RevisionAggregateQBox.cc

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1.2 15:27:22    Added include for cmath.

2004/11/11 anurag      RevisionAggregateQBox is the Aggregate box that process revision tuples.
                       ****ONLY order-by FIELD and window-size-by VALUES is supported right now.****
                       FUTURE TO OD
                       order-by TUPLENUM and window-size-by TUPLES
                       All Aggregate Functions will need a remove() method to process revisions correctly.
                       Later RevisionAggregate and RevisionFilter should be copied over to Aggregate and Filter boxes respectively.

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