Re: Performance of request of type WHERE ... IN ( ... )
От | Achilleus Mantzios |
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Тема | Re: Performance of request of type WHERE ... IN ( ... ) |
Дата | |
Msg-id | Pine.LNX.4.44.0301151259100.1876-100000@matrix.gatewaynet.com обсуждение исходный текст |
Ответ на | Performance of request of type WHERE ... IN ( ... ) ("Th Templ" <templ_th@hotmail.com>) |
Ответы |
Re: Performance of request of type WHERE ... IN ( ... )
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Список | 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 > > > _________________________________________________________________ > Add photos to your e-mail with MSN 8. Get 2 months FREE*. > http://join.msn.com/?page=features/featuredemail > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly > ================================================================== 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@matrix.gatewaynet.com mantzios@softlab.ece.ntua.gr
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