Re: Unlinking Parallel Hash Join inner batch files sooner - Mailing list pgsql-hackers

From Thomas Munro
Subject Re: Unlinking Parallel Hash Join inner batch files sooner
Date
Msg-id CA+hUKGJbr9_5MabtPd0nw0wukM6nuCv-9mN3CooYb5abp_0csQ@mail.gmail.com
Whole thread Raw
In response to Re: Unlinking Parallel Hash Join inner batch files sooner  (Andrei Lepikhov <a.lepikhov@postgrespro.ru>)
List pgsql-hackers
On Thu, Feb 22, 2024 at 5:37 PM Andrei Lepikhov
<a.lepikhov@postgrespro.ru> wrote:
> On 22/2/2024 06:42, Thomas Munro wrote:
> > extreme skew for one version of the problem, but even with zero/normal
> > skewness and perfect estimation of the number of partitions, if you

Sorry, I meant to write "but even with no duplicates" there (mention
of "normal" was brain fade).



pgsql-hackers by date:

Previous
From: Ranier Vilela
Date:
Subject: re: Speeding up COPY TO for uuids and arrays
Next
From: Jeff Davis
Date:
Subject: Re: LogwrtResult contended spinlock