Parallel query optimization strategies for replicated and partitioned tables
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United States of America Patent
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Sep 23, 2003
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app pub date -
Sep 13, 1999
filing date -
Jun 29, 1998
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Abstract
A method, apparatus, and article of manufacture for optimizing database queries. The query is analyzed to determine whether at least a portion of the query can be evaluated using a plurality of parallel operations without data redistribution. If so, then the most efficient query execution plan that uses these parallel operations is constructed and executed.
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