On 8/11/21 1:35 PM, Peter Geoghegan wrote:
> On Wed, Aug 11, 2021 at 9:32 AM Jonathan S. Katz <jkatz@postgresql.org> wrote:
>> Please ensure you have your feedback in no later than midnight today
>> (Aug 11) AoE[1].
>
> I think that the pg_upgrade item should say that we now avoid forcing
> an anti-wraparound VACUUM on upgrade. This was never necessary.
How about:
* `pg_upgrade` now carries forward the old installation's `oldestXID`
value, which can improve things from a performance standpoint by no
longer forcing an anti-wraparound `VACUUM`.
?
Jonathan
