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From: Gunnar \"Nick\" Bluth <gunnar.bluth@pro-open.de>
To: Petr Praus <petr@praus.net>
Cc: Marcos Ortiz <mlortiz@uci.cu>
Cc: pgsql-performance@postgresql.org
Cc: klaussfreire@gmail.com
Cc: jeff.janes@gmail.com
Subject: Re: Re: Increasing work_mem and shared_buffers on Postgres 9.2 significantly slows down queries
Date: Tue, 06 Nov 2012 21:17:59 +0100
Message-ID: <50997077.1020500@pro-open.de> (raw)
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	<CACezXZ_UYbzvNEP_V6-bsyzGij-kJdeNz04-o=kbMXmcLMHnqw@mail.gmail.com>
	<5092DE42.5060206@uci.cu>
	<509304DC.1090809@pro-open.de>
	<CACezXZ-p1UK0K4EJH8b+EBuiD5HY0vNaQvxrnMcjwvjf9cb+oQ@mail.gmail.com>
	<5094F280.6010606@pro-open.de>
	<CACezXZ9SV58CbFM3-MpKGm1z-J0Ho1zERMUBuLH6QhC7RJ5T8Q@mail.gmail.com>
	<50954FAF.3060905@pro-open.de>
	<CACezXZ-NBmEd-Ur8TKvi2fhJkLAC=7w4y93ZPPzoFa1rZH+nmg@mail.gmail.com>
	<50962BCB.7020709@pro-open.de>
	<CACezXZ96RGOOR=vzCOA+Zv-froXSMr9QmJQCJRp_9ndtkszbzQ@mail.gmail.com>
	<50996746.5010508@pro-open.de>
	<CACezXZ8Tp90V+ahNbkZPZtiSFDZpWnQ+6WoBxoPMXAKbMn+GEQ@mail.gmail.com>

Am 06.11.2012 21:08, schrieb Petr Praus:
>
> 2MB: http://explain.depesz.com/s/ul1
> 4MB: http://explain.depesz.com/s/IlVu
> 10MB: http://explain.depesz.com/s/afx3
> 12MB: http://explain.depesz.com/s/i0vQ
>
See the change in the plan between 10MB and 12MB, directly at top level? 
That narrows the thing down quite a bit.

Though I wonder why this didn't show in the original plans...

-- 
Gunnar "Nick" Bluth
RHCE/SCLA

Mobil   +49 172 8853339
Email: gunnar.bluth@pro-open.de
__________________________________________________________________________
In 1984 mainstream users were choosing VMS over UNIX.  Ten years later
they are choosing Windows over UNIX.  What part of that message aren't you
getting? - Tom Payne





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