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 <yoli(at)ebay(dot)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-96B8-21D928C8E711@yandex-team.ru