On Fri, 18 Sept 2026 at 13:52, Tender Wang <tndrwang@gmail.com> wrote:
>
> I also noticed the following part of the comment at the beginning of
> `ExecMerge()`:
>
> If the target tuple gets deleted or a concurrent update causes the join
> quals to fail, it returns a matched status of false and we call
> ExecMergeNotMatched().
>
> With this change, perhaps this part of the comment should also be
> adjusted to distinguish an original `WHEN MATCHED` case from an
> original `WHEN NOT MATCHED BY SOURCE` case.
>
> Do you think it's worth updating this comment as part of the patch?
OK, here is an update doing that.
Since a new v19 beta is about to be released, I'll hold off on pushing
this until later next week.
Regards,
Dean
