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In-Reply-To: 
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From: Amit Kapila <amit.kapila16@gmail.com>
Date: Mon, 25 Aug 2025 10:32:12 +0530
Message-ID: 
 <CAA4eK1KKh1VyBSkipxRZp=2QWj6U6McyUOMmqqmofGLUGDh4QQ@mail.gmail.com>
Subject: Re: [BUG?] check_exclusion_or_unique_constraint false negative
To: Mihail Nikalayeu <mihailnikalayeu@gmail.com>
Cc: "Zhijie Hou (Fujitsu)" <houzj.fnst@fujitsu.com>,
 Peter Geoghegan <pg@bowt.ie>,
	"Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com>,
	PostgreSQL Hackers <pgsql-hackers@postgresql.org>,
 Andres Freund <andres@anarazel.de>
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On Fri, Aug 22, 2025 at 9:12=E2=80=AFPM Mihail Nikalayeu
<mihailnikalayeu@gmail.com> wrote:
>
> Amit, a few more explanations related to your message.
>
> > IIUC, the problem you are worried about can happen with DELETE+INSERT
> > in the same transaction on the subscriber, right?
>
> Technically, yes - this can occur during a single UPDATE, as well as a
> DELETE followed by an INSERT of the same key within the same
> transaction (which is effectively equivalent to an UPDATE).
>

BTW, then isn't it possible that INSERT happens on a different page?

--=20
With Regards,
Amit Kapila.