Performing database joins
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United States of America Patent
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May 7, 2013
Grant Date -
Apr 12, 2012
app pub date -
Oct 11, 2010
filing date -
Oct 11, 2010
priority date (Note) -
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Abstract
A method of performing a database join includes receiving a query. The query may specify a join of a first table and a second table. The method further includes determining a new predicate based on a mapping between a first column of the first table and a second column of the second table for a plurality of tuples of the join. Further, the method includes modifying the query such that the query comprises the new predicate.
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