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Re: Skip a redundant singleton GROUP BY node - Mailing list pgsql-hackers

From David Rowley
Subject Re: Skip a redundant singleton GROUP BY node
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Msg-id CAApHDvr+MyDaborAxz=EauZXQTnMM3V7MDBHnrHa-2q_WQd++Q@mail.gmail.com
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In response to Re: Skip a redundant singleton GROUP BY node  ("zengxx" <xiangxin_zeng@qq.com>)
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On Fri, 9 Oct 2026 at 13:49, zengxx <xiangxin_zeng@qq.com> wrote:
> The proof is still intentionally narrow.

There is a much more sophisticated patch that can do what you're
proposing here plus lots more in [1]. I suggest you abandon this patch
in favour of reviewing that one.

David.

[1] https://commitfest.postgresql.org/patch/7045/

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