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Query plan selection control using run-time association mechanism

  • US 20060224563A1
  • Filed: 04/05/2005
  • Published: 10/05/2006
  • Est. Priority Date: 04/05/2005
  • Status: Active Grant
First Claim
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1. A query plan execution system comprising:

  • a plan guide metadata store that stores information associated with one or more plan guides, a plan guide stores information that can influence optimization of a query; and

    , an execution environment that determines whether a plan guide exists for a particular entity, and, if a plan guide exists, employs the plan guide when optimizing the query.

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