Re: Index optimization ?

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От
Alvaro Herrera
Тема
Re: Index optimization ?
Дата
Msg-id
20050115213411.GB26259@dcc.uchile.cl
Ответ на
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Дерево обсуждения
Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Tom Lane <tgl@sss.pgh.pa.us>
Re: Index optimization ? "Jim C. Nasby" <decibel@decibel.org>
Re: Index optimization ? Alvaro Herrera <alvherre@dcc.uchile.cl>
Re: Index optimization ? "Jim C. Nasby" <decibel@decibel.org>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Tom Lane <tgl@sss.pgh.pa.us>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Ragnar Hafstað <gnari@simnet.is>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Ragnar Hafstað <gnari@simnet.is>
Re: Index optimization ? Tom Lane <tgl@sss.pgh.pa.us>
Re: Index optimization ? Ragnar Hafstað <gnari@simnet.is>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Tom Lane <tgl@sss.pgh.pa.us>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Tom Lane <tgl@sss.pgh.pa.us>
Re: Index optimization ? "Frank D. Engel, Jr." <fde101@fjrhome.net>
Re: Index optimization ? "Florian G. Pflug" <fgp@phlo.org>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Greg Stark <gsstark@mit.edu>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Greg Stark <gsstark@mit.edu>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? "Florian G. Pflug" <fgp@phlo.org>
Re: Index optimization ? "Jim C. Nasby" <decibel@decibel.org>
Re: Index optimization ? Alvaro Herrera <alvherre@dcc.uchile.cl>
Re: Index optimization ? "Jim C. Nasby" <decibel@decibel.org>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Michael Glaesemann <grzm@myrealbox.com>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Martijn van Oosterhout <kleptog@svana.org>
Re: Index optimization ? Roman Neuhauser <neuhauser@chello.cz>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Michael Fuhr <mike@fuhr.org>
Re: Index optimization ? Bo Lorentsen <bl@netgroup.dk>
Re: Index optimization ? Michael Fuhr <mike@fuhr.org>
On Sat, Jan 15, 2005 at 03:11:22PM -0600, Jim C. Nasby wrote:

> Would it make sense to have a version of currval that will only return
> one value in a statement/transaction? So the first time it's called it
> remembers what currval for that sequence is and always returns the same
> value?

What would nextval() do in that case?  Return the nextval on the first
call, and act like currval() from then until the end of the transaction?

-- 
Alvaro Herrera ()
"Porque francamente, si para saber manejarse a uno mismo hubiera que
rendir examen... �Qui�n es el machito que tendr�a carnet?"  (Mafalda)
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