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Date: Fri, 20 Jul 2012 22:27:31 +0100
From: Ioannis Anagnostopoulos <ioannis@anatec.com>
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To: Claudio Freire <klaussfreire@gmail.com>
CC: pgsql-performance@postgresql.org
Subject: Re: A very long running query....
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On 20/07/2012 22:23, Claudio Freire wrote:
> On Fri, Jul 20, 2012 at 6:19 PM, Ioannis Anagnostopoulos
> <ioannis@anatec.com> wrote:
>> "        ->  Nested Loop  (cost=0.00..20942.93 rows=53 width=144) (actual
>> time=62.174..17783236.718 rows=387105 loops=1)"
>> "              Join Filter: (feed_all_y2012m07.message_copies.msg_id =
>> feed_all_y2012m07.ship_pos_messages.msg_id)"
>> "              ->  Append  (cost=0.00..19057.93 rows=53 width=33) (actual
>> time=62.124..5486473.545 rows=387524 loops=1)"
> Misestimated row counts... did you try running an analyze, or upping
> statistic targets?
I have run analyse every so often. I think the problem is that as I get 
16K new rows every minutes, the "stats" are always out... Possible?