Re: pgsql: Check for conflicting queries during replay of gistvacuumpage() - Mailing list pgsql-hackers

Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> Hmmm, I'm fairly sure you should have bumped XLOG_PAGE_MAGIC for this
> change.  Otherwise, what is going to happen to an unpatched standby (of
> released versions) that receives the new WAL record from a patched
> primary?

We can't change XLOG_PAGE_MAGIC in released branches, surely.

I think the correct thing is just for the release notes to warn people
to upgrade standby servers first.

            regards, tom lane