Re: [PERFORM] Hash Anti Join performance degradation

On Wed, Jun 01, 2011 at 04:58:36PM -0400, Robert Haas wrote:
> On Wed, Jun 1, 2011 at 4:47 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> > Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> >> I guess the real issue here is that m1.id < m2.id has to be evaluated
> >> as a filter condition rather than a join qual.
> >
> > Well, if you can invent an optimized join technique that works for
> > inequalities, go for it ... but I think you should get at least a
> > PhD thesis out of that.
>
> Sounds good, except that so far NOT getting a PhD seems like a much
> better financial prospect. :-)

Yeah, last time I heard of some Uni being so impressed by independent
work that they just sort of handed out a Ph.D. it involved a Swiss
patent clerk ...

Ross
--
Ross Reedstrom, Ph.D. reedstrm(at)rice(dot)edu
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