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Columnwise Spatial Aggregation

  • US 20130346418A1
  • Filed: 06/25/2012
  • Published: 12/26/2013
  • Est. Priority Date: 06/25/2012
  • Status: Active Grant
First Claim
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1. A method for processing a spatial aggregation query of a database comprising:

  • receiving data specifying a maximum bounded rectangle for point data responsive to the query and specifying one or more grid partitions of the maximum bounded rectangle, at least one of the partitions being partially aggregated;

    computing, for each partition, a number of points responsive to the query in each partition and a center of gravity of the points in each partition; and

    providing, for at least one partition, data characterizing the corresponding computed number of points and center of gravity.

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