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From: Carlo Stonebanks <stonec.register@sympatico.ca>
To: pgsql-performance@postgresql.org
Subject: Acceptable level of over-estimation?
Date: Mon, 24 Sep 2007 15:37:41 -0400
Message-ID: <fd93l6$a7l$1@news.hub.org> (raw)

Is there a rule of thumb about when the planner's row estimates are too 
high? In particular, when should I be concerned that planner's estimated 
number of rows estimated for a nested loop is off? By a factor of 10? 100? 
1000?

Carlo 




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