Re: More speed counting rows
От
David Wilson
Тема
Re: More speed counting rows
Дата
Msg-id
e7f9235d0907270825h523c302ch4115f4246a4af355@mail.gmail.com
Ответ на
More speed counting rows (Developer)
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Дерево обсуждения
More speed counting rows Developer <dev002@pas-world.com>
Re: More speed counting rows Chris Ernst <cernst@esoft.com>
Re: More speed counting rows Developer <dev002@pas-world.com>
Re: More speed counting rows Scott Marlowe <scott.marlowe@gmail.com>
Re: More speed counting rows David Wilson <david.t.wilson@gmail.com>
On Mon, Jul 27, 2009 at 5:06 AM, Developer wrote: > Hello, > > I am trying to optimize the count of files when I am using filters > (select by some row/s parameter/s) > My question is: > Any method for indirect count like ordered indexes + quadratic count? > Any module? > Any suggestion? If all you need is a good-enough estimate, you can try reporting the tuples count out of the stats tables. It'll only be as up-to-date as autovac makes it, though. I do this in one app to give me ballpark figures for some constantly-growing tables. -- - David T. Wilson david.t.wilson@gmail.com
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