| From: | Richard Guo <guofenglinux(at)gmail(dot)com> |
|---|---|
| To: | David Rowley <dgrowleyml(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Wrong results with grouping sets |
| Date: | 2024-10-10 09:51:12 |
| Message-ID: | CAMbWs4-+bgaaGPCKr14q5L4v3neqx2te31_O8QJN61XY7i7x-A@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Oct 10, 2024 at 4:06 PM Richard Guo <guofenglinux(at)gmail(dot)com> wrote:
> While we can fix this issue by propagating the hasGroupRTE mark from
> the EXISTS subquery to the parent, a better fix might be to remove the
> subquery's RTE_GROUP entry, since we have dropped the subquery's
> groupClause before the pull-up (see simplify_EXISTS_query).
Here is the patch.
Thanks
Richard
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Remove-the-RTE_GROUP-RTE-if-we-drop-the-groupClause.patch | application/octet-stream | 3.7 KB |
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