Re: Possible mistake in 'Using EXPLAIN' section

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От Guillaume Lelarge
Тема Re: Possible mistake in 'Using EXPLAIN' section
Дата
Msg-id 470CC1E7.1070202@lelarge.info
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Ответ на Possible mistake in 'Using EXPLAIN' section  ("James Shaw" <js102@zepler.net>)
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James Shaw a écrit :
> The example given has "Seq Scan on tenk1 (cost=0.00..458.00" in the
> example, but then says, "you will find out that |tenk1| has 358 disk
> pages" and "the cost is estimated at 358 page reads".  Shouldn't this be
> 458 disk page reads?
>
> I couldn't see this already discussed on this list.  Is there a URL that
> has the latest docs compiled from CVS?
>

http://momjian.us/main/writings/pgsql/sgml/

(built every five minutes)

Regards.


--
Guillaume.
 http://www.postgresqlfr.org
 http://dalibo.com

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