Method and apparatus for implementing partial declustering in a parallel database system

Method and apparatus for implementing partial declustering in a parallel database system

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 accor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIRTON, JO-ANNE, FECTEAU, GILLES, KOO, FRED, KOLLAR, LUBOR J, BARU, CHAITANYA
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung: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.