On Wed, Jan 09, 2013 at 06:39:40PM -0800, Dimitre Novatchev scripsit:
Graydon,
I am glad this was useful.
Forgive me for not mentioning keys explicitly -- I can't imagine that
someone wouldn't use keys for this :)
Once one has figured out that the problem is one of relative frequency,
not something to do with determining uniqueness, yeah, keys are pretty
obvious.
_Before_ that happens, well. Rather less obvious!
-- Graydon
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