Postgres Pro
Downloads
Home   >   mailing lists

Re: A potential memory leak on Merge Join when Sort node is not below Materialize node - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: A potential memory leak on Merge Join when Sort node is not below Materialize node
Date
Msg-id CAH2-Wzmc3Fy8N6_noPL7BpKvOuKAJgnNFc-7CbdxjcjgC_bjEA@mail.gmail.com
Whole thread Raw
In response to Re: A potential memory leak on Merge Join when Sort node is not below Materialize node  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Tree view 
On Thu, Sep 29, 2022 at 7:10 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> TBH, I think this is completely ridiculous over-optimization.
> There's exactly zero evidence that a second copy of the function
> would improve performance, or do anything but contribute to code
> bloat (which does have a distributed performance cost).

I thought that that was unjustified myself.

-- 
Peter Geoghegan

pgsql-hackers by date:

Previous
From: Robert Haas
Date:
Subject: Re: making relfilenodes 56 bits
Next
From: Matthias van de Meent
Date:
Subject: Re: Adding CommandID to heap xlog records