Re: More guidance on ctid

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Bernice Southey <bernice(dot)southey(at)gmail(dot)com>
Cc: pgsql-docs(at)lists(dot)postgresql(dot)org
Subject: Re: More guidance on ctid
Date: 2025-12-23 21:32:21
Message-ID: aUsKZRmXgvI-k5Nb@momjian.us
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-docs

On Tue, Dec 23, 2025 at 11:49:37AM +0000, Bernice Southey wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> > What I did do was to explain why ctid was safe in this
> > use-case. I also strengthened the documentation that ctid is not valid
> > for row references.
> I like this, explaining the risk is much better. I couldn't think of a
> simple way to do it.

Great.

> There was a strong preference for not duplicating the explanatory text
> when the examples were added. Perhaps delete doesn't need the new
> line?

Uh, where did you see that? I found the original thread and I don't see
any mention of a warning, or not wanting a warning:

https://www.postgresql.org/message-id/flat/CADkLM%3DcaNEQsUwPWnfi2jR4ix99E0EJM_3jtcE-YjnEQC7Rssw%40mail.gmail.com

I feel we need a warning specifically because people will find this
query, particularly in the very visible UPDATE/DELETE man pages, and not
realize ctid only has a few save use-cases.

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

Do not let urgent matters crowd out time for investment in the future.

In response to

Responses

Browse pgsql-docs by date

  From Date Subject
Next Message Bernice Southey 2025-12-23 22:27:55 Re: More guidance on ctid
Previous Message Bernice Southey 2025-12-23 11:49:37 Re: More guidance on ctid