Res: Cost performace question
От
paulo matadr
Тема
Res: Cost performace question
Дата
Msg-id
326710.81152.qm@web52503.mail.re2.yahoo.com
Ответ на
Re: Cost performace question (Kevin Grittner)
Список
Дерево обсуждения
Cost performace question paulo matadr <saddoness@yahoo.com.br>
Re: Cost performace question "Kevin Grittner" <Kevin.Grittner@wicourts.gov>
Res: Cost performace question paulo matadr <saddoness@yahoo.com.br>
Re: Res: Cost performace question Matthew Wakeling <matthew@flymine.org>
thanks i understand now, i have other dought
Index Scan using xix3_movimento_roteiro_empresa on movimento_roteiro_empresa movimentor0_ (cost=0.00..73386.80 rows=5126 width=451)
what's this mean on red color above?
Index Scan using xix3_movimento_roteiro_empresa on movimento_roteiro_empresa movimentor0_ (cost=0.00..73386.80 rows=5126 width=451)
what's this mean on red color above?
De: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Para: pgsql-performance@postgresql.org; paulo matadr <saddoness@yahoo.com.br>
Enviadas: Sexta-feira, 10 de Julho de 2009 11:51:27
Assunto: Re: [PERFORM] Cost performace question
paulo matadr <saddoness@yahoo.com.br> wrote:
> Im confused about who is the most import (colour red ou blue).
For the benefit of those without an easy way to view email in http,
the first cost number was in red, the second in blue.
The first number is the cost to retrieve the first row, the second
number is the cost to retrieve the full set of rows. Usually I'm
paying more attention to the second number.
-Kevin
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