Re: [HACKERS] [PATCH] Incremental sort

From: Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>
To: Antonin Houska <ah(at)cybertec(dot)at>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [HACKERS] [PATCH] Incremental sort
Date: 2017-11-14 18:42:27
Views: Raw Message | Whole Thread | Download mbox
Lists: pgsql-hackers

On Tue, Nov 14, 2017 at 7:00 PM, Antonin Houska <ah(at)cybertec(dot)at> wrote:

> Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> > Patch rebased to current master is attached. I'm going to improve my
> testing script and post new results.
> I wanted to review this patch but incremental-sort-8.patch fails to apply.
> Can
> you please rebase it again?

Sure, please find rebased patch attached.
Also, I'd like to share partial results of benchmarks with 100M of rows.
It appears that for 100M of rows it takes quite amount of time. Perhaps in
cases when there were degradation on 1M of rows, it becomes somewhat

Alexander Korotkov
Postgres Professional:
The Russian Postgres Company

Attachment Content-Type Size
incremental-sort-9.patch application/octet-stream 118.5 KB
results_100m_partial.csv text/csv 84.2 KB

In response to


Browse pgsql-hackers by date

  From Date Subject
Next Message Simon Riggs 2017-11-14 18:43:36 Re: [HACKERS] Proposal: Local indexes for partitioned table
Previous Message Robert Haas 2017-11-14 18:12:07 Re: [HACKERS] Proposal: Local indexes for partitioned table