A database organization system that separates fields used for record selection into a search table, leaving fields used solely for retrieval in a separate detail table. The system constructs a bit-interleaved key field within the search table, causing records with similar field values to cluster....http://www.google.ca/patents/US5710915?utm_source=gb-gplus-sharePatent US5710915 - Method for accelerating access to a database clustered partitioning
