The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2025
Filed:
Oct. 23, 2023
Alipay (Hangzhou) Information Technology Co., Ltd., Zhejiang, CN;
Yang Yang, Hangzhou, CN;
Qunshan Huang, Hangzhou, CN;
Jun Qi, Hangzhou, CN;
Shunde Cao, Hangzhou, CN;
Pu Duan, Hangzhou, CN;
Jian Du, Hangzhou, CN;
Qingkai Mao, Hangzhou, CN;
Yang Zhao, Hangzhou, CN;
Kefeng Yu, Zhejiang, CN;
Lei Wang, Hangzhou, CN;
Benyu Zhang, Hangzhou, CN;
Alipay (Hangzhou) Information Technology Co., Ltd., Hangzhou, CN;
Abstract
Implementations of this specification provide query optimization methods, apparatuses, and systems for secure multi-party databases. In an implementation, a method includes: receiving a current query associated with a plurality of target database of a multi-party database system, generating a plurality of execution plans for the current query, determining, for each execution plan, a respective cost computation formula of a plurality of cost computation values for computing an execution cost of jointly executing the execution plan by the plurality of target databases, receiving a secure computation result from each of a plurality of query engines corresponding to the plurality of target databases, and determining an optimal execution plan having a lowest cost value in the plurality of cost computation formulas based on the secure computation result.