"=?utf-8?B?aW9zaWY=?=" <852048472(at)qq(dot)com> writes:
> The following snippet is cited from version 15.14, function check_outerjoin_delay()
> ...
> The check at line 2074 is redundant and can be safely removed.
I'm not entirely sure whether I believe that ... but it doesn't
matter. Since check_outerjoin_delay is gone entirely in v16 and
later, we're unlikely to take the risk of changing it in older
branches.
regards, tom lane