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In-Reply-To: 
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From: Peter Smith <smithpb2250@gmail.com>
Date: Tue, 16 Jun 2026 18:23:25 +1000
Message-ID: 
 <CAHut+PvAzsQA7BPKFC2dKWAr_kpAdHhLAaGOJQmZ_7=0paZCZA@mail.gmail.com>
Subject: Re: Support EXCEPT for TABLES IN SCHEMA publications
To: Nisha Moond <nisha.moond412@gmail.com>
Cc: Amit Kapila <amit.kapila16@gmail.com>,
 Zsolt Parragi <zsolt.parragi@percona.com>,
	pgsql-hackers@lists.postgresql.org
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Archived-At: 
 <https://www.postgresql.org/message-id/CAHut%2BPvAzsQA7BPKFC2dKWAr_kpAdHhLAaGOJQmZ_7%3D0paZCZA%40mail.gmail.com>
Precedence: bulk

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.

======
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...

~~~

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\""

======
[1] https://www.postgresql.org/message-id/CAA4eK1J_QP8CXCshaCy_01ALQQrDSzoTHfXKcAbjiEvV-RkOOw%40mail.gmail.com

Kind Regards,
Peter Smith.
Fujitsu Australia