METHOD AND APPARATUS FOR IMPLEMENTING PARTIAL DECLUSTERING IN A PARALLEL DATABASE SYSTEM

METHOD AND APPARATUS FOR IMPLEMENTING PARTIAL DECLUSTERING IN A PARALLEL DATABASE SYSTEM

The invention provides a method and apparatus for distributing data of a table across a parallel data base system having a plurality of interlinked database nodes. The table is partitioned in accordance with a predetermined partitioning arrangement and data of the table is distributed across a subse...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FECTEAU, GILLES, KOO, FRED, KIRTON, JO-ANNE, BARU, CHAITANYA K, KOLLAR, LUBOR J
Format: Patent
Sprache:eng ; fre
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:The invention provides a method and apparatus for distributing data of a table across a parallel data base system having a plurality of interlinked database nodes. The table is partitioned in accordance with a predetermined partitioning arrangement and data of the table is distributed across a subset of the nodes in accordance with the partitioning arrangement. The partitioning arrangement can comprise horizontal or vertical partitioning. The partitioning arrangement can comprise a partitioning map defining the relationship of partitions of the table to said subset of nodes.