Worked on the MariaDB/server repository to enhance the stability of ALTER TABLE operations involving stored generated columns and foreign key modifications within InnoDB. Addressed a complex bug where incorrect field-to-column mapping could trigger false foreign key errors, particularly when schema changes involved both stored and virtual generated columns. Applied a targeted fix in C++ by refining the logic to skip only truly virtual columns, using database internals knowledge to ensure accurate foreign key checks. This improvement reduced downtime and support cases by making schema changes more reliable, and the code was reviewed and merged, ensuring consistent behavior for generated columns in SQL operations.