Independent table nodes in parallelized database environments

US8762378B2 · kind B2 · utility

Assignee

• SAP AG · DE

Inventors

• Daniel Baeumges · Viersen, DE
• Lars Fricke · Worms, DE
• Christian Hensberg · Heidelberg, DE

Key dates

• Filing date: Dec 23, 2011
• Grant date: Jun 24, 2014
• Expiry date: Jun 13, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F16/23
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A recipient node of a multi-node data partitioning landscape can receive, directly from a requesting machine without being handled by a master node, a first data request related to a table. A target node of a plurality of processing nodes can be identified to handle the data request. The determining can include the recipient node applying partitioning information to determine a target data partition of the plurality of data partitions to which the data request should be directed and mapping information associating each data partition of the plurality of data partitions with an assigned node of the plurality of processing nodes. The recipient node can redirect the data request to the target node so that the target node can act on the target data partition in response to the data request.