| From: | David Christensen <david(dot)christensen(at)crunchydata(dot)com> |
|---|---|
| To: | David Rowley <dgrowleyml(at)gmail(dot)com> |
| Cc: | PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org>, David Rowley <drowley(at)postgresql(dot)org> |
| Subject: | Re: ResultCache cache error: "cache entry already complete" in 14beta1 |
| Date: | 2021-05-21 14:00:02 |
| Message-ID: | CAOxo6XKDDMwBV3co69s_DEfRTXCPqnvkO-sNOR3xV9W19TkzEw@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Thu, May 20, 2021 at 6:35 PM David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> On Fri, 21 May 2021 at 11:05, David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> > I'll need to take a bit more time to check if that's a safe way to
> > check if the entire join clause is parameterized or not.
>
> I think it's fine to check the list_length() to see if any quals are
> missing from the param info. This is very similar to what's done
> already in generate_mergejoin_paths() to check if any join quals are
> missing from the merge quals.
>
> I've attached a cleaned-up patch.
I can confirm that this fixes the issue in our case (both in the actual
query and in the minimal reproduction case).
Thanks!
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