Robert Haas <robertmhaas@gmail.com> writes:
> I don't have strong feelings about this. Technically, this issue
> affects 9.5 also, because pqmq.c was introduced in that release. I
> don't think we want to add another error field in a released branch.
> However, since there's no parallel query in 9.5, only people who are
> accessing that functionality via extension code would be affected,
> which might be nobody and certainly isn't a lot of people, so we could
> just leave this unfixed in 9.5.
After sleeping on it, I think the right answer is to introduce the new
error-message field (and not worry about 9.5). Will work on a patch
for that, unless I hear objections pretty soon.
regards, tom lane