Re: Table Relationships
От | Josh Berkus |
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Тема | Re: Table Relationships |
Дата | |
Msg-id | 200305301003.19829.josh@agliodbs.com обсуждение исходный текст |
Ответ на | Re: Table Relationships (Andrew Sullivan <andrew@libertyrms.info>) |
Ответы |
Re: Table Relationships
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Список | pgsql-performance |
Andrew, > Are you sure you want to say it that strongly? After all, if you > have a data set which needs always to be returned in the same static > format, why not just denormalise it? It's sure faster that way in > every system I've ever encountered. > > It's only when you actually have relations to cope with that it > ceases to be an advantage. So, as usual, it depends on what you're > trying to do. Yeah, I suppose so ... if all they're doing is reporting on a static set of data which is not transactional ... sure. If it's a disposable, limited-time-use application. However, I have yet to see in my professional experience any application that was really this way and stayed this way once it was in use ... relations have a way of creeping in, and planning for them is less messy than refactoring. -- Josh Berkus Aglio Database Solutions San Francisco
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