Query optimization methods, apparatuses, and systems for secure multi-party database
US12259885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2023 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Oct 23, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/46
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.