David Rowley <dgrowle...@gmail.com> writes: > On Mon, 5 Oct 2020 at 06:29, Tom Lane <t...@sss.pgh.pa.us> wrote: >> I'm unsure whether to back-patch either of these. They both seem to be >> just latent bugs so far as the core code is concerned, but the first one >> in particular seems like something that could bite extension code. >> Thoughts?
> That's a good question. I'm leaning towards backpatching both of them. > The 2nd is new as of v13, so it does not seem unreasonable that > someone has just not yet stumbled on it with some extension that adds > extra child ECs. I can imagine a use case for that, by getting rid of > needless equality quals that duplicate the partition constraint. The > fix for the first just seems neater/faster/correct, so I can't really > see any reason not to backpatch it. Yeah, that's my conclusion too after sleeping on it. Pushed, thanks for reviewing. regards, tom lane