Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shrikanth Shankar0
Ananth Raghavan0
Date of Patent
October 12, 2010
Patent Application Number
11124454
Date Filed
May 4, 2005
Patent Citations Received
0
Patent Primary Examiner
Patent abstract
Techniques are described for performing partition pruning in situations where previous database servers could not. Specifically, techniques are provided for (1) performing partition pruning based on predicates that involve non-prefix subsets of composite partitioning keys, (2) performing partition pruning when a global index access path is used to execute a query, and (3) performing partition pruning when predicates on partitioning columns are OR-ed together. More generally, techniques are described for partition pruning based on a non-contiguous set of not-pruned partitions.
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