SPARQL (SPARQL Protocol and RDF Query Language) query optimization method for column family overlay storage

The invention discloses a SPARQL (SPARQL Protocol and RDF Query Language) query optimization method for column family overlay storage. When query is star query, a connection first execution strategy is used, and query optimization is the union of column family projection; when the query is chain que...

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Bibliographische Detailangaben
Hauptverfasser: LIU GUANGCAO, LIN LIMING, QIU HEQING, ZHAO GUANG, CHEN SHENG, ZHANG SHIDONG, WANG YAN
Format: Patent
Sprache:chi ; eng
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