Re: hashagg slowdown due to spill changes

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От Peter Geoghegan
Тема Re: hashagg slowdown due to spill changes
Дата
Msg-id CAH2-WzkOT+k++5iOhYUoNZN5F6n=EHMO6y7Fn0xdS6q+gKxKxQ@mail.gmail.com
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Ответ на Re: hashagg slowdown due to spill changes  (Andres Freund <andres@anarazel.de>)
Ответы Re: hashagg slowdown due to spill changes  (Peter Geoghegan <pg@bowt.ie>)
Список pgsql-hackers
On Fri, Jul 24, 2020 at 4:51 PM Andres Freund <andres@anarazel.de> wrote:
> This is still not resolved. We're right now slower than 12. It's
> effectively not possible to do performance comparisons right now. This
> was nearly two months ago.

I have added a new open item for this separate
LookupTupleHashEntryHash()/lookup_hash_entry() pipeline-stall issue.

(For the record I mistakenly believed that commit 23023022 resolved
all of the concerns raised on this thread, which is why I closed out
the open item associated with this thread. Evidently work remains to
fix a remaining regression that affects simple in-memory hash
aggregation, though.)

-- 
Peter Geoghegan



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