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Graphical Representation of Query Optimizer Search Space In A Database Management System

  • US 20100161589A1
  • Filed: 12/19/2008
  • Published: 06/24/2010
  • Est. Priority Date: 12/19/2008
  • Status: Active Grant
First Claim
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1. A method for generating a graphical representation of a query optimization process, the method comprising:

  • parsing a search space log, the log comprising;

    an order in which one or more evaluated access plans were evaluated,a property for an object of one of the one or more evaluated access plans, anda best access plan selected from the one or more evaluated access plans;

    presenting the one or more evaluated access plans on an axis of a timeline, the timeline corresponding to the order;

    identifying the best access plan on the timeline; and

    outputting a graphical representation of the timeline.

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