Re: preserving db/ts/relfilenode OIDs across pg_upgrade (was Re: storing an explicit nonce)

On Wed, Apr 20, 2022 at 4:56 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Having just had to bury my nose in renumber_oids.pl, I thought of a
> different approach we could take to expose these OIDs to Catalog.pm.
> That's to invent a new macro that Catalog.pm recognizes, and write
> something about like this in pg_database.h:
>
> DECLARE_OID_DEFINING_MACRO(Template0ObjectId, 4);
> DECLARE_OID_DEFINING_MACRO(PostgresObjectId, 5);
>
> If that seems more plausible to you I'll set about preparing a patch.

I like it!

-- 
Robert Haas
EDB: http://www.enterprisedb.com