Re: Skipping schema changes in publication - Mailing list pgsql-hackers

From Dilip Kumar
Subject Re: Skipping schema changes in publication
Date
Msg-id CAFiTN-t2is4AOsNMw6iUcn-9cRTSUyQgivkbVjAE-6LjuVHC2w@mail.gmail.com
Whole thread
In response to Re: Skipping schema changes in publication  (Shlok Kyal <shlok.kyal.oss@gmail.com>)
Responses Re: Skipping schema changes in publication
List pgsql-hackers
On Thu, Feb 19, 2026 at 10:13 AM Shlok Kyal <shlok.kyal.oss@gmail.com> wrote:
>
> Thanks for reviewing the patch. I have addressed the remaining
> comments in the v46 patch..
>
I am looking at the latest version some questions/comments

1.
GetRelationPublications()
{
..
for (int i = 0; i < pubrellist->n_members; i++)
{
+ if (pubrel->prexcept)
+ {
+ if (except_pubids)
+ *except_pubids = lappend_oid(*except_pubids, pubid);
+ }
+ else
+ {
+ if (pubids)
+ *pubids = lappend_oid(*pubids, pubid);
+ found = true;
+ }
}

Can we simplify this multi-level check to something simple by using
some temporary variable?
Suggestions:

for (int i = 0; i < pubrellist->n_members; i++)
{
    List **target_list = pubrel->prexcept ? except_pubids : pubids;

  if (target_list)
     *target_list = lappend_oid(*target_list, pubid);
  if (!pubrel->prexcept)
    found = true;
}

2.
-extern List *GetPublicationRelations(Oid pubid, PublicationPartOpt
pub_partopt);
+extern List *GetIncludedRelationsByPub(Oid pubid,
+    PublicationPartOpt pub_partopt);

I don't really like renaming this function, IMHO the
GetPublicationRelations() means all the published relation, we don't
need to be explicit about *Included* relation.  Then I see we have
another function to fetch the excluded relation i.e.
GetExcludedTablesByPub() so maybe this makes sense considering we have
a requirement for fetching included as well as excluded.

3. Question, what would be the behavior of
pg_get_publication_tables(), if we have created PUBLICATION FOR ALL
TABLES with EXCEPT, I assume it will give all table even in the EXCEPT
list as we have another function to get effective tables i.e.
pg_get_publication_effective_tables(), so my question is are we
planning to add an additional field in pg_get_publication_tables() to
explicitly mention that the table is EXCLUDED?


--
Regards,
Dilip Kumar
Google



pgsql-hackers by date:

Previous
From: Mingli Zhang
Date:
Subject: Re: Recommended TPC-DS tools/setup for PostgreSQL benchmarking?
Next
From: Andreas Karlsson
Date:
Subject: Re: Remove obsolete SAMESIGN macro