Re: Unlinking Parallel Hash Join inner batch files sooner

From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To: Andrei Lepikhov <a(dot)lepikhov(at)postgrespro(dot)ru>
Cc: Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Jehan-Guillaume de Rorthais <jgdr(at)dalibo(dot)com>, John Naylor <johncnaylorls(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Unlinking Parallel Hash Join inner batch files sooner
Date: 2024-02-22 19:42:56
Message-ID: CA+hUKGJbr9_5MabtPd0nw0wukM6nuCv-9mN3CooYb5abp_0csQ@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Thu, Feb 22, 2024 at 5:37 PM Andrei Lepikhov
<a(dot)lepikhov(at)postgrespro(dot)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).

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Jeff Davis 2024-02-22 19:48:22 Re: LogwrtResult contended spinlock
Previous Message Ranier Vilela 2024-02-22 19:42:37 re: Speeding up COPY TO for uuids and arrays