We're looking at merging two JIRA instances, and we're using a custom authenticator on one of the instances that means we can't do a straightforward query for user logins (the way we're doing things means the JIRA DB is not storing user instances).
However, we can see user activity.
What's the best way (mySQL) to retrieve only users that have created or edited an issue, returning the username, issue, and timestamp of last creation (or last edit) in something like M/D/Y TT format?