Robert Haas <robertmhaas@gmail.com> writes:
> On Wed, Feb 2, 2022 at 3:08 AM Amit Langote <amitlangote09@gmail.com> wrote:
>> Attached patch removes those.
> Looks right to me. Tom, any comments?
I'm pretty sure I left those comments alone on purpose back in 2007,
and I don't find simply removing them to be an improvement.
In principle, readers might expect that tree walkers/mutators
would descend to a SubPlan's query, as they do for a SubLink's
query. Calling out the fact that that doesn't happen seems
useful to me. If you don't like this particular wording of those
comments, we can discuss better wordings ... but I doubt that
nothing-at-all is better.
regards, tom lane