Sorry for the delay in responding to this matter as I have been waiting for another similar subject to approved by a moderator.
Upon review, I am satisfied with the proposed solution and believe that checking absolute path is better than hard coding with "pg_tblspc/". I think we have successfully resolved this issue in the pg_rewind case.
However, I would like to bring your attention to another issue: pg_upgrade fails with in-place tablespace. Another issue is still waiting for approved. I have tested all the tools in src/bin with in-place tablespace, and I believe this is the final issue.
抄 送：pgsql-hackers <pgsql-hackers@lists.postgresql.org>; Thomas Munro <thomas.munro@gmail.com>
主 题：Re: pg_rewind fails with in-place tablespace
On Fri, Jul 28, 2023 at 04:54:56PM +0900, Michael Paquier wrote: > I am finishing with the attached. Thoughts?
Applied this one as bf22792 on HEAD, without a backpatch as in-place tablespaces are around for developers. If there are opinions in favor of a backpatch, feel free of course. -- Michael