Re: query plan estimate - Mailing list pgsql-performance

From Tom Lane
Subject Re: query plan estimate
Date
Msg-id 24671.1364777579@sss.pgh.pa.us
Whole thread Raw
In response to query plan estimate  (pg noob <pgnube@gmail.com>)
List pgsql-performance
pg noob <pgnube@gmail.com> writes:
> I'm looking at this query plan, an excerpt of which is shown here, and I am
> just wondering how the estimated cost for the Nested Loop is calculated?

http://www.postgresql.org/docs/9.2/static/using-explain.html

There's a nestloop example about a third of the way down the page ...

            regards, tom lane


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