From: | Richard Broersma Jr <rabroersma(at)yahoo(dot)com> |
---|---|
To: | Bert <clemens(dot)bertschler(at)gmail(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: Performance |
Date: | 2006-04-23 00:53:52 |
Message-ID: | 20060423005352.56575.qmail@web31801.mail.mud.yahoo.com |
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Thread: | |
Lists: | pgsql-general |
I expect that you will need to post and explain analyze results of this query so that members of
the list can give you better feedback.
--- Bert <clemens(dot)bertschler(at)gmail(dot)com> wrote:
> Hi List
> I have maybe an easy question but i do not find an answer, i have this
> SQL query:
>
> SELECT geom,group,production_facs FROM south_america
> WHERE municipio = ''
> OR municipio = 'ACRE'
> OR municipio = 'ADJUNTAS'
> OR municipio = 'AGUADA'
>
> The performance of this query is quite worse as longer it gets, its
> possible that this query gets over 20 to 30 OR comparisons, but then
> the performance is really worse, is it possible to speed it up?
> Thanks
> Clemens
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: Don't 'kill -9' the postmaster
>
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