Re: Understanding the output of EXPLAIN ANALYSE - Mailing list pgsql-novice

From Greg Stark
Subject Re: Understanding the output of EXPLAIN ANALYSE
Date
Msg-id 407d949e0907231411u6c392854sa9169db7bd2c1eec@mail.gmail.com
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In response to Understanding the output of EXPLAIN ANALYSE  ("Thurber, Fred" <Fred.Thurber@gdit.com>)
Responses Re: Understanding the output of EXPLAIN ANALYSE  ("Thurber, Fred" <Fred.Thurber@gdit.com>)
List pgsql-novice
On Thu, Jul 23, 2009 at 6:14 PM, Thurber, Fred<Fred.Thurber@gdit.com> wrote:
> "Nested Loop  (cost=78.63..101.14 rows=1 width=256) (actual
> time=0.000..16.000 rows=2818 loops=1)"


Well it was expecting 1 row and got 2,818 so the costs are going to be
pretty wildly wrong. But since you cut out all the details it's pretty
hard to guess what happened.

--
greg
http://mit.edu/~gsstark/resume.pdf

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