Re: Support EXCEPT for TABLES IN SCHEMA publications

On Tue, Jun 16, 2026 at 1:53 PM Peter Smith <smithpb2250@gmail.com> wrote:
>
> Some review comments for v13-0001.
>
> ======
> doc/src/sgml/ref/create_publication.sgml
>
> 1.
>       <para>
>        Marks the publication as one that replicates changes for all tables in
>        the specified list of schemas, including tables created in the future.
> +      Tables listed in the <literal>EXCEPT</literal> clause for a given schema
> +      are excluded from the publication.
>       </para>
>
> Given Amit's suggestion [1] to modify the EXCEPT text for FOR ALL
> TABLES, perhaps there also needs to be an equivalent note for ALL
> TABLES IN SCHEMA. Maybe wait to see what happens [1], then you can use
> similar wording.
>

Okay, noted. Let's first wait for the conclusion on this.

> ======
> src/backend/commands/publicationcmds.c
>
> RemovePublicationExceptForRelation:
>
> 2.
> +/*
> + * Remove any EXCEPT clause entries for a relation from schema publications.
> + * Called when a table changes schema (ALTER TABLE ... SET SCHEMA), so that
> + * a schema-scoped exclusion does not silently follow the table to its new
> + * schema.
> + */
> +void
> +RemovePublicationExceptForRelation(Oid relid, Oid oldNspOid, Oid newNspOid)
> +{
>
> There's nothing about that function name to indicate it is only for
> SCHEMA publications.
> There must be a better -- e.g. 'MaybeRemoveExclusionFromSchemaPub', or
> whatever...
>

I've renamed it to RemoveSchemaPubExceptForRel to keep it consistent
with the neighboring function names. Let me know if it works.

> ~~~
>
> 3.
> + ereport(DEBUG2,
> + errmsg_internal("auto-drop exclusion of table %s from publication
> %s: table moved to schema %s",
> + quote_qualified_identifier(get_namespace_name(oldNspOid),
> +    get_rel_name(relid)),
> + get_publication_name(pubid, false),
> + quote_identifier(get_namespace_name(newNspOid))));
>
> Even though this is a debugging message, for consistency, we might as
> well quote everything the same as normal messages do:
>
> "auto-drop exclusion of table \"%s\" from publication \"%s\": table
> moved to schema \"%s\""
>

Fixed.
~~~

Also added a test as per Zsolt's suggestion at [1].
I moved all documentation changes into a separate 0004 patch to make
doc review easier.

Please find the attached v14 patches.

[1] https://www.postgresql.org/message-id/CAN4CZFPZnckA9-MPt6xj1QsRQTVKs3ZoKgdZ%2BQG1xa%3D%3DUD46Xw%40mail.gmail.com

--
Thanks,
Nisha