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help / color / mirror / Atom feedFrom: vignesh C <[email protected]>
To: [email protected] <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Alexander Pyhalov <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: Stephen Frost <[email protected]>
Cc: Finnerty, Jim <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Tomas Vondra <[email protected]>
Cc: Julien Rouhaud <[email protected]>
Cc: Daniel Gustafsson <[email protected]>
Subject: Re: [CAUTION!! freemail] Re: Partial aggregates pushdown
Date: Sat, 27 Jan 2024 07:27:34 +0530
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On Thu, 7 Dec 2023 at 05:41, [email protected]
<[email protected]> wrote:
>
> Hi Mr.Haas.
>
> > -----Original Message-----
> > From: Robert Haas <[email protected]>
> > Sent: Wednesday, December 6, 2023 10:25 PM
> > On Wed, Dec 6, 2023 at 3:41 AM [email protected]
> > <[email protected]> wrote:
> > > Are you concerned about the hassle and potential human errors of
> > > manually adding new partial aggregation functions, rather than the catalog becoming bloated?
> >
> > I'm concerned about both.
> Understood. Thank you for your response.
>
> > > The process of creating partial aggregation functions from aggregation
> > > functions can be automated, so I believe this issue can be resolved.
> > > However, automating it may increase the size of the patch even more, so overall, approach#2 might be better.
> > > To implement approach #2, it would be necessary to investigate how much additional code is required.
> >
> > Yes. Unfortunately I fear that there is quite a lot of work left to do here in order to produce a committable feature. To me it
> > seems necessary to conduct an investigation of approach #2. If the result of that investigation is that nothing major
> > stands in the way of approach #2, then I think we should adopt it, which is more work. In addition, the problems around
> > transmitting serialized bytea blobs between machines that can't be assumed to fully trust each other will need to be
> > addressed in some way, which seems like it will require a good deal of design work, forming some kind of consensus, and
> > then implementation work to follow. In addition to that there may be some small problems that need to be solved at a
> > detail level, such as the HAVING issue. I think the last category won't be too hard to sort out, but that still leaves two really
> > major areas to address.
> Yes, I agree with you. It is clear that further investigation and discussion are still needed.
> I would be grateful if we can resolve this issue gradually. I would also like to continue the discussion if possible in the future.
Thanks for all the efforts on this patch. I have changed the status of
the commitfest entry to "Returned with Feedback" as there is still
some work to get this patch out. Feel free to continue the discussion
and add a new entry when the patch is in a reviewable shape.
Regards,
Vignesh
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Subject: Re: [CAUTION!! freemail] Re: Partial aggregates pushdown
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