I would like to find the correct query to search all Jira projects and find all tickets that are in a status of closed, done and cancelled and are still assigned to a person with the end result being that all these tickets become unassigned.
Regarding the person for whom you are searching in the Assignee field - is that person still an active and valid user in your JIRA instance?
Typically you would search for tickets assigned to a particular person with
assignee=<start typing the person's name>
But if that person is no longer a valid user, or inactive/disabled, of the instance then they will not come up when you start typing their name.
But I concur with @Bill Sheboy in wondering why you would want to change the assignee for issues that are already closed?
I am curious about what problem you are trying to solve.
It would seem those issues in close, cancelled, and done were assigned to someone when they became "resolved". Why unassign them later, essentially losing the history of who worked on them? Thanks!
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