Re: [HACKERS] Research/Implementation of Nested Loop Join optimization

Joshua D. Drake escribió:
> On Fri, 2008-07-25 at 19:31 -0400, Jonah H. Harris wrote:
> > On Fri, Jul 25, 2008 at 6:10 PM, Gregory Stark <stark@enterprisedb.com> wrote:
> > > "Manoel Henrique" <mhenriquesgbd@gmail.com> writes:
> > >
> > >> Yes, I'm relying on the assumption that backwards scan has the same cost as
> > >> forward scan, why shouldn't it?
> > >
> > > Because hard drives only spin one direction
> >
> > :)
>
> What if you are below the equator?

They spin the same direction here too, thanks :-) (Coriolis does not
affect much in this case)

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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