Re: Issue with query_is_distinct_for() and grouping sets - Mailing list pgsql-hackers

From Richard Guo
Subject Re: Issue with query_is_distinct_for() and grouping sets
Date
Msg-id CAMbWs49HrvGcVqX7YBFkU0o9ev_-9Xq=PySUfv-4winKye_6fg@mail.gmail.com
Whole thread Raw
In response to Re: Issue with query_is_distinct_for() and grouping sets  (David Rowley <dgrowleyml@gmail.com>)
List pgsql-hackers
On Thu, Oct 23, 2025 at 1:33 PM David Rowley <dgrowleyml@gmail.com> wrote:
> On Thu, 23 Oct 2025 at 16:43, Richard Guo <guofenglinux@gmail.com> wrote:
> > How about using the following wording in the commit message?
> >
> > "
> > The previous logic in query_is_distinct_for() was incomplete because
> > the check was insufficiently thorough and could return false when it
> > should have returned true.
> > "

> "it could" might be more accurate. The function is under no obligation
> to return true for every possible case.

Fair point.  Patch updated with a revised commit message.

- Richard

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