Worked on the microsoft/mssql-python repository to enhance the robustness of DECIMAL value parsing, focusing on scenarios involving different decimal separators. Addressed a bug by removing unused decimal separator code from the bulk fetch path and introduced regression tests to ensure consistent parsing regardless of the setDecimalSeparator() configuration. This targeted fix improved reliability for locale-aware deployments and aligned with both internal processes and external issue tracking, specifically referencing GitHub Issue #295. The work involved Python programming, database management, and unit testing, and included collaboration with other contributors while adhering to established pull request guidelines and comprehensive regression test coverage.