Inventor
LEUNG TING Y
US12 patents
⚠️ This page may combine multiple inventors who share the name “LEUNG TING Y”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
11 patentsUS5548755AAug 20, 1996
System for optimizing correlated SQL queries in a relational database using magic decorrelation
IBM153 citations98
US7587383B2Sep 8, 2009
Redundant join elimination and sub-query elimination using subsumption
IBM66 citations96
US5590324ADec 31, 1996
Optimization of SQL queries using universal quantifiers, set intersection, and max/min aggregation in the presence of nullable columns
IBM113 citations96
US5548754AAug 20, 1996
Optimization of SQL queries using early-out join transformations
IBM61 citations96
US5548758AAug 20, 1996
Optimization of SQL queries using early-out join transformations of column-bound relational tables
IBM91 citations96
US7007006B2Feb 28, 2006
Method for recommending indexes and materialized views for a database workload
IBM90 citations94
US5615361AMar 25, 1997
Exploitation of uniqueness properties using a 1-tuple condition for the optimization of SQL queries
IBM68 citations93
US6965894B2Nov 15, 2005
Efficient implementation of an index structure for multi-column bi-directional searches
IBM26 citations87
US10157204B2Dec 18, 2018
Generating statistical views in a database system
IBM2 citations72
US10019480B2Jul 10, 2018
Query tuning in the cloud
IBM0 citations44
US9996582B2Jun 12, 2018
Query tuning in the cloud
IBM1 citations44