From: | legrand legrand <legrand_legrand(at)hotmail(dot)com> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: WIP: Aggregation push-down |
Date: | 2020-02-26 21:10:46 |
Message-ID: | 1582751446111-0.post@n3.nabble.com |
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Lists: | pgsql-hackers |
Antonin Houska-2 wrote
> Alvaro Herrera <
> alvherre@
> > wrote:
>
>> This stuff seems very useful. How come it sits unreviewed for so long?
>
> I think the review is hard for people who are not interested in the
> planner
> very much. And as for further development, there are a few design
> decisions
> that can hardly be resolved without Tom Lane's comments. Right now I
> recall
> two problems: 1) is the way I currently store RelOptInfo for the grouped
> relations correct?, 2) how should we handle types for which logical
> equality
> does not imply physical (byte-wise) equality?
>
> Fortunately it seems now that I'm not the only one who cares about 2), so
> this
> problem might be resolved soon:
>
> https://www.postgresql.org/message-id/CAH2-Wzn3Ee49Gmxb7V1VJ3-AC8fWn-Fr8pfWQebHe8rYRxt5OQ%40mail.gmail.com
>
> But 1) still remains.
>
> --
> Antonin Houska
> Web: https://www.cybertec-postgresql.com
Hello
would "pgsql: Add equalimage B-Tree support functions."
https://www.postgresql.org/message-id/E1j72NY-0002gi-2B@gemulon.postgresql.org
help for 2) ?
Regards
PAscal
--
Sent from: https://www.postgresql-archive.org/PostgreSQL-hackers-f1928748.html
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