Hi Yong! +1 to the idea to protect SLRUs from corruption. I'm slightly leaning towards the idea of separating checksums from data pages, but anyway this checksums are better than no checksums.
> On 7 Dec 2023, at 10:06, Li, Yong <y...@ebay.com> wrote: > > I am still working on patching the pg_upgrade. Just love to hear your > thoughts on the idea and the current patch. FWIW you can take upgrade code from this patch [0] doing all the same stuff :) Best regards, Andrey Borodin. [0] https://www.postgresql.org/message-id/b8f85f94-ecb0-484e-96b8-21d928c8e...@yandex-team.ru