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----- Original Message ----- From: "Rich Salz" <rsalz@d...> > > Naively I would think that if you have N attributes you > > have to perform N*(N-1)/2 comparisons to detect duplicates > > (not good for large N as this grows quadratically). > > Does it matter? Premature optimization is the root of all evil... -- Hoare. Maybe not, but that was the topic. Karl
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