Apache Hive Analytical Functions available since Hive 0.11.0, are a special group of functions that scan the multiple input rows ( a window)to compute each output value. Apache Hive Analytical Functions are usually used with OVER, PARTITION BY, ORDER BY, and the windowing specification. Different from the regular aggregate functions used with the GROUP BY clause that is limited to one result value per group, analytic functions operate on windows where the input rows are ordered and grouped using flexible conditions expressed through an OVER PARTITION clause.Though analytic functions give aggregate results, they do not group the result set. …



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