Re: How to determine cause of performance problem?
От | Joost Kraaijeveld |
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Тема | Re: How to determine cause of performance problem? |
Дата | |
Msg-id | 1127483365.3524.36.camel@Panoramix обсуждение исходный текст |
Ответ на | Re: How to determine cause of performance problem? (Michael Stone <mstone+postgres@mathom.us>) |
Ответы |
Re: How to determine cause of performance problem?
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Список | pgsql-performance |
On Fri, 2005-09-23 at 07:05 -0400, Michael Stone wrote: > On Fri, Sep 23, 2005 at 12:21:15PM +0200, Joost Kraaijeveld wrote: > >On Fri, 2005-09-23 at 05:55 -0400, Michael Stone wrote: > I didn't say it was, did I? No, you did not. But only last week someon'es head was (luckely for him only virtually) almost chopped off for suggesting the usage of GUIDs ;-) > Ok, that's great, but you didn't respond to the suggestion of using COPY > INTO instead of INSERT. Part of the code I left out are some data conversions (e.g. from path-to-file to blob, from text to date (not castable because of the homebrew original format)). I don't believe that I can do these in a SQL statement, can I (my knowledge of SQL as a langage is not that good)? . However I will investigate if I can do the conversion in two steps and check if it is faster. But still, I wonder if ~100 inserts/second is a reasonable performance for my software/hardware combination. -- Groeten, Joost Kraaijeveld Askesis B.V. Molukkenstraat 14 6524NB Nijmegen tel: 024-3888063 / 06-51855277 fax: 024-3608416 e-mail: J.Kraaijeveld@Askesis.nl web: www.askesis.nl
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