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help / color / mirror / Atom feedFrom: Alexander Korotkov <aekorotkov@gmail.com>
To: Andrei Lepikhov <lepihov@gmail.com>
Cc: Kirill Reshke <reshkekirill@gmail.com>
Cc: Tender Wang <tndrwang@gmail.com>
Cc: Fujii Masao <masao.fujii@gmail.com>
Cc: ammmkilo@163.com
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19435: Error: "No relation entry for relid 2" Triggered by Complex Join with Self-Referencing Tables
Date: Fri, 20 Mar 2026 16:02:10 +0200
Message-ID: <CAPpHfdsrmAg+aqpjAF4Fdp2c59-dFmwBuNLhNqrxzTguiAKf=w@mail.gmail.com> (raw)
In-Reply-To: <CAPpHfdsyNYEbjjLdsa8i8Ds-5=4pFif1+uCHn3vwzx2Pq5y29A@mail.gmail.com>
References: <19435-3cc1a87f291129f1@postgresql.org>
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On Thu, Mar 19, 2026 at 3:03 PM Alexander Korotkov <aekorotkov@gmail.com> wrote:
> On Thu, Mar 19, 2026 at 9:18 AM Andrei Lepikhov <lepihov@gmail.com> wrote:
> > On 18/3/26 18:55, Kirill Reshke wrote:
> > > On Wed, 18 Mar 2026 at 18:31, Andrei Lepikhov <lepihov@gmail.com> wrote:
> > >>
> > >> On 18/3/26 13:21, Alexander Korotkov wrote:
> > >>> On Wed, Mar 18, 2026 at 2:18 PM Andrei Lepikhov <lepihov@gmail.com> wrote:
> > >>>> What is the reason for the second change? Tender, can you show us how to
> > >>>> reproduce the issue so we can support your update to
> > >>>> restrict_infos_logically_equal? If we include it, we should add a test.
> > >>>
> > >>> I think Tender already shown this in [1]. The same qual is present
> > >>> twice in the plan.
> > >> Got it. I suggest making this a separate commit to keep the history
> > >> clear. Let me share a draft with a test case for the bug fix first.
> > > Hi!
> > > Is `cool_bool` a typo of `col_bool` in regression test ?
> >
> > This is actually a happy coincidence, not a typo. We made this mistake
> > during initial development because I didn't realise that a boolean
> > operation on a bool variable is never wrapped in an expression
> > structure. It's a 'cool' example that shows a rare edge case.
> >
> > > And the patch seems to have forgotten to add "Reported by".
> >
> > Yeah, let the committer manage the award part.
>
> I've revised the patch. Renamed cool_bool to cool_col, added
> "Reported by", and revised authors list according to my opinion.
OK. I've pushed this. Let's go back to
restrict_infos_logically_equal(). I'm still not convinced that we
need to check if required_relids is singleton. Why we can ignore
outer_relids for singleton, but can't do if, for instance, two
relations involved?
------
Regards,
Alexander Korotkov
Supabase
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To: pgsql-bugs@postgresql.org
Cc: aekorotkov@gmail.com, lepihov@gmail.com, reshkekirill@gmail.com, tndrwang@gmail.com, masao.fujii@gmail.com, ammmkilo@163.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19435: Error: "No relation entry for relid 2" Triggered by Complex Join with Self-Referencing Tables
In-Reply-To: <CAPpHfdsrmAg+aqpjAF4Fdp2c59-dFmwBuNLhNqrxzTguiAKf=w@mail.gmail.com>
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