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Hybrid Columnar Compression

  • Kerry Osborne
  • Randy Johnson
  • Tanel Pöder

Abstract

Hybrid Columnar Compression (HCC) is probably one of the least understood of the features that are unique to Exadata. The feature was originally rolled out in a beta version of 11gR2 and was enabled on both Exadata and non-Exadata platforms. The production release of 11gR2 restricted the feature to Exadata platforms only. Ostensibly this decision was made because the additional processing power available on the Exadata storage servers. Because the feature is restricted to Exadata, the recent documentation refers to it as Exadata Hybrid Columnar Compression (EHCC).

Keywords

Compression Ratio Load Time Original Block Slave Process Call Detail Record 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kerry Osborne, Randy Johnson, Tanel Pöder 2011

Authors and Affiliations

  • Kerry Osborne
  • Randy Johnson
  • Tanel Pöder

There are no affiliations available

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