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From: Amit Kapila <amit.kapila16@gmail.com>
Date: Tue, 16 Jun 2026 16:38:03 +0530
Message-ID: 
 <CAA4eK1JDcANGYEkMpecE5us1tpTF01cyLOT2uLrO4e-CzESPbw@mail.gmail.com>
Subject: Re: Support EXCEPT for TABLES IN SCHEMA publications
To: Peter Smith <smithpb2250@gmail.com>
Cc: Nisha Moond <nisha.moond412@gmail.com>,
 Zsolt Parragi <zsolt.parragi@percona.com>,
	pgsql-hackers@lists.postgresql.org
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On Tue, Jun 16, 2026 at 12:06=E2=80=AFPM Peter Smith <smithpb2250@gmail.com=
> wrote:
>
> On Tue, Jun 16, 2026 at 2:36=E2=80=AFPM Amit Kapila <amit.kapila16@gmail.=
com> wrote:
> >
> > No, I don't think this is a bug for PG19 and the new behaviour for
> > PG20 is intentional and required because in this case, the EXCEPT
> > clause is schema-scoped, so once schema is changed, the table should
> > be removed from the exclusion list. OTOH, in PG19, the exclusion list
> > follows the table-level exclusion based on its OID as we can see in
> > the example provided by you. I think we can consider adding a line for
> > this in docs if you and others feel that such explicit mention can
> > avoid ambiguity around this. How about something like the following as
> > a separate para in EXCEPT clause description: Once a table is
> > excluded, the exclusion applies to that table itself, regardless of
> > its name or schema. Renaming the table or moving it to another schema
> > with <command>ALTER TABLE ... SET SCHEMA</command> does not cancel the
> > exclusion."
> >
>
> OK. The explanatory text LGTM.
>
> What's the next step? Should I create a new thread/patch to deal with thi=
s?
>

WFM.

--=20
With Regards,
Amit Kapila.