Re: Report bytes and transactions actually sent downtream

Bertrand Drouvot <bertranddrouvot.pg@gmail.com>

From: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
To: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Cc: shveta malik <shveta.malik@gmail.com>, Ashutosh Sharma <ashu.coek88@gmail.com>, Amit Kapila <amit.kapila16@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2025-10-03T13:47:34Z
Lists: pgsql-hackers
Hi,

On Fri, Oct 03, 2025 at 12:22:05PM +0530, Ashutosh Bapat wrote:
> Here's patchset addressing two issues:

Thanks for the patch update!

> I
> have added a note in documentation for plugin authors, warning them
> that this isn't expected.

What note are you referring to? (I'm failing to see it).

> I don't think it's worth adding complexity
> in code to support such a case unless we see a practical need for the
> same.

Sounds good.


> Issue 2: Once X + 2 is loaded, further statistics are accumulated on
> the top of statistics accumulated by version X. Attached patch fixes
> issue 2 by zero'ing out the stats when the plugin does not report the
> statistics.

+#define REPLSLOT_SET_TO_ZERO(fld) statent->fld = 0

It looks like that the associated "undef" is missing.

Regards,

-- 
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
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