"Mikko Partio" <mpartio(at)gmail(dot)com> writes:
> On Tue, Apr 8, 2008 at 6:38 PM, Zdenek Kotala <Zdenek(dot)Kotala(at)sun(dot)com> wrote:
>> It is really strange. It would be nice to have reproduce scenario. Can you
>> run same DDL command which invoke a catalog corruption on test database
>> cluster?
> I tried it on a fresh instance but it went through with no errors :(
Is it possible that anything was doing a VACUUM FULL on pg_class
concurrently with your schema changes on these tables? The behavior
looks suspiciously like some problems we've seen before wherein rows
ended up with the wrong commit-bit markings...
regards, tom lane