Worked on the pg-sharding/spqr repository to enhance reliability and maintainability by focusing on targeted test coverage and terminology alignment. Developed unit tests in Go to validate the CmpRangesLessStringsDeprecated function, ensuring correct string comparison based on length and lexicographic order. Improved consistency across the codebase and documentation by standardizing distribution command terminology from 'relation' to 'table,' using SQL and database design principles. These efforts reduced regression risk and clarified user expectations, streamlining future maintenance and onboarding. The work demonstrated a methodical approach to software testing and code clarity, emphasizing robust engineering practices within a database sharding context.