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From: Robert Haas <robertmhaas@gmail.com>
To: Jasmin Dizdarevic <jasmin.dizdarevic@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Performance of NOT IN and <> with PG 9.0.4
Date: Tue, 24 May 2011 15:49:06 -0400
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On Tue, May 24, 2011 at 3:32 PM, Jasmin Dizdarevic
<jasmin.dizdarevic@gmail.com> wrote:
> enable_material = off

Is there any chance you can reproduce this with a simpler test case
that doesn't involve quite so many joins?

It looks to me like shutting off enable_material is saving you mostly
by accident here.  There's only one materialize node in the whole
plan.

And just incidentally, do you have any of the other enable_* settings
turned off?

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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