experiments in query optimization

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Hi everyone,

I've been trying to reduce both memory usage and runtime for a query. Comments/suggestions gratefully received. Details are at

http://bulldog.duhs.duke.edu/~faheem/snppy/opt.pdf

See particularly Section 1 - Background and Discussion.

If you want a text version, see

http://bulldog.duhs.duke.edu/~faheem/snppy/opt.tex

For background see

http://bulldog.duhs.duke.edu/~faheem/snppy/diag.pdf (text version http://bulldog.duhs.duke.edu/~faheem/snppy/diag.tex) and http://bulldog.duhs.duke.edu/~faheem/snppy/snppy.pdf

Please CC any replies to me at the above email address. Thanks.

                                                     Regards, Faheem.

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