During July 2025, Joan Nadal focused on stabilizing constraint management in the databricks/dbt-databricks repository by addressing a critical issue with check constraint expression normalization. Joan identified that inconsistent formatting and unintended replacements of check constraints were affecting reliability across environments. By refining the normalization logic using Python and SQL within the dbt framework, Joan ensured that check constraints are now consistently formatted and preserved during processing. This targeted bug fix improved the stability and traceability of constraint handling in the adapter. The work demonstrated a strong understanding of data engineering principles and contributed to more robust database management workflows.