| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Richard Guo <guofenglinux(at)gmail(dot)com>, Aleksander Alekseev <aleksander(at)timescale(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Fix bogus Asserts in calc_non_nestloop_required_outer |
| Date: | 2024-01-06 00:03:32 |
| Message-ID: | CA+TgmoZGSmSkRA5ua-xF8_nJeKds6x2vHc0k8Q9C8-dSbdyBZQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Jan 5, 2024 at 4:36 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> I don't think I believe this code change, let alone any of the
> explanations for it. The point of these Asserts is to be sure that
> we don't form an alleged parameterization set that includes any rels
> that are included in the new join, because that would be obviously
> wrong. They do check that as they stand. I'm not sure what invariant
> the proposed revision would be enforcing.
Well, this explanation made sense to me:
--
Robert Haas
EDB: http://www.enterprisedb.com
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