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Validating multiple execution plans for database queries

  • US 20040167891A1
  • Filed: 02/24/2004
  • Published: 08/26/2004
  • Est. Priority Date: 03/31/2000
  • Status: Active Grant
First Claim
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1. A method for validation by a programmed digital computer, comprising:

  • organizing a plurality of alternative execution plans for carrying out a database query into a plurality of groups each having at least one operator associated with at least one operator in another of the groups;

    determining rank data for each operator related to a number of alternative operators in the other of the groups;

    determining rank data for each group.

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