Re: I/O error on data file, can't run backup

On Wednesday 5. October 2011 20.42.00 Tom Lane wrote:
> Postgres can't magically resurrect data that your drive lost, if that's
> what you were hoping for.  However, you might be in luck, because that
> file is probably just an index and not original data.  Try this:
>
>     select relname from pg_class where relfilenode = 11658;
>
> On my 9.0 installation I get "pg_opclass_am_name_nsp_index".  If you get
> the same (or any other index for that matter) just reindex that index
> and you'll be all right ... or at least, you will be if that's the only
> file your drive has lost.

Tom,
this is what I get:

postgres@balapapa ~ $ psql pgslekt
psql (9.0.5)
Type "help" for help.

pgslekt=# select relname from pg_class where relfilenode = 11658;
   relname
-------------
 pg_opfamily
(1 row)

regards, Leif