Re: constraint upon view
От | Jonathan Gardner |
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Тема | Re: constraint upon view |
Дата | |
Msg-id | 200406021328.46902.jgardner@jonathangardner.net обсуждение исходный текст |
Ответ на | constraint upon view (Pierre Emmanuel Gros <Pierre-Emmanuel.Gros@limsi.fr>) |
Ответы |
Re: constraint upon view
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Список | pgsql-hackers |
On Monday 31 May 2004 06:38 am, Pierre Emmanuel Gros wrote: > Hi, > I would like to know if i can add constraint and typed column upon a > create view sentence. > something like create view toto (a INTEGER primary key , b VARCHAR) as > select ..... > If it is not possible , what to have to change in the backend sources to > obtain the result ??? > I don't think you want a view in this case. When you select against a view, the view is unrolled into the statement that forms it. Try a look at the results of "EXPLAIN ANALYZE" when you are selecting against a view. -- Jonathan Gardner jgardner@jonathangardner.net
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