Multi-level database compression

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United States of America Patent

PATENT NO 8838551
SERIAL NO

13278330

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Abstract

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Embodiments of the invention relate to a multi-level database compression technique to compress table data objects stored in pages. A compact dictionary structure is encoded that represents frequent values of data at any level of granularity. More than one level of compression is provided, wherein input to a finer level of granularity is an output of a coarser level of granularity. Based upon the encoded dictionary structure, a compression technique is applied to a stored page to compress each row on the page. Similarly, a de-compression technique may be applied to decompress the compressed data, utilizing the same dictionary structures at each level of granularity.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fanghaenel, Thomas San Jose, US 39 289
Jain, Uttam San Jose, US 5 111
Li, Quanzhong San Jose, US 5 177
Lohman, Guy M San Jose, US 62 1143
Sidle, Richard S Mountain View, US 62 791
Stanoi, Ioana R San Jose, US 5 123
Van, der Linden Robbert Scotts Valley, US 10 182

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