Inventor
LOHMAN GUY MARING
US26 patents
⚠️ This page may combine multiple inventors who share the name “LOHMAN GUY MARING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
25 patentsUS6112198AAug 29, 2000
Optimization of data repartitioning during parallel query optimization
IBM335 citations99
US6092062AJul 18, 2000
Relational database query optimization to perform query evaluation plan, pruning based on the partition properties
IBM334 citations98
US6356889B1Mar 12, 2002
Method for determining optimal database materializations using a query optimizer
IBM147 citations97
US6345267B1Feb 5, 2002
Method and system for look ahead query evaluation planning based on interesting partition properties
IBM94 citations97
US5960428ASep 28, 1999
Star/join query optimization
IBM119 citations97
US7958113B2Jun 7, 2011
Automatically and adaptively determining execution plans for queries with parameter markers
IBM62 citations96
US6725212B2Apr 20, 2004
Platform-independent method and system for graphically presenting the evaluation of a query in a database management system
IBM129 citations96
US6738755B1May 18, 2004
Query optimization method for incrementally estimating the cardinality of a derived relation when statistically correlated predicates are applied
IBM82 citations95
US6763359B2Jul 13, 2004
Learning from empirical results in query optimization
IBM100 citations93
US8001109B2Aug 16, 2011
System and method for automating data partitioning in a parallel database
IBM20 citations92
US7562090B2Jul 14, 2009
System and method for automating data partitioning in a parallel database
IBM21 citations92
US7356526B2Apr 8, 2008
Estimating the compilation time of a query optimizer
IBM27 citations92
US6732110B2May 4, 2004
Estimation of column cardinality in a partitioned relational database
IBM39 citations92
US6665663B2Dec 16, 2003
Outerjoin and antijoin reordering using extended eligibility lists
IBM27 citations92
US7774336B2Aug 10, 2010
Adaptively reordering joins during query execution
IBM35 citations91
US7716215B2May 11, 2010
System, method, and computer program product for progressive query processing
IBM32 citations91
US7447681B2Nov 4, 2008
Method, system and program for selection of database characteristics
IBM32 citations91
US7383246B2Jun 3, 2008
System, method, and computer program product for progressive query processing
IBM37 citations91
US7636735B2Dec 22, 2009
Method for estimating the cost of query processing
IBM17 citations84
US7076477B2Jul 11, 2006
Fast and robust optimization of complex database queries
IBM13 citations84
US7925646B2Apr 12, 2011
Estimating the compilation time of a query optimizer
IBM7 citations83
US7111025B2Sep 19, 2006
Information retrieval system and method using index ANDing for improving performance
IBM17 citations83
US7840946B2Nov 23, 2010
System and method for matching a plurality of ordered sequences with applications to call stack analysis to identify known software problems
IBM17 citations82
US7490110B2Feb 10, 2009
Predictable query execution through early materialization
IBM16 citations82
US6993516B2Jan 31, 2006
Efficient sampling of a relational database
IBM16 citations81