| From: | "Jaime Casanova" <systemguards(at)gmail(dot)com> |
|---|---|
| To: | "Jose Maria Mencia Fernandez" <jmencia(at)alimarket(dot)es> |
| Cc: | "Martin Marques" <martin(at)bugs(dot)unl(dot)edu(dot)ar>, PostgreEs <pgsql-es-ayuda(at)postgresql(dot)org> |
| Subject: | Re: Ayuda con explain |
| Date: | 2007-05-10 05:28:38 |
| Message-ID: | c2d9e70e0705092228o675b6ec3n72cfce9eeee93cb9@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-es-ayuda |
On 5/9/07, Jose Maria Mencia Fernandez <jmencia(at)alimarket(dot)es> wrote:
> Ok, ejecuto con explain analyze ...
>
> y el resultado es:
>
> Hash Join (cost=85.60..120.13 rows=125 width=246) (actual
> time=9.298..19.990 rows=642 loops=1)
Por que espera encontrar solo 125 filas mientras en realidad recupera
642? es este un problema de correlacion?
--
Atentamente,
Jaime Casanova
"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs and the universe trying
to produce bigger and better idiots.
So far, the universe is winning."
Richard Cook
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