Column Domain Dictionary Compression

Column Domain Dictionary Compression

In column domain dictionary compression, column values in one or more columns are tokenized by a single dictionary. The domain of the dictionary is the entire set of columns. A dictionary may not only map a token to a tokenized value, but also to a count (token count) of the number of occurrences of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MCAULIFFE MARK, EDSON KIRK MEREDITH, WANG CHIH-PING, THOMAS DINA, SARKAR SUBHRADYUTI, NEIMAT MARIE-ANNE, HOANG CHI-KIM, LAHIRI TIRTHANKAR
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:In column domain dictionary compression, column values in one or more columns are tokenized by a single dictionary. The domain of the dictionary is the entire set of columns. A dictionary may not only map a token to a tokenized value, but also to a count (token count) of the number of occurrences of the token and corresponding tokenized value in the dictionary's domain. Such information may be used to compute queries on the base table.