| 发明名称 |
EIGENVALUE-BASED DATA QUERY |
| 摘要 |
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. |
| 申请公布号 |
US2014358895(A1) |
申请公布日期 |
2014.12.04 |
| 申请号 |
US201414196112 |
申请日期 |
2014.03.04 |
| 申请人 |
International Business Machines Corporation |
发明人 |
Liu Jing Jing;Qiu Lei;Wang Chen;Xu Fu Fei;Zhang Guang Zhou;Zhao Sheng;Zhou Zan |
| 分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for an eigenvalue-based data query, comprising:
receiving a query request that includes a query statement; calculating eigenvalues of key component elements in the query statement; matching eigenvalues of nodes in an execution plan of a historical query statement to the eigenvalues of the key component elements; and based on determining success of matching the eigenvalues of the key component elements to the eigenvalues of the nodes in the execution plan of the historical query statement, generating an execution plan of the query statement. |
| 地址 |
Armonk NY US |
