trinodb/trino
Apr 2026 – May 2026
2 Months active
Languages Used
Java
Technical Skills
JDBCJavaOAuth2backend developmentintegration testingtesting
Song Gao
PROFILE
Song Gao
Worked on the trinodb/trino repository to deliver automatic OAuth2 token refresh for JDBC connections, enabling seamless token renewal and reducing connection failures from expired tokens. Replaced the static token interceptor with an ExternalAuthenticator wired to a pre-seeded KnownToken, implementing a refresh flow that triggers on 401 responses and surfaces unrecoverable cases as SQLExceptions. Added integration tests in Java to validate both successful and failure scenarios, improving reliability for composite tokens. Additionally, fixed DESCRIBE OUTPUT to correctly represent number types for clients lacking NUMBER capability, ensuring accurate metadata and more robust distributed query handling in backend development workflows.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
2Total
Bugs
1
Commits
2
Features
1
Lines of code
329
Activity Months2
Your Network
193 peopleWork History
May 2026
1 Commits
May 1, 2026May 2026 monthly summary focusing on metadata correctness and distributed query capability handling for Trino: delivered a bug fix for DESCRIBE OUTPUT type representation for clients lacking NUMBER capability and ensured proper propagation of client capabilities in spooled/distributed query paths.
1 Commits
May 1, 2026May 2026 monthly summary focusing on metadata correctness and distributed query capability handling for Trino: delivered a bug fix for DESCRIBE OUTPUT type representation for clients lacking NUMBER capability and ensured proper propagation of client capabilities in spooled/distributed query paths.
May 2026
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026: Delivered automatic OAuth2 token refresh for JDBC connections in trinodb/trino, enabling transparent token renewal and preventing connection failures due to expired tokens. Replaced the static token interceptor with ExternalAuthenticator wired to a pre-seeded KnownToken, implementing a refresh flow that triggers on 401 responses (x_token_server) and surfaces unrecoverable cases as SQLExceptions when needed. Added integration tests, including TestJdbcAccessTokenWithOAuth2RefreshToken, to validate both the happy path (token refreshed transparently) and failure path (invalid refresh token). This work improves reliability for composite tokens (e.g., JWE) and reduces downtime, delivering measurable business value through fewer reconnects and more resilient JDBC connections.
April 2026
1 Commits • 1 Features
Apr 1, 2026April 2026: Delivered automatic OAuth2 token refresh for JDBC connections in trinodb/trino, enabling transparent token renewal and preventing connection failures due to expired tokens. Replaced the static token interceptor with ExternalAuthenticator wired to a pre-seeded KnownToken, implementing a refresh flow that triggers on 401 responses (x_token_server) and surfaces unrecoverable cases as SQLExceptions when needed. Added integration tests, including TestJdbcAccessTokenWithOAuth2RefreshToken, to validate both the happy path (token refreshed transparently) and failure path (invalid refresh token). This work improves reliability for composite tokens (e.g., JWE) and reduces downtime, delivering measurable business value through fewer reconnects and more resilient JDBC connections.
Activity
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Quality Metrics
Correctness100.0%
Maintainability80.0%
Architecture90.0%
Performance80.0%
AI Usage30.0%
Skills & Technologies
Programming Languages
Java
Technical Skills
JDBCJavaOAuth2backend developmentintegration testingtesting
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