Re: Adjust comments for `IndexOptInfo` to accurately reflect indexcollations's length

David Rowley <dgrowleyml@gmail.com>

From: David Rowley <dgrowleyml@gmail.com>

To: Junwang Zhao <zhjwpku@gmail.com>

Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2025-11-23T22:52:21Z

Lists: pgsql-hackers

On Sun, 23 Nov 2025 at 01:44, Junwang Zhao <zhjwpku@gmail.com> wrote:
> Length of indexcollations[] in `IndexOptInfo` is nkeycolumns, but
> struct comments fail to express this, it says:
>
> indexkeys[], indexcollations[] each have ncolumns entries.
>
> So we should polish this description. trivial patch attached.

Thanks. I agree with the patch.  We should probably mention
canreturn[] too. I can take care of this.

David