Dear Pytable Experts-

Would someone provide a trailhead or working example of a condition
(using row iterators I believe), whereby a row's field could be
compared to a prior row's field?  I.E. if a river's average
temperature today is > than the average temp yesterday, fetch all
fields from today.  I would welcome examples of even more complex
queries.

Thanks much.

-- 
Vince Fulco

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