System and method for executing queries
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United States of America Patent
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Aug 23, 2016
Grant Date -
Jul 17, 2014
app pub date -
Mar 17, 2014
filing date -
Oct 22, 2009
priority date (Note) -
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Abstract
There is provided a computer-implemented method of executing a query plan against a database. An exemplary method comprises accessing a first subset of rows of a database table using a direct access method for an index. The query plan may comprise the direct access method. The exemplary method also comprises determining a processing cost of accessing the first subset of rows. The exemplary method further comprises modifying the direct access method for the index in response to determining that the processing cost exceeds a specified threshold. Additionally, the exemplary method comprises accessing a second subset of rows of the database table using the modified direct access method.
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