METHODS AND A SYSTEM FOR HYBRID LARGE JOIN QUERY OPTIMIZATION
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United States of America Patent
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Issued Date -
Jun 23, 2016
app pub date -
Dec 23, 2014
filing date -
Dec 23, 2014
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Sets of joins against relations in a query are identified. An optimal order for processing the joins is determined. The optimal order is then processed by an enhanced genetic algorithm to generate a second optimal order for processing the joins. The second optimal order is at least as good as the optimal order. The second optimal order is used when developing a query plan for processing the query in a Database Management System (DBMS).
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