Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 24, 2011
Patent Application Number
12059350
Date Filed
March 31, 2008
Patent Primary Examiner
Patent abstract
Methods, systems and computer products perform cost estimate to determine an efficient approach to answer a query according to one of several unified query plans. One unified query plan involves querying an unstructured database, referencing a unified index, and probing a structured database based on matches discovered in the unified index. The results of the unstructured database query are used to lookup entries in a unified index associated with the structured database. Then the structured database is probed by querying only the subset of the structured database gleaned from the unstructured database query.
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