Eigenvalue-based data query

US9471633B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Jing Liu · Nanhu, CN
• Lei Qiu · Hangzhou City, CN
• Chen Wang · Chappaqua, US
• Fu Fei Xu · Beijing, CN
• Guang Zhou Zhang · Beijing, CN
• Sheng Zhao · Qingdao, CN
• Zan Zhou · Beijing, CN

Key dates

• Filing date: Mar 4, 2014
• Grant date: Oct 18, 2016
• Expiry date: Feb 12, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F16/24549
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Embodiments relate to an eigenvalue-based data query. An aspect includes receiving a query request that includes a query statement. Another aspect includes calculating eigenvalues of key component elements in the query statement. Another aspect includes matching eigenvalues of nodes in an execution plan of a historical query statement to the eigenvalues of the key component elements. Yet another aspect includes based on determining success of matching the eigenvalues of the key component elements to the eigenvalues of the nodes in an execution plan of the historical query statement, generating an execution plan of the query statement.