On Wed, May 16, 2018 at 4:54 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Alexander Korotkov <a.korotkov@postgrespro.ru> writes: > On Wed, May 16, 2018 at 1:41 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote: >> Perhaps there is a case for adding an additional flag to allow specifying >> "I can't support ORDER BY DESC", but I'm not in a big hurry to do so. >> I think there would be more changes than this needed to handle such a >> restriction, anyway.
> OK, got it. We'll probably propose a patch implementing that to the > next commitfest.
If you do, it wouldn't be a bad idea to try to clarify the existing code and docs around this point. I'm thinking that amcanbackward is misleadingly named; maybe we should rename it as part of the change?
I was thinking about naming new property as amcanorderbydesc,
which is kind of non-overlapping with amcanbackward. For sure,
amcanbackward could be renamed, but I don't have ideas of better
