Re: remove useless comments

Fair enough, the rephased version of the comments is in the attachment,
please take a look.

--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -1583,8 +1583,8 @@ getInstallationPaths(const char *argv0)
FreeDir(pdir);

/*
- * XXX is it worth similarly checking the share/ directory? If the lib/
- * directory is there, then share/ probably is too.
+ * It's not worth checking the share/ directory. If the lib/ directory
+ * is there, then share/ probably is too.
*/
}

On Tue, Aug 9, 2022 at 11:50 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> Junwang Zhao <zhjwpku(at)gmail(dot)com> writes:
> > The comments considering checking share/ directory was there for
> > almost 13 years, yet nobody ever trying to add the checking, and
> > there seems never any trouble for not checking it, then I think
> > we should remove those comments.
>
> I think that comment is valuable. It shows that checking the
> sibling directories was considered and didn't seem worthwhile.
> Perhaps it should be rephrased in a more positive way (without XXX),
> but merely deleting it is a net negative because future hackers
> would have to reconstruct that reasoning.
>
> BTW, we're working in a 30+-year-old code base, so the mere fact
> that a comment has been there a long time does not make it bad.
>
> regards, tom lane

--
Regards
Junwang Zhao