International Business Machines Corporation

Guy Gerson-Golan Guy Gerson-Golan

Paula Kim Ta-Shma

Yosef Moatti

Improved computer data query processing by a) identifying a cut point value (CPV) for a data set, where an attribute value of each data set record is normalized between first and second normal bounds, where the CPV is any value between the normal bounds that is associated with a maximum data skipping performance value (DSP) calculated by applying a DSP function based on the normalized values and the CPV, and where the DSP function relates to a selected data query distribution profile, b) partitioning the data set into multiple partitions, one partition including a data record subset whose corresponding normalized attribute values are greater than the CPV, and another partition including a data record subset whose corresponding normalized attribute values are less than the CPV, and c) storing the partitions on physical data storage media for access by a computer configured to perform data query processing.

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Ramt-Gan, Israel

Guy Gerson-Golan Guy Gerson-Golan