Hi,
On 2022-09-20 11:32:02 -0700, Nathan Bossart wrote:
> Note that this change also disallows XMAX_COMMITTED together with
> the special pre-v9.3 locked-only bit pattern that
> HEAP_XMAX_IS_LOCKED_ONLY checks for. This locked-only bit pattern
> may still be present on servers pg_upgraded from pre-v9.3 versions.
Given that fact, that aspect at least seems to be not viable?
Greetings,
Andres Freund