Re: First draft of the PG 15 release notes

I wonder if this is worth mentioning:

Raise a WARNING for missing publications.
commit 8f2e2bbf145384784bad07a96d461c6bbd91f597

https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=8f2e2bbf145384784bad07a96d461c6bbd91f597

Regards,
Vignesh


On Thu, May 12, 2022 at 7:52 PM Bruce Momjian <bruce@momjian.us> wrote:
>
> On Thu, May 12, 2022 at 11:12:54AM -0300, Euler Taveira wrote:
> OB> On Thu, May 12, 2022, at 11:03 AM, Bruce Momjian wrote:
> >
> >     I looked at that but thought that everyone would already assume we
> >     skipped replication of empty transactions, and I didn't see much impact
> >     for the user, so I didn't include it.
> >
> > It certainly has an impact on heavy workloads that replicate tables with few
> > modifications. It receives a high traffic of 'begin' and 'commit' messages that
> > the previous Postgres versions have to handle (discard). I would classify it as
> > a performance improvement for logical replication. Don't have a strong opinion
> > if it should be mentioned or not.
>
> Oh, so your point is that a transaction that only has SELECT would
> previously send an empty transaction?  I thought this was only for apps
> that create literal empty transactions, which seem rare.
>
> --
>   Bruce Momjian  <bruce@momjian.us>        https://momjian.us
>   EDB                                      https://enterprisedb.com
>
>   Indecision is a decision.  Inaction is an action.  Mark Batterson
>
>
>