Generalized partition pruning in a database system

Details Generalized partition pruning in a database system Generalized partition pruning in a database system

2005-10-04

2008-12-02

Ali, Mohammad (Department: 2169)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000

Reexamination Certificate

active

07461060

ABSTRACT:
Methods for executing a query on data that has been partitioned into a plurality of partitions are provided. The method includes providing partitioned data including one or more columns and the plurality of partitions. The partitioned data includes a limit key value associated with each column for a given partition. The method further includes receiving a query including a predicate on one of the one or more columns of the partitioned data; and utilizing the predicate on the one of the one or more columns in a pruni.ng decision on at least one of the one or more partitions based on the limit key values associated with the plurality of partitions.

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