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In-Reply-To: 
 <CANhcyEUh9ki36VTXyYf8UqUrfLX9ZhfP_f2LjpvvycgqWLQqqQ@mail.gmail.com>
From: Peter Smith <smithpb2250@gmail.com>
Date: Fri, 7 Nov 2025 17:06:04 +1100
Message-ID: 
 <CAHut+Pv96u0VciuSx2B99jDHEvn7svVJynCmw-qYb=z4Kc2knA@mail.gmail.com>
Subject: Re: Skipping schema changes in publication
To: Shlok Kyal <shlok.kyal.oss@gmail.com>
Cc: vignesh C <vignesh21@gmail.com>, Amit Kapila <amit.kapila16@gmail.com>,
	"Zhijie Hou (Fujitsu)" <houzj.fnst@fujitsu.com>, YeXiu <1518981153@qq.com>,
	Ian Lawrence Barwick <barwick@gmail.com>,
	Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>,
	PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
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Precedence: bulk

Hi Shlok.

Some questions for the patch v25-0002 (EXCEPT tables)

======
doc/src/sgml/ref/alter_publication.sgml

1.
+ALTER PUBLICATION <replaceable class="parameter">name</replaceable>
ADD ALL TABLES [ EXCEPT [ TABLE ] ( <replaceable
class="parameter">exception_object</replaceable> [, ... ] ) ]

You can do both ADD/SET the <publication_object>, so really there
should be an ADD/SET ALL TABLES command as well, right?

~~~

2.
What was your reason for changing the syntax?
AFAICT those added "( )" are not strictly necessary, so I just
wondered your reason.

For example, we do not have any "( )" for <publication_object> [,...].
It is: ALTER PUBLICATION name ADD publication_object [, ...]
Not:   ALTER PUBLICATION name ADD (publication_object [, ...])

So in the same way we could have EXCEPT syntax like that:
ALTER PUBLICATION name ADD ALL TABLES [EXCEPT <table_exception_object> [, ...]]
Where table_exception_object is: [ TABLE ] [ ONLY ] table_name [ * ]

Currently, if the user just wants to exclude a single table they must do:
ALTER PUBLICATION name ADD ALL TABLES EXCEPT (t1);
instead of just ALTER PUBLICATION name ADD ALL TABLES EXCEPT t1;

~~~

3.
BTW, I think you may need to consider a <table_exception_object>
instead of a generic name like <exception_object>, because in the
future if we EXCEPT SEQUENCES the <exception_object> name may be not
appropriate because things like [ONLY] and [*] are not applicable for
sequences.

======
Kind Regards,
Peter Smith.
Fujitsu Australia