duckdb/community-extensions
Jun 2025 – Sep 2025
2 Months active
Languages Used
YAML
Technical Skills
Extension ManagementVersion ControlBuild ManagementDependency Management
Hiroaki Yutani
PROFILE
Hiroaki Yutani
Yutani contributed to cross-repository build stability and geospatial feature development across DuckDB, GDAL, and SedonaDB. In duckdb/community-extensions, Yutani aligned extension metadata and version pointers to ensure reproducible builds and compatibility with DuckDB v1.4.0, using C++ and build management skills. For OSGeo/gdal, Yutani enhanced ADBC DuckDB integration by implementing a fallback loader and updating test configurations, improving robustness in Python and C++. In apache/sedona-db, Yutani stabilized the R package build and added the ST_Azimuth geospatial function in Rust, validating changes with unit tests and benchmarking. The work demonstrated careful dependency management and cross-language engineering depth.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
8Total
Bugs
1
Commits
8
Features
4
Lines of code
573
Activity Months3
Work History
October 2025
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — concise monthly summary for apache/sedona-db highlighting business value and technical achievements. Focused on stabilizing builds, expanding geospatial capabilities, and validating changes with tests and benchmarks.
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — concise monthly summary for apache/sedona-db highlighting business value and technical achievements. Focused on stabilizing builds, expanding geospatial capabilities, and validating changes with tests and benchmarks.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025: Ensured compatibility of duckdb/community-extensions with DuckDB v1.4.0 by updating reference pointers across extensions (st-read-multi and file-dialog). No functional changes; alignment mitigates upgrade risk and preserves extension stability.
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025: Ensured compatibility of duckdb/community-extensions with DuckDB v1.4.0 by updating reference pointers across extensions (st-read-multi and file-dialog). No functional changes; alignment mitigates upgrade risk and preserves extension stability.
June 2025
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary focused on delivering robust cross-repo improvements and reproducible builds for extended DuckDB use. Key features delivered include cross-repo version alignment for extensions and improved ADBC/DuckDB integration, with emphasis on stability, test coverage, and clear version pinning.
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary focused on delivering robust cross-repo improvements and reproducible builds for extended DuckDB use. Key features delivered include cross-repo version alignment for extensions and improved ADBC/DuckDB integration, with emphasis on stability, test coverage, and clear version pinning.
June 2025
Activity
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Quality Metrics
Correctness96.2%
Maintainability95.0%
Architecture92.6%
Performance97.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++MakePythonRustYAML
Technical Skills
ADBCBenchmarkingBuild ManagementBuild SystemsC++C/C++ CompilationDatabase FunctionsDependency ManagementDriver DevelopmentDuckDBExtension ManagementGDALGeospatial DataPythonRust
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
apache/sedona-db
Oct 2025 – Oct 2025
1 Month active
Languages Used
CMakePythonRust
Technical Skills
BenchmarkingBuild SystemsC/C++ CompilationDatabase FunctionsGeospatial DataPython
OSGeo/gdal
Jun 2025 – Jun 2025
1 Month active
Languages Used
C++Python
Technical Skills
ADBCC++Driver DevelopmentDuckDBGDALPython