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Johannes Westphal

PROFILE

Johannes Westphal

Jojo focused on enhancing the correctness and stability of time data handling in the timescale/timescaledb repository, addressing a critical issue in UUID v7 timestamp decoding. By identifying and resolving a microsecond truncation error during timestamp extraction, Jojo improved the reliability of time-sensitive analytics without introducing new features. The solution involved precise C programming and careful management of UUID data structures, ensuring microsecond-level accuracy for downstream database operations. Jojo’s work demonstrated strong debugging skills and attention to data integrity, with clear commit messages and issue linkage that facilitated traceability and reviewability for other contributors relying on accurate time data.

Overall Statistics

Feature vs Bugs

0%Features

Repository Contributions

1Total
Bugs
1
Commits
1
Features
0
Lines of code
15
Activity Months1

Work History

October 2025

1 Commits

Oct 1, 2025

Month: 2025-10 • Focused on correctness and stability of the time data path in timescale/timescaledb. Delivered a critical bug fix to UUID v7 timestamp decoding precision, eliminating a 1 microsecond truncation error in timestamp extraction and improving reliability for time-sensitive analytics. The change enhances data correctness without introducing new features, and closes the linked issue #8875. This work demonstrates strong debugging, precise data handling, and clear commit-based traceability, reinforcing the product's trustworthiness for users relying on high-precision time data.

Activity

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Quality Metrics

Correctness100.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C

Technical Skills

C programmingUUID handlingdatabase management

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

timescale/timescaledb

Oct 2025 Oct 2025
1 Month active

Languages Used

C

Technical Skills

C programmingUUID handlingdatabase management