duckdb/duckdb-go
May 2026 – Jun 2026
2 Months active
Languages Used
Go
Technical Skills
GoGo programmingbackend developmentperformance optimizationJSON handlingdatabase management
Leonid Krugliak
PROFILE
Leonid Krugliak
Worked on the duckdb-go repository over two months, focusing on backend development and performance optimization using Go. Delivered features that eliminated CGO overhead in row scanning, halving scan times for large queries by replacing per-cell CGO calls with pure Go pointer arithmetic. Improved API clarity by aligning documentation with DuckDB conventions. Enhanced core data access by replacing O(N²) parameter binding with pre-built maps, yielding substantial speedups for both positional and named parameters. Explored and refined JSON marshal and unmarshal support for complex types, and addressed pointer alignment bugs, demonstrating careful attention to stability, maintainability, and cross-team collaboration throughout.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
7Total
Bugs
2
Commits
7
Features
4
Lines of code
610
Activity Months2
Your Network
82 peopleWork History
June 2026
5 Commits • 2 Features
Jun 1, 2026June 2026 monthly summary for the duckdb-go repository. Focused on delivering measurable business value through performance improvements, data handling improvements, and reliability fixes across core data access, binding, and JSON interoperability. The work demonstrates strong Go/CGO optimization, careful tradeoffs for stability, and a collaborative approach with cross-team input.
5 Commits • 2 Features
Jun 1, 2026June 2026 monthly summary for the duckdb-go repository. Focused on delivering measurable business value through performance improvements, data handling improvements, and reliability fixes across core data access, binding, and JSON interoperability. The work demonstrates strong Go/CGO optimization, careful tradeoffs for stability, and a collaborative approach with cross-team input.
June 2026
May 2026
2 Commits • 2 Features
May 1, 2026May 2026 — Focus: performance optimization and API clarity in duckdb-go. Delivered two features in the duckdb/duckdb-go repo that yield measurable throughput gains and improved maintainability. Key outcomes include a CGO-overhead elimination in the row-scanning hot path and API comments aligned with DuckDB conventions, plus documentation notes relevant to consumers of the API.
May 2026
2 Commits • 2 Features
May 1, 2026May 2026 — Focus: performance optimization and API clarity in duckdb-go. Delivered two features in the duckdb/duckdb-go repo that yield measurable throughput gains and improved maintainability. Key outcomes include a CGO-overhead elimination in the row-scanning hot path and API comments aligned with DuckDB conventions, plus documentation notes relevant to consumers of the API.
Activity
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Quality Metrics
Correctness100.0%
Maintainability88.6%
Architecture97.2%
Performance91.4%
AI Usage22.8%
Skills & Technologies
Programming Languages
Go
Technical Skills
GoGo programmingJSON handlingbackend developmentdatabase managementperformance optimization
Repositories Contributed To
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