Re: plan shape work - Mailing list pgsql-hackers

Hi Robert,

On Fri, Sep 19, 2025 at 1:23 AM Robert Haas <robertmhaas@gmail.com> wrote:
>
> On Tue, Sep 16, 2025 at 11:27 AM Robert Haas <robertmhaas@gmail.com> wrote:
> > I'm inclined to change the code like this to fix it:
> >
> >     char       *replacement_type = "???";
> >
> > ...in the hopes of still producing a warning here if somebody adds
> > another label to the enum.
>
> Done in this version. I've also now gone back and rebased the rest of
> the patches as well, so this email includes all 7 patches instead of
> just the first 3. To recall, my goal for this CF was to get 1-4
> committed.
>
> --
> Robert Haas
> EDB: http://www.enterprisedb.com

I have a question about the following changes:

- splan = plan;
  if (IsA(plan, Result))
  {
  Result    *rplan = (Result *) plan;

- if (rplan->plan.lefttree == NULL &&
- rplan->resconstantqual == NULL)
- splan = NULL;
+ gplan->plan.lefttree = NULL;
+ gplan->relids = rplan->relids;
+ gplan->result_type = rplan->result_type;
  }

You set gplan->relids and gplan->result_type, but at the end you
returned &gplan->plan, what's the point of setting these two fields?


--
Regards
Junwang Zhao