Worked on the ibis-project/ibis repository to address a critical issue in SQL translation correctness, focusing on improving how join limits and projections are handled in complex queries. Applied code refactoring techniques in Python to encapsulate translation logic within new helper functions, specifically apply_limit and apply_projections, which enhanced both maintainability and accuracy. Utilized SQL expertise to ensure that the revised logic produced more reliable query outputs, directly reducing user-reported issues related to query accuracy. Emphasized thorough testing throughout the process, resulting in a more robust SQL conversion pipeline and improved long-term maintainability for the ibis.py codebase.