Re: hashagg slowdown due to spill changes - Mailing list pgsql-hackers

From Jeff Davis
Subject Re: hashagg slowdown due to spill changes
Date
Msg-id 8feb70055d46e1dcfa44fb80ec575e4e0f0cd933.camel@j-davis.com
Whole thread Raw
In response to Re: hashagg slowdown due to spill changes  (Andres Freund <andres@anarazel.de>)
Responses Re: hashagg slowdown due to spill changes
List pgsql-hackers
On Thu, 2020-06-11 at 10:45 -0700, Andres Freund wrote:
> Did you run any performance tests?

Yes, I reproduced your ~12% regression from V12, and this patch nearly
eliminated it for me.

Regards,
    Jeff Davis





pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Definitional issue: stddev_pop (and related) for 1 input
Next
From: Alexander Korotkov
Date:
Subject: Re: jsonpath versus NaN