On Wed, Jan 11, 2023 at 1:48 AM Aleksander Alekseev
<aleksander@timescale.com> wrote:
> After reading [1] carefully it looks like we shouldn't worry about
> this. The upgrade procedure explicitly requires to run `pg_ctl stop`
> during step 8 of the upgrade procedure, i.e. not in the immediate mode
> [2].
Yeah, pg_upgrade will briefly start and stop the old server to make
sure all the WAL is replayed, and won't transfer any of the files
over. AFAIK, major-version WAL changes are fine; it was the previous
claim that we could do it in a minor version that I was unsure about.
Thanks!
--Jacob