[Monetdb-developers] Any efforts on using bitmap indices?

Niels Nes Niels.Nes at cwi.nl
Fri Jul 13 20:46:17 CEST 2007


On Fri, Jul 13, 2007 at 01:37:42PM +0200, Gabriel Welsche wrote:
> Hello,
> 
> does anybody consider supporting bitmap indices?
> 
> An indexing software called FastBit was integrated to MonetDB 
> (http://crd.lbl.gov/~kewu/ps/LBNL-61768.pdf)
> and some benchmarks show that there were serious improvements concerning 
> combined numerical and text queries (offers up to 10 times better 
> performance then MonetDB without FastBit).

We plan to look at the code from the FastBit group. They are working
hard to make their code available in open source. Than the MonetDB
team will have a look at their efforts integrating that into MonetDB/SQL.
We hopefully get a maintainable patch for MonetDB out of this.

Niels
> 
> Gabriel
> 
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-- 

Niels Nes, Centre for Mathematics and Computer Science (CWI)
Kruislaan 413, 1098 SJ Amsterdam, The Netherlands
room C0.02,  phone ++31 20 592-4098, fax ++31 20 592-4312
url: http://www.cwi.nl/~niels   e-mail: Niels.Nes at cwi.nl




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