Re: [(known) BUG] DELETE/UPDATE more than one row in partitioned foreign table

On Mon, Jun 1, 2026 at 7:44 PM Etsuro Fujita <etsuro(dot)fujita(at)gmail(dot)com> wrote:
> I think we should first work on a back-patchable solution. So I'd
> like to re-propose the patch that I proposed in this thread before to
> disallow UPDATE/DELETE in problematic cases [1]. Attached is a new
> version of the patch. Changes are:
>
> * Renamed the new table option inherited to remotely_inherited, to
> avoid confusion with local inheritance.
> * Moved the logic to prevent problematic UPDATE/DELETE from a planner
> function to an executor function, to avoid throwing an error
> unnecessarily when there are no target rows to update/delete.
> * Added docs to postgres-fdw.sgml.
>
> I'm planning to add the postgresImportForeignSchema() support in the
> next version.

I created the patch to add that support on top of the patch I sent in
a previous email, which I'm attaching along with the base patch. It's
the same as before, except that I fixed a typo in docs pointed out by
Michael-san off-list.

Comments welcome!

Best regards,
Etsuro Fujita