System and method for executing queries

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United States of America Patent

PATENT NO 8775414
APP PUB NO 20120197869A1
SERIAL NO

13447737

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Abstract

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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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Patent Owner(s)

  • HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Birdsall, David W Santa Clara, US 10 301
Graefe, Goetz Madison, US 89 2004
Jow, Yung-Li L Santa Clara, US 3 11

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