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In-Reply-To: 
 <CALDaNm2Dd2Pi2yMVWZcb_QKycD_5+DktOXukXt+sDr-OKL+4Ww@mail.gmail.com>
From: Dilip Kumar <dilipbalaut@gmail.com>
Date: Tue, 16 Jun 2026 09:55:55 +0530
Message-ID: 
 <CAFiTN-sHAv2v53QDosvDADzggEUVSkjXCNp0JCkmMKdnfXxvNg@mail.gmail.com>
Subject: Re: Proposal: Conflict log history table for Logical Replication
To: vignesh C <vignesh21@gmail.com>
Cc: Amit Kapila <amit.kapila16@gmail.com>,
 shveta malik <shveta.malik@gmail.com>,
	Nisha Moond <nisha.moond412@gmail.com>, Peter Smith <smithpb2250@gmail.com>,
	Masahiko Sawada <sawada.mshk@gmail.com>,
	Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>,
	PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Archived-At: 
 <https://www.postgresql.org/message-id/CAFiTN-sHAv2v53QDosvDADzggEUVSkjXCNp0JCkmMKdnfXxvNg%40mail.gmail.com>
Precedence: bulk

On Tue, Jun 16, 2026 at 9:27=E2=80=AFAM vignesh C <vignesh21@gmail.com> wro=
te:
>
> On Mon, 15 Jun 2026 at 14:20, Amit Kapila <amit.kapila16@gmail.com> wrote=
:
> >
> > > 2. Views are disallowed, but functions are allowed
> > > Creating a view in the pg_conflict schema is rejected:
> > > postgres=3D# CREATE VIEW v1 AS
> > > SELECT * FROM pg_conflict.pg_conflict_log_16435;
> > > ERROR:  permission denied to create "pg_conflict.v1"
> > > DETAIL:  Conflict schema modifications are currently disallowed.
> > >
> > > However, creating a function in the same schema succeeds:
> > > CREATE FUNCTION pg_conflict.get_conflict_count()
> > > RETURNS bigint
> > > LANGUAGE sql
> > > AS $$
> > >     SELECT count(*) FROM pg_conflict.pg_conflict_log_16404;
> > > $$;
> > > CREATE FUNCTION
> > >
> >
> > This is okay because the function is doing SELECT which we allow on
> > these tables.
>
> Shouldn=E2=80=99t creating a view also be allowed for the same reason?
>
> The function is permitted because it only performs a SELECT on the
> conflict log table, and such read operations are allowed. A view
> likewise represents a stored query definition and does not modify the
> conflict schema or its underlying tables. Given that direct queries on
> the conflict log tables are already permitted, allowing users to
> define views over them is consistent with the same rationale applied
> to functions.

Whats is the behavior of toast table w.r.t the function vs view?

--=20
Regards,
Dilip Kumar
Google