Parallelized execution of window operator

A window operator can be processed according to a variety of techniques that introduce parallelism. Window function sub-results can be calculated separately on different nodes. Overall superior performance can result. Skewness in input data can be accounted for by controlling a degree of parallelism...

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Bibliographische Detailangaben
Hauptverfasser: Yoon, Yongsik, Lee, Boyung, Wu, Di
Format: Patent
Sprache:eng
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Zusammenfassung:A window operator can be processed according to a variety of techniques that introduce parallelism. Window function sub-results can be calculated separately on different nodes. Overall superior performance can result. Skewness in input data can be accounted for by controlling a degree of parallelism at nodes.