oap-project/velox
May 2025 – Jul 2025
2 Months active
Languages Used
C++
Technical Skills
Error HandlingFunction RefactoringUnit TestingC++C++ DevelopmentConnector Development
Zhiying Liang
PROFILE
Zhiying Liang
Zhiying Li contributed to the oap-project/velox repository by developing core TPCH connector capabilities, enabling metadata management and server-side registration to support TPCH data access across Velox and Presto Server. Using C++ and focusing on connector development and database integration, Zhiying implemented metadata handling for the TpchConnector and established catalog-based configuration for broader interoperability. Additionally, Zhiying addressed edge-case handling in the slice() function, introducing robust input validation and error handling to align with Presto Java behavior. This work improved the reliability and predictability of query results, demonstrating careful attention to cross-engine consistency and maintainable code quality.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
3Total
Bugs
1
Commits
3
Features
1
Lines of code
75
Activity Months2
Your Network
2428 people
Work History
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for oap-project/velox: Delivered core TPCH connector capabilities, establishing metadata handling and server-side registration to enable TPCH data access across Velox and Presto Server. This supports benchmark-driven analytics and faster onboarding of TPCH workloads; commits implemented metadata for TpchConnector and added TPCH connector support in Presto Server, laying groundwork for catalog-based configuration and broader interoperability.
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for oap-project/velox: Delivered core TPCH connector capabilities, establishing metadata handling and server-side registration to enable TPCH data access across Velox and Presto Server. This supports benchmark-driven analytics and faster onboarding of TPCH workloads; commits implemented metadata for TpchConnector and added TPCH connector support in Presto Server, laying groundwork for catalog-based configuration and broader interoperability.
July 2025
May 2025
1 Commits
May 1, 2025May 2025 Velox (oap-project/velox): Edge-case hardening for slice() and cross-engine consistency; improved robustness and reliability with focused bug fix. 1) Key features delivered: - Robust edge-case handling for slice(): negative length now throws a user-defined error (instead of returning an empty array), aligning with Presto Java behavior. 2) Major bugs fixed: - Negative length inputs now validated with a dedicated error path; aligns with Presto Java behavior. Commit: 0895a72fa08cb4ab5a47c5d3944623ca9e358da4 (#13411). 3) Overall impact and accomplishments: - Increased correctness and reliability of slice operations; reduced risk of silent failures and improved cross-engine parity, supporting more predictable query results for users migrating or integrating with Presto-based pipelines. 4) Technologies/skills demonstrated: - C++ Velox development, robust input validation, cross-language parity with Presto Java, code review and change management.
May 2025
1 Commits
May 1, 2025May 2025 Velox (oap-project/velox): Edge-case hardening for slice() and cross-engine consistency; improved robustness and reliability with focused bug fix. 1) Key features delivered: - Robust edge-case handling for slice(): negative length now throws a user-defined error (instead of returning an empty array), aligning with Presto Java behavior. 2) Major bugs fixed: - Negative length inputs now validated with a dedicated error path; aligns with Presto Java behavior. Commit: 0895a72fa08cb4ab5a47c5d3944623ca9e358da4 (#13411). 3) Overall impact and accomplishments: - Increased correctness and reliability of slice operations; reduced risk of silent failures and improved cross-engine parity, supporting more predictable query results for users migrating or integrating with Presto-based pipelines. 4) Technologies/skills demonstrated: - C++ Velox development, robust input validation, cross-language parity with Presto Java, code review and change management.
Activity
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Quality Metrics
Correctness93.4%
Maintainability93.4%
Architecture93.4%
Performance86.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
C++C++ DevelopmentConnector DevelopmentDatabase IntegrationError HandlingFunction RefactoringMetadata ManagementUnit Testing
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