Re: Avoiding hash join batch explosions with extreme skew and weird stats

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Melanie Plageman <melanieplageman(at)gmail(dot)com>
Cc: Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Avoiding hash join batch explosions with extreme skew and weird stats
Date: 2020-04-30 19:39:49
Message-ID: 20200430193949.GA9513@alvherre.pgsql
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On 2020-Apr-30, Melanie Plageman wrote:

> On Tue, Apr 28, 2020 at 11:50 PM Heikki Linnakangas <hlinnaka(at)iki(dot)fi> wrote:

> > I haven't looked at the patch in detail, but thanks [...]

> Thanks for taking a look, Heikki!

Hmm. We don't have Heikki's message in the archives. In fact, the last
message from Heikki we seem to have in any list is
cca4e4dc-32ac-b9ab-039d-98dcb5650791(at)iki(dot)fi dated February 19 in
pgsql-bugs. I wonder if there's some problem between Heikki and the
lists.

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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