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Re: Change copyObject() to use typeof_unqual

Jelte Fennema <postgres@jeltef.nl>

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From: "Jelte Fennema-Nio" <postgres@jeltef.nl>
To: "Tom Lane" <tgl@sss.pgh.pa.us>
Cc: "Peter Eisentraut" <peter@eisentraut.org>, "pgsql-hackers" <pgsql-hackers@postgresql.org>
Date: 2026-03-15T23:57:17Z
Lists: pgsql-hackers

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On Sun, 15 Mar 2026 at 23:13, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
> "Jelte Fennema-Nio" <postgres@jeltef.nl> writes:
> > If not, then I'm starting to think that actually checking support for
> > this feature for CLANG is probably easier to understand (and less
> > fragile) than combining all of these tricks together. Attached is a
> > patch to do so.
>
> +1 for concept, but don't you need to fix meson.build too?

I believe that we don't have fully working bc compilation for meson[1],
so I'm not entirely sure how to test out if it actually works. But the
attached now does *something* for meson too at least.

[1]: https://www.postgresql.org/message-id/flat/206b001d-1884-4081-bd02-bed5c92f02ba%40eisentraut.org

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Add some const qualifiers enabled by typeof_unqual change on copyObject

  2. Hardcode typeof_unqual to __typeof_unqual__ for clang

  3. Clean up postgres_fdw/t/010_subscription.pl.

  4. Hardcode override of typeof_unqual for clang-for-bitcode

  5. Make typeof and typeof_unqual fallback definitions work on C++11

  6. Change copyObject() to use typeof_unqual

  7. Fixes for C++ typeof implementation

  8. Support using copyObject in standard C++