Inventor
EGAN RANDY LYNN
US10 patents
Patents
10 patentsUS5655080AAug 5, 1997
Distributed hash group-by cooperative processing
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US6996556B2Feb 7, 2006
Metadata manager for database query optimizer
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US6931395B2Aug 16, 2005
Method and apparatus for optimizing queries in a logically partitioned computer system
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US6405187B1Jun 11, 2002
Utilizing encoded vector indexes for statistics in database processing
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US6285994B1Sep 4, 2001
Method and system for efficiently searching an encoded vector index
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US6134546AOct 17, 2000
Method and computer program product for implementing subquery join
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US6260037B1Jul 10, 2001
Method and computer program product for implementing skip key processing for database grouping queries involving aggregate operations by using one or more indices
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US7346612B2Mar 18, 2008
Method and apparatus for optimizing queries in a logically partitioned computer system
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Method and apparatus for optimizing queries in a logically partitioned computer system
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US7783661B2Aug 24, 2010
Method and apparatus for optimizing queries in a logically partitioned computer system
IBM0 citations51