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From: Anne Rosset <arosset@collab.net>
To: Alvaro Herrera <alvherre@commandprompt.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Richard Huxton <dev@archonet.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Need help with one query
Date: Fri, 20 Mar 2009 13:29:02 -0700
Message-ID: <49C3FC8E.9070004@collab.net> (raw)
In-Reply-To: <20090320191453.GM8313@alvh.no-ip.org>
References: <49C2AC75.5060601@collab.net>
	<49C3600E.20504@archonet.com>
	<49C3CF52.9090602@collab.net>
	<603c8f070903201204s53f2a3cvbf9afc8649b2201a@mail.gmail.com>
	<20090320191453.GM8313@alvh.no-ip.org>

Alvaro Herrera wrote:

>Robert Haas escribió:
>
>  
>
>>Something is wrong here.  How can setting enable_seqscan to off result
>>in a plan with a far lower estimated cost than the original plan?  If
>>the planner thought the non-seq-scan plan is cheaper, it would have
>>picked that one to begin with.
>>    
>>
>
>GEQO?  Anne, what's geqo_threshold set to?
>
>  
>
Hi Alvaro:
It is turned off
geqo | off | Enables genetic query optimization.
Thanks,
Anne



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