Re: Performance Killer 'IN' ?
От | Joshua D. Drake |
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Тема | Re: Performance Killer 'IN' ? |
Дата | |
Msg-id | 442C4EBC.5040808@commandprompt.com обсуждение исходный текст |
Ответ на | Re: Performance Killer 'IN' ? (Kai Hessing <kai.hessing@hobsons.de>) |
Ответы |
Re: Performance Killer 'IN' ?
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Список | pgsql-general |
Kai Hessing wrote: >> and it took about 10 Minutes to execute. So it is nearly a hundred times >> slower. Can this be verified? Is there anything that can be done about >> that? Else I would need to have a few words with our programmers... > > OK... I overstated a little bit. The real numbers are: > > 1.) 21.5 seconds > 2.) 363.7 seconds > > But it is still a significant difference. Can you provide an explain analyze of each query? > > ---------------------------(end of broadcast)--------------------------- > TIP 1: 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 > -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/
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