Andong Zhan is a prominent inventor based in San Mateo, CA, known for his significant contributions to the field of cloud data platforms. With a total of 14 patents to his name, Zhan has made remarkable strides in enhancing the security and efficiency of data processing systems.

Latest Patents

One of Zhan's latest patents focuses on the secure execution of user-defined functions (UDFs) within a cloud data platform. This innovative method involves receiving a request to execute a UDF contained within a sandbox process. The UDF comprises code for performing specified operations that require access to external resources. To facilitate this access, a secure egress path is established using an overlay network designed to isolate the UDF's network traffic from other processes. Authentication and authorization details for the UDF are managed externally to the sandbox process, ensuring that the UDF's functionality remains orthogonal to the cloud data platform's operations. This approach enables the secure and controlled execution of UDFs, allowing them to interact with external systems while maintaining the integrity and security of the cloud data platform environment.

Another notable patent addresses dataframe workloads using read-only data snapshots. This method provides deterministic row ordering for query result sets in a database system. The framework receives a query referencing a database table and generates a row index column in response. It determines an order associated with source files underlying the referenced table and assigns each table row a unique index value based on the file order and row position within the files. The framework executes the received query to produce a result set ordered by the generated row index column. This innovation facilitates returning the result set with consistent, reliable ordering, enabling stable positional-based access semantics when querying distributed database tables.

Career Highlights

Andong Zhan is currently employed at Snowflake Inc., where he continues to develop cutting-edge solutions for cloud data management. His work has significantly impacted the way organizations handle data security and processing efficiency.

Collaborations

Zhan collaborates with talented individuals in his field, including Derek Denny-Brown and Haowei Yu. Their combined expertise fosters an environment of innovation and creativity, leading to groundbreaking advancements in technology.

Conclusion

Andong Zhan's contributions to the field of cloud data platforms exemplify the spirit of innovation. His patents not only enhance security but also improve

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