Constructing balanced multidimensional range-based bitmap indice

Details Constructing balanced multidimensional range-based bitmap indice Constructing balanced multidimensional range-based bitmap indice

1996-03-20

1998-06-02

Black, Thomas G.

Data processing: database and file management or data structures

Database design

Data structure types

707100, 707101, 707102, 707205, G06F 9355

Patent

active

057616523

ABSTRACT:
A computerized method of building balanced ranges of attribute values for multiple attributes of a database simultaneously without requiring presorting of the database. The balanced ranges are used to construct balanced range-based multidimensional bitmap indexes for processing complex multipredicate queries against the database. A dynamic partition expansion and contraction method can construct balanced ranges for bitmap indexing of tuples having high cardinality attributes and even in the presence of highly skewed data.

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