Re: Skipping schema changes in publication

[vignesh C]

On Tue, 10 Mar 2026 at 10:25, Amit Kapila <amit.kapil...@gmail.com> wrote:
>
> On Mon, Mar 9, 2026 at 4:23 PM vignesh C <vignes...@gmail.com> wrote:
> >
> > This is addressed in the v60 version patch attached.
> > Also Nisha's comments from [1] and Shveta's comments from [2] are
> > handled in the v60 version.
> >
>
> *
> + /* Check that user is allowed to manipulate the publication. */
> + if (excepttables && !pubform->puballtables)
> + ereport(ERROR,
> + errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
> + errmsg("publication \"%s\" is not defined as FOR ALL TABLES",
> +    NameStr(pubform->pubname)),
> + errdetail("Except tables cannot be added to or dropped from
> publications that are not defined as FOR ALL TABLES."));
> +
> + /*
> + * SET ALL TABLES is allowed only for publications defined as FOR ALL
> + * TABLES.
> + */
> + if (stmt->action == AP_SetObjects && !pubform->puballtables &&
> + !tables && !excepttables && !schemaidlist)
> + ereport(ERROR,
> + errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
> + errmsg("publication \"%s\" is not defined as FOR ALL TABLES",
> +    NameStr(pubform->pubname)));
> +
> + /* Only a superuser can add or remove EXCEPT tables */
> + if (stmt->action == AP_SetObjects &&
> + (excepttables || (!tables && !excepttables && !schemaidlist)) &&
> + !superuser())
> + ereport(ERROR,
> + errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
> + errmsg("must be superuser to add or drop except tables"));
>
> All the above checks are trying to drive the answer to whether the new
> Alter statement is for_all_tables via indirect checks. Why not keep
> for_all_tables boolean variable in AlterPublicationStmt similar to
> CreatePublicationStmt? That should simplify the above checks.
>
> * Also, the superuser check should be earlier in the code, say just
> after following existing check:
> if ((stmt->action == AP_AddObjects || stmt->action == AP_SetObjects) &&
> schemaidlist && !superuser())
> ereport(ERROR,
> (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
> errmsg("must be superuser to add or set schemas")));

Thanks for the comments, these are addressed in the v61 version patch attached.

Regards,
Vignesh

v61-0001-Add-support-for-EXCEPT-TABLE-in-ALTER-PUBLICATIO.patch
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