| From: | David Rowley <dgrowleyml(at)gmail(dot)com> |
|---|---|
| To: | jian he <jian(dot)universality(at)gmail(dot)com> |
| Cc: | Zhang Mingli <zmlpostgres(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Remove useless GROUP BY columns considering unique index |
| Date: | 2024-11-29 02:39:03 |
| Message-ID: | CAApHDvrJjL3fLGoNh5QnPKx4b8ckDbAXeY1H+E6smFj8cULORQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, 29 Nov 2024 at 15:02, David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> I've attached an updated patch that gets rid of the
> get_unique_not_null_attnos() function completely and uses the
> RelOptInfo.indexlist and RelOptInfo.notnullattnums.
I forgot to do a local commit before sending v8. Fixed in the attached v9.
David
| Attachment | Content-Type | Size |
|---|---|---|
| v9-0001-remove-useless-group-by-columns-via-unique-not-nu.patch | application/octet-stream | 21.6 KB |
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