Worked on the MariaDB/server repository to enhance the robustness of mathematical function handling by addressing a specific bug in logarithmic input validation. Focused on replacing the generic division-by-zero warning with more precise invalid-argument errors, this change improved error clarity for users and strengthened the reliability of SQL functions. The solution was implemented using C++ and involved careful attention to error handling and database development best practices. Additionally, commit history was streamlined by squashing related changes under a single issue, reflecting a disciplined approach to version control. The work demonstrated depth in targeted bug fixing and codebase maintainability within database systems.