[Mediawiki-l] user account deletion and no reference constraints to user table

Hello,

Does MW have out-of-box feature for WikiSysop to remove a user account?

If not, what happen if I manually remove a user account? Many dead links? non-functioning system?

I am not sure whether other people have noticed that there are NO reference constraints to the user table from other MW tables. User accounts are stored in the user table. Anybody knows why MW development team did NOT create references to user table? Obviously, many other tables have user information such as user_id, but why no database reference constraints to enforce data integrity?

Any info is really appreciated.

Thanks, David

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