From: Andrew Dunstan <andrew@dunslane.net>
To: Claudio Freire <klaussfreire@gmail.com>
Cc: AI Rumman <rummandba@gmail.com>
Cc: postgres performance list <pgsql-performance@postgresql.org>
Subject: Re: Why does the number of rows are different in actual and estimated.
Date: Thu, 13 Dec 2012 18:09:42 -0500
Message-ID: <50CA6036.6000107@dunslane.net> (raw)
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On 12/13/2012 05:42 PM, Claudio Freire wrote:
> And it looks like it all may be starting to go south here:
>> -> Hash Join (cost=9337.97..18115.71 rows=34489 width=244) (actual time=418.054..1156.453 rows=205420 loops=1)
>> Hash Cond: (customerdetails.customerid = entity.id)
Well, it looks like it's choosing a join order that's quite a bit
different from the way the query is expressed, so the OP might need to
play around with forcing the join order some.
cheers
andrew
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To: pgsql-performance@postgresql.org
Cc: andrew@dunslane.net, klaussfreire@gmail.com, rummandba@gmail.com
Subject: Re: Why does the number of rows are different in actual and estimated.
In-Reply-To: <50CA6036.6000107@dunslane.net>
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