Tobias Wendorff <tobias(dot)wendorff(at)tu-dortmund(dot)de> writes:
> To keep a long discussion short: you classify it as a wontfix.
> Since I've already supplied a workaround (using a subquery or CTE),
> let's close it.
[ shrug... ] If you intend to take such a totally uncooperative
approach, then I can't help you.
I did *not* say this is a "wontfix". I said it's not easy to fix.
There is a large difference. What I was wondering about was whether
we could find an easier change that would help your actual use-case.
But, since you're not seeing fit to provide further detail, you'll
just have to wait till we can create a fix for the case as presented.
That's likely to be a year or two down the pike.
regards, tom lane