What value is returned in the creator_user_name field after a user takes ownership of a job?

The value returned in the creator_user_name field after a user takes ownership of a job relates to how ownership and execution contexts are handled in systems like Databricks. When a user takes ownership of a job, the creator_user_name field does not change to reflect the new owner's credentials.

User B's email will appear because their credentials trigger the runs of the job, reflecting the user who actually runs the job, rather than who created it. This means that even if ownership changes, the system continues to associate the job's execution with User B because they are responsible for running it.

Other options do not accurately reflect how ownership and job execution are tracked in Databricks. For instance, User C's email would not replace the credentials in connection to ownership; rather, ownership does not denote execution responsibility, and the original creator's email also does not persist as the ownership changes. The field being blank until the next job run does not apply either, because the information about who runs the job remains tied to the user who triggers it, regardless of ownership status.