Zdenek Kotala wrote:
Tom Lane wrote:

The right way to implement pg_upgrade is to transfer the catalog data
at the SQL-command level of abstraction, ie, "pg_dump -s" and reload.

I'm not sure if it is important, but I think that preserve OID is important and SQL level does not allow set OID.

Does it matter in any case other than where it refers to an on-disk object? And does that need anything other than a fixup to pg_class::relfilenode?



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