, so something did happen to your index.

> Now it can't write to the object. lo_open
> seems to be successful, but lo_write is failing with:
>> ERROR:  invalid large-object descriptor: 0

You forgot to put the open-and-use-descriptor sequence inside a 
BEGIN block.

			regards, tom lane