| From: | Achilleus Mantzios <achill(at)matrix(dot)gatewaynet(dot)com> |
|---|---|
| To: | Th Templ <templ_th(at)hotmail(dot)com> |
| Cc: | pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: Performance of request of type WHERE ... IN ( ... ) |
| Date: | 2003-01-15 15:00:20 |
| Message-ID: | Pine.LNX.4.44.0301151259100.1876-100000@matrix.gatewaynet.com |
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| Thread: | |
| Lists: | pgsql-sql |
On Wed, 15 Jan 2003, Th Templ wrote:
> Hello,
>
> I have performance problem of an request of type ... WHERE ... IN ( ... ).
> How to improve performance of this type of request when a group of id in the
> 'in' is important.
Try WHERE ... EXISTS (...).
> Thanks for your answers.
> Templth
>
>
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==================================================================
Achilleus Mantzios
S/W Engineer
IT dept
Dynacom Tankers Mngmt
Nikis 4, Glyfada
Athens 16610
Greece
tel: +30-10-8981112
fax: +30-10-8981877
email: achill(at)matrix(dot)gatewaynet(dot)com
mantzios(at)softlab(dot)ece(dot)ntua(dot)gr
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