Re: dead code in pg_upgrade

Nathan Bossart <nathandbossart@gmail.com> writes:
> I noticed that the condition it's referring to
>         if (strlen(old_cluster.tablespace_suffix) == 0)
> doesn't appear to have been reachable since support for upgrading from
> pre-9.2 was removed in v15 (commit e469f0a).  Before then, this case seems
> to have only applied to upgrades from v8.4 or older versions.

> I'm planning to commit the attached patch shortly after I double-check that
> I'm not missing anything.

+1.  e469f0aaf just removed code that was immediately connected to a
version check; I didn't look too hard for consequent simplifications.
After looking, I concur that tablespace_suffix can never be empty
anymore.  I don't see any other spots checking this condition.

            regards, tom lane