On Fri, May 17, 2024 at 1:18 PM Pavel Stehule <pavel.steh...@gmail.com> wrote: > pá 17. 5. 2024 v 18:02 odesílatel Peter Geoghegan <p...@bowt.ie> napsal: >> You've shown an inconsistency between the primary and standby with >> respect to the heap tuple infomask bits related to freezing. It looks >> like a FREEZE WAL record from the primary was never replayed on the >> standby. > > > It think is possible so broken tuples was created before upgrade from > Postgres 15 to Postgres 16 - not too far before, so this bug can be side > effect of upgrade
I half suspected something like that myself. Maybe the problem happened *during* the upgrade, even. There have been historical bugs affecting pg_upgrade and relfrozenxid. Commit 74cf7d46 is one good example from only a few years ago. -- Peter Geoghegan
