DROP USER username
The name of an existing user.
The message returned if the user is successfully deleted.
This message occurs if the username is not found.
The DROP USER statement removes the named user from the database, along with any databases owned by the user. It does not remove tables, views, or triggers owned by the named user in databases not owned by the user. This statement can be used in the place of the destroyuser script, regardless of how the user was created.
The DROP USER statement is a PostgreSQL language extension.
Refer to the CREATE USER and ALTER USER statements for information on how to create or modify user accounts.
To drop a user account:
DROP USER Jonathan;
There is no DROP USER statement on SQL92.