UPDATING STATISTICS IN DISTRIBUTED DATABASES

UPDATING STATISTICS IN DISTRIBUTED DATABASES

Updating statistics in distributed databases includes storing global statistics about at least one distributed table column distributed across multiple database nodes, where the global statistics have sensitive data for a query plan optimization process and insensitive data for the query plan optimi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: VANDIVER, BENJAMIN M, KESWANI, SUMEET SURESH, TRAN, HOA BINH NGA
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Updating statistics in distributed databases includes storing global statistics about at least one distributed table column distributed across multiple database nodes, where the global statistics have sensitive data for a query plan optimization process and insensitive data for the query plan optimization process, and updating the sensitive data of the global statistics more frequently than the insensitive data.