Re: pg_dump and pgpool

Scott Marlowe <smarlowe(at)g2switchworks(dot)com> writes:
> On Wed, 2004-12-29 at 16:11, Tom Lane wrote:
>> I would like to know exactly what pgpool has done to break pg_dump.

> What's happening is that there are two databases behind pgpool, and each
> has managed to assign a different (set of) OID(s) to the table(s). So,
> when pg_dump asks for an OID, it gets two different ones.

Mph. I'd have zero confidence in a dump taken under such circumstances,
anyway. If pgpool can't duplicate OIDs (which I agree it probably
can't) then it's unlikely to be able to make the databases match closely
enough to satisfy pg_dump in other ways. I'd worry about
synchronization issues to start with...

I don't think we should make pg_dump slower and possibly less reliable
in order to support a fundamentally dangerous administration procedure.
Run pg_dump directly into the database, not through pgpool.

regards, tom lane