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Re: The use of cpu_index_tuple_cost by the query planner - Mailing list pgsql-novice

From Simon Riggs
Subject Re: The use of cpu_index_tuple_cost by the query planner
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Msg-id CA+U5nMLBeb8JUUyo7pxd5rmD27JvcFfQTO8uGb8ecW1U-P=vLQ@mail.gmail.com
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In response to The use of cpu_index_tuple_cost by the query planner  (Antonio Carlos Salzvedel Furtado Junior <acsfj08@inf.ufpr.br>)
Responses Re: The use of cpu_index_tuple_cost by the query planner
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On 27 June 2012 21:28, Antonio Carlos Salzvedel Furtado Junior
<acsfj08@inf.ufpr.br> wrote:

> I'm trying to understand the use of PostgreSQL tuning parameters by the
> query planner's cost estimator. I'm trying to use simple queries to
> understand how these parameters would affect the estimated cost. However, I
> haven't still been able to see the cpu_index_tuple_cost.

Your best hope is to read the source code. Things will become much clearer.

--
 Simon Riggs                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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