| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Noah Misch <noah(at)leadboat(dot)com> |
| Cc: | Richard Guo <guofenglinux(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, Jacob Brazeal <jacob(dot)brazeal(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org, underdog(at)theori(dot)io |
| Subject: | Re: remove_useless_joins vs. bug #19560 |
| Date: | 2026-09-27 16:32:12 |
| Message-ID: | 330465.1790526732@sss.pgh.pa.us |
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| Thread: | |
| Lists: | pgsql-hackers |
I wrote:
> Concretely, about like this. This fixes the given reproducer.
> I've not put thought into what sort of test cases we might want
> to add.
Now with test cases, a commit message explaining why do it like
this, and a bit of additional comment-polishing.
regards, tom lane
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Prevent-self-join-elimination-when-RTEs-checkAsUs.patch | text/x-diff | 10.3 KB |
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