Copy avoidance via static analysis for DBMS querying
US12216649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2024 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Feb 27, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2219
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a computer embodiment, in a polyglot database management system (DBMS) that contains a guest language runtime environment, a database buffer is configured that the guest language runtime environment does not manage. In the polyglot DBMS, logic that is defined in a guest language is invoked to retrieve, into the database buffer, a value stored in a database in the polyglot DBMS. Compiling the logic causes semantic analyzing the logic to detect that usage of the retrieved value cannot occur after the retrieved value is overwritten in the database buffer. When detecting that such usage of the retrieved value cannot occur, the logic is executed without, after the retrieved value is overwritten in the database buffer, retaining a copy of the retrieved value in a memory region that the guest language runtime environment manages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.