Re: pg_inherits: not found, but visible

On Wed, 21 Mar 2001, Hiroshi Inoue wrote:

> Joel Burton wrote:
> >
> > On Wed, 21 Mar 2001, Hiroshi Inoue wrote:
> >
> > > Joel Burton wrote:
> > > >
> > > > Postmaster crashed on me, and on restart, pg_inherits cannot be found.
> > > > I can see it in pg_class (and it shows up w/ \dS), but any attempt to
> > > > modify anything fails with "pg_inherits: No such file or directory".
> > > >
> > > > I've reindexed the database (w/postgres -P -O). Vacuuming fails (w/error
> > > > above).
> > > >
> > > > What could this be? Is there any hope?
> > > >
> > >
> > > Try the following queries.
> > > 1) select oid from pg_database where datname = your_db_name;
> > > 2) select oid, relfilenode from pg_class where relname = 'pg_inherits';
> > >
> > > For example I get the followings in my environment.
> > > 1) oid = 18720
> > > 2) relfilenode(==oid) = 16567;
> > >
> > > and I could find a $PGDATA/base/18720/16567 file.
> > > Could you find such a file ?
> >
> > No. I do have the db directory, and all of the other file for the existing
> > classes, but not this.
> >
>
> Just a confirmation. What is a result of the second query
> in your current environment ?

I got exactly what I would expect in a working PG db: the oid and
relfilenode matched, and were OIDs in the range of the other system tables
in the directory.

--
Joel Burton <jburton(at)scw(dot)org>
Director of Information Systems, Support Center of Washington