On 15 Aug 2002 at 11:45, Tom Lane wrote:
> "Jules Alberts" <jules.alberts@arbodienst-limburg.nl> writes:
> > Sorry, I wasn't quite clear. The problem isn't that the references get
> > lost, but that the actual OIDs of the blobs change.
>
> Yes, they will, and there's not anything you can do to prevent it.
> What is supposed to happen is that pg_restore should update your
> CUST_BLOBS table to contain new blob OIDs instead of old ones.
> It builds a map from the old OIDs, which it can see in the dump file, to
> the new ones that get assigned on-the-fly as the blobs are loaded. Then
> it looks through the database for OID columns, and substitutes new blob
> OIDs wherever it can find a match to the list of old OIDs.
Again something learned :-)
I tested it, it works just like you said. Thanks a lot!