From: | "Edwin Quijada" <listas_quijada(at)hotmail(dot)com> |
---|---|
To: | carohurtado(at)yahoo(dot)com |
Cc: | pgsql-es-ayuda(at)postgresql(dot)org |
Subject: | RE: postgresql |
Date: | 2005-04-25 19:17:25 |
Message-ID: | BAY1-F19F5559C71C9CADE82BE5BE3200@phx.gbl |
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Thread: | |
Lists: | pgsql-es-ayuda |
EXPLAIN select * from tabla;
EXPLAIN ANALYZE select * from tabla;
Recuerda postear en espanol. :)
*-------------------------------------------------------*
*-Edwin Quijada
*-Developer DataBase
*-JQ Microsistemas
*-809-747-2787
* " Si deseas lograr cosas excepcionales debes de hacer cosas fuera de lo
comun"
*-------------------------------------------------------*
>From: Carolina Hurtado Londoño <carohurtado(at)yahoo(dot)com>
>To: pgsql-es-ayuda-owner(at)postgresql(dot)org,
>pgsql-bugs(at)postgreslq(dot)org,pgsql-es-ayuda(at)postgresql(dot)org
>Subject: [pgsql-es-ayuda] postgresql
>Date: Mon, 25 Apr 2005 18:42:29 +0200 (CEST)
>
>Hi:
>I'm working on a project where I need to know how Postgresql determines
>which "Access Plan" to use when executing specific Select-SQL sentences;
>whether Postgresql decides to use a specific Index or not and how
>Postgresql determines if the index has to be used; and how Postgresql
>parsers a Select-SQL sentence depending on the order of the WHERE clauses.
>Where can I find specific information about this?.
>Thank you very much for your help.
>
>Carolina Hurtado Londoño
>
>
>---------------------------------
>
_________________________________________________________________
MSN Amor: busca tu ½ naranja http://latam.msn.com/amor/
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