
Chen Miao Ku developed advanced mathematical function support for Apache Doris, implementing acosh, asinh, atanh, and sinh across backend C++ and frontend Java to expand analytic capabilities and ensure API consistency. He enhanced the apache/doris-website repository by authoring comprehensive, bilingual documentation for these functions, standardizing SQL naming conventions, and improving localization workflows using Markdown. In the amazonlinux/linux repository, he contributed OpenRISC jump label support and runtime patching integration, focusing on kernel configuration, memory management, and performance optimization in C and assembly. His work demonstrated depth in cross-language development, embedded systems, and technical writing, addressing both feature delivery and maintainability.

2025-09 Monthly Summary for amazonlinux/linux focusing on delivering high-value OpenRISC enhancements, config hygiene, and stability improvements.
2025-09 Monthly Summary for amazonlinux/linux focusing on delivering high-value OpenRISC enhancements, config hygiene, and stability improvements.
April 2025 monthly summary for the apache/doris-website repository. Focused on delivering comprehensive documentation enhancements for SQL features, improving consistency, localization, and overall documentation quality to support developer onboarding and user guidance.
April 2025 monthly summary for the apache/doris-website repository. Focused on delivering comprehensive documentation enhancements for SQL features, improving consistency, localization, and overall documentation quality to support developer onboarding and user guidance.
March 2025 – Apache Doris (apache/doris): Key feature delivered: Advanced Mathematical Functions Support (acosh, asinh, atanh, sinh) implemented in backend C++ and frontend Java, with regression tests. Major bugs fixed: none reported this month. Overall impact: expands analytic capabilities, enabling complex mathematical expressions directly in Doris, improving SQL usability and downstream analytics. Technologies/skills demonstrated: cross-language development (C++/Java), regression testing, API design consistency across backend and frontend, and code review readiness.
March 2025 – Apache Doris (apache/doris): Key feature delivered: Advanced Mathematical Functions Support (acosh, asinh, atanh, sinh) implemented in backend C++ and frontend Java, with regression tests. Major bugs fixed: none reported this month. Overall impact: expands analytic capabilities, enabling complex mathematical expressions directly in Doris, improving SQL usability and downstream analytics. Technologies/skills demonstrated: cross-language development (C++/Java), regression testing, API design consistency across backend and frontend, and code review readiness.
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