apache/shardingsphere
Feb 2026 – Jun 2026
4 Months active
Languages Used
JavaMarkdownYAMLXML
Technical Skills
JavaJava DevelopmentSQLSQL ParsingUnit Testingdatabase management
ym0506
PROFILE
Ym0506
Contributed to the apache/shardingsphere project by building and refining core features that improved sharding reliability, SQL federation robustness, and encryption rule safety. Focused on parser correctness, metadata accuracy, and developer onboarding, this work included enhancements to PostgreSQL and MySQL parsing, regression test coverage for encryption rules, and fixes for correlated pushdown in SQL federation. Leveraged Java, SQL, and CI/CD practices to deliver reliable routing, efficient end-to-end validation, and maintainable test suites. Emphasized test-driven development and documentation, ensuring that new features and bug fixes reduced production risk and supported consistent, correct behavior across complex distributed database scenarios.
Overall Statistics
Feature vs Bugs
57%Features
Repository Contributions
7Total
Bugs
3
Commits
7
Features
4
Lines of code
733
Activity Months4
Your Network
1228 peopleWork History
June 2026
1 Commits
Jun 1, 2026June 2026 monthly summary for apache/shardingsphere focusing on delivering robustness improvements to SQL Federation and strengthening test coverage.
1 Commits
Jun 1, 2026June 2026 monthly summary for apache/shardingsphere focusing on delivering robustness improvements to SQL Federation and strengthening test coverage.
June 2026
May 2026
1 Commits • 1 Features
May 1, 2026May 2026: Strengthened encryption-rule reliability in apache/shardingsphere through expanded regression testing and test-suite improvements. Delivered regression coverage for recreating dropped encryption rules, broadened scenarios for encryption-rule handling, and implemented style fixes to enhance test readability and maintainability. No major bug fixes this month; the work reduces production risk and accelerates safe evolution of encryption features. Skills demonstrated include regression testing, test-quality improvements, and adherence to code style standards.
May 2026
1 Commits • 1 Features
May 1, 2026May 2026: Strengthened encryption-rule reliability in apache/shardingsphere through expanded regression testing and test-suite improvements. Delivered regression coverage for recreating dropped encryption rules, broadened scenarios for encryption-rule handling, and implemented style fixes to enhance test readability and maintainability. No major bug fixes this month; the work reduces production risk and accelerates safe evolution of encryption features. Skills demonstrated include regression testing, test-quality improvements, and adherence to code style standards.
March 2026
2 Commits • 1 Features
Mar 1, 2026Monthly summary for 2026-03 focused on delivering reliability and correctness improvements for the apache/shardingsphere project. Key work included fixing HASH_MOD routing correctness across numeric types and enhancing the E2E-SQL workflow reliability and efficiency. Commits referenced: 88f305a0a598da754f15884dc991672b5ff74ac8 (Fix HASH_MOD routing mismatch for same negative numeric value; add compatibility switch for numeric normalization) and 9ba3ce947ffaffbbf457e8ebfb19d146b8a167c8 (Fix intermittent checkout ref failures; refine e2e-sql checkout ref selection; reuse source snapshot; reduce artifact size). Business impact emphasizes correct routing for negative numeric values, consistent behavior across numeric types, and more efficient, reliable end-to-end validation with smaller CI artifacts.
2 Commits • 1 Features
Mar 1, 2026Monthly summary for 2026-03 focused on delivering reliability and correctness improvements for the apache/shardingsphere project. Key work included fixing HASH_MOD routing correctness across numeric types and enhancing the E2E-SQL workflow reliability and efficiency. Commits referenced: 88f305a0a598da754f15884dc991672b5ff74ac8 (Fix HASH_MOD routing mismatch for same negative numeric value; add compatibility switch for numeric normalization) and 9ba3ce947ffaffbbf457e8ebfb19d146b8a167c8 (Fix intermittent checkout ref failures; refine e2e-sql checkout ref selection; reuse source snapshot; reduce artifact size). Business impact emphasizes correct routing for negative numeric values, consistent behavior across numeric types, and more efficient, reliable end-to-end validation with smaller CI artifacts.
March 2026
February 2026
3 Commits • 2 Features
Feb 1, 2026February 2026: Focused on correctness, metadata accuracy, and developer onboarding. Achievements include parser correctness fixes that prevent misrouting, more accurate metadata loading for MySQL, and new RAL/JSON metadata documentation, collectively increasing sharding reliability, reducing backend churn, and improving operator visibility.
February 2026
3 Commits • 2 Features
Feb 1, 2026February 2026: Focused on correctness, metadata accuracy, and developer onboarding. Achievements include parser correctness fixes that prevent misrouting, more accurate metadata loading for MySQL, and new RAL/JSON metadata documentation, collectively increasing sharding reliability, reducing backend churn, and improving operator visibility.
Activity
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Quality Metrics
Correctness94.2%
Maintainability82.8%
Architecture82.8%
Performance82.8%
AI Usage22.8%
Skills & Technologies
Programming Languages
JavaMarkdownXMLYAML
Technical Skills
CI/CDDevOpsGitHub ActionsJavaJava DevelopmentSQLSQL ParsingSharding AlgorithmsTestingUnit Testingdatabase managementdocumentationtest-driven developmentunit testing
Repositories Contributed To
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