Hi hackers, > In this part, I suppose you've found a definite bug. Thanks! There are a > couple > of ways how it could be fixed: > > 1. If we enforce checkpoint at replica promotion then we force full-page > writes after each page modification afterward. > > 2. Maybe it's worth using BufferDesc bit to mark the page as converted to > 64xid but not yet written to disk? For example, one of four bits from > BUF_USAGECOUNT. > BM_MAX_USAGE_COUNT = 5 so it will be enough 3 bits to store it. This will > change in-memory page representation but will not need WAL-logging which is > impossible on a replica. > > What do you think about it?
I'm having difficulties merging and/or testing v8-0002-Add-64bit-xid.patch since I'm not 100% sure which commit this patch was targeting. Could you please submit a rebased patch and/or share your development branch on GitHub? I agree with Bruce it would be great to deliver this in PG15. Please let me know if you believe it's unrealistic for any reason so I will focus on testing and reviewing other patches. For now, I'm changing the status of the patch to "Waiting on Author". -- Best regards, Aleksander Alekseev
