On Fri, Oct 16, 2009 at 01:28:57PM -0400, Tom Lane wrote:
> David Fetter <da...@fetter.org> writes:
> > I think what the OP was expecting was to have the last value be 3
> > instead of changing.  This is at least a POLA violation.
> 
> [ shrug... ]  It's what the spec requires, as far as anybody here
> can tell.  As Hitoshi-san already noted, we do point out in our docs
> that last_value is not too useful unless you use a nondefault window
> frame selection.   I'm not sure what else we could do.

Perhaps an illustration of the issue and a workaround in the docs?

Cheers,
David.
-- 
David Fetter <da...@fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fet...@gmail.com

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