Re: pg_depend
От
Tom Lane
Тема
Re: pg_depend
Дата
Msg-id
5447.995474268@sss.pgh.pa.us
Ответ на
Re: pg_depend (Philip Warner)
Список
Дерево обсуждения
Re: pg_depend Hiroshi Inoue <Inoue@tpf.co.jp>
Re: pg_depend "Ross J. Reedstrom" <reedstrm@rice.edu>
Re: pg_depend Bill Studenmund <wrstuden@zembu.com>
Philip Warner writes: > At 11:38 18/07/01 -0400, Tom Lane wrote: >> I'd just make the dependency be from view_a to a and keep things >> simple. What's so wrong with recompiling the view for *every* change >> of the underlying table? > Not a problem for views, but when you get to constraints on large tables, > re-evaluating all the constraints unnecessarily could be a nightmare, and > especially frustrating when you just dropped an irrelevant attr. Huh? You seem to be thinking that we'd need to re-check the constraint at each row of the table, but I don't see why we'd need to. I was just envisioning re-parsing the constraint source text. regards, tom lane
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