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For us new Mumpies could you explain what B-trees are and what is a pointer split?
-------Original Message-------
Date: 04/14/05 23:23:45
Subject: Re: [Hardhats-members] BIG NEWS re HealtheVet- St. Petersburg Tim es
Actually there is.
Most MUMPS implementations are multi-way B-trees. Real true B-trees
suffer badly in real-life, nearly every action is a pointer split. The
performance of MUMPS sparse arrays is in the shared buffer pools and broad
pointer structures that get you to any data location in a 1,000,000 element
database in 7 physical disk accesses or less.
Best wishes; Chris
----- Original Message -----
Sent: Thursday, April 14, 2005 7:26 PM
Subject: RE: [Hardhats-members] BIG NEWS re HealtheVet- St. Petersburg Tim
es
> Back to Donald E. Knuth eh? One would think that by now... Guess there
isn't
> much new under the Sun. ..tx/t
>
> > -----Original Message-----
> > Sent: Thursday, April 14, 2005 6:14 PM
> > Subject: Re: [Hardhats-members] BIG NEWS re HealtheVet- St. Petersburg
Tim
> > es
> >
> > Of course, when you really get down to basics, it's all B-trees,
> > whether you're talking about MUMPS or your favorite RDBMS.
> > s-members
>
>
>
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