Re: pg_largeobject.sql script not run after upgrade - Mailing list pgsql-general

From Bruce Momjian
Subject Re: pg_largeobject.sql script not run after upgrade
Date
Msg-id 20130624182027.GA3484@momjian.us
Whole thread Raw
In response to Re: pg_largeobject.sql script not run after upgrade  (Stuart Ford <stuart.ford@glide.uk.com>)
Responses Re: pg_largeobject.sql script not run after upgrade  (Stuart Ford <stuart.ford@glide.uk.com>)
List pgsql-general
On Mon, Jun 24, 2013 at 06:03:40PM +0000, Stuart Ford wrote:
> On 24/06/2013 17:18, "Bruce Momjian" <bruce@momjian.us> wrote:
>
>
> >On Mon, Jun 24, 2013 at 03:25:44PM +0000, Stuart Ford wrote:
> >> On 24/06/2013 14:00, "Bruce Momjian" <bruce@momjian.us> wrote:
> >>
> >>
> >> >
> >> >Looking further, here is the command that is executed:
> >> >
> >> >    SELECT pg_catalog.lo_create(t.loid)
> >> >    FROM (SELECT DISTINCT loid FROM pg_catalog.pg_largeobject) AS t;
> >> >
> >> >If you have created _new_ large objects since the upgrde, the script
> >> >might throw an error, as there is already metadata for those large
> >> >objects.  You might need to delete the rows in pg_largeobject_metadata
> >> >before running the script;  this will reset all the large object
> >> >permissions to default.
> >>
> >> There doesn't appear to be, if this command, which returns 0, is
> >>correct:
> >>
> >> select count(*) from pg_catalog.pg_largeobject_metadata ;
> >>
> >> So it's OK to go ahead and run at any time?
> >
> >Yep.  If it fails for some reason, just delete the contents of
> >pg_largeobject_metadata and run it again.
>
> Do you know if not running this script would explain the fact that our
> dump file sizes have been much smaller than expected?

It might be possible if lack of pg_largeobject_metadata values causes
your large objects not to be dumped;  I have not tested this.

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

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


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