RE: Partial aggregates pushdown

Hi Alexander, hackers.

> From: Alexander Pyhalov 
> Sent: Tuesday, May 28, 2024 2:45 PM
> The fix was to set child_agg->agg_partial to orig_agg->agg_partial in
> convert_combining_aggrefs(), it's already in the patch, as well as the example -
> without this fix
I've just realized that you've added the necessary tests. I forgot to respond, my apologies.

> From: Alexander Pyhalov 
> Sent: Tuesday, May 28, 2024 2:58 PM
> BTW, there's I have an issue with test results in the last version of the patch.
> Attaching regression diffs.
> I have partial sum over c_interval instead of sum(c_interval).
I think the difference stems from the commit[1], which add serialization function
to sum(interval). I will fix it.

Best regards, Yuki Fujii
--
Yuki Fujii
Information Technology R&D Center, Mitsubishi Electric Corporation

[1] https://github.com/postgres/postgres/commit/519fc1bd9e9d7b408903e44f55f83f6db30742b7