In April 2025, Ystrauch focused on improving SQL translation correctness in the ibis-project/ibis repository by addressing a critical bug affecting join limits and projections. Using Python and SQL, Ystrauch refactored the ibis.to_sql() logic, introducing dedicated helper functions to encapsulate the application of limits and projections. This approach enhanced both the maintainability and accuracy of SQL query generation, directly resolving issue #11105 and reducing user-reported translation errors. The work demonstrated a strong emphasis on code refactoring and testing, resulting in more reliable handling of complex queries and contributing to the long-term stability of the ibis.py codebase.