On 16 Sep 2026, Melanie Plageman wrote:
> Vacuum works very hard to never end up with
> PD_ALL_VISIBLE cleared and the VM set. Perhaps we should do everything
> we can to avoid this happening with page modifications as well.
Would it be practical to assert that the VM all-visible bit is clear
whenever we clear PD_ALL_VISIBLE? There may be reasons we don't already
do this that I'm missing, especially during recovery when pages can be
ahead of the record being replayed. It seems like a useful check if we
can find the right conditions for it.
Thank you!
Best regards, Andrey Borodin.
