On this page  
  
  
The DROP USER statement removes one or more SQL users.
Tip:
You can also use the cockroach user rm command to remove users.Required privileges
The user must have the DELETE privilege on the system.users table.
Synopsis
Parameters
| Parameter | Description | 
|---|---|
| user_name | The username of the user to remove. To remove multiple users, use a comma-separate list of usernames. You can use SHOW USERSto find usernames. | 
Example
All of a user's privileges must be revoked before the user can be dropped.
In this example, first check a user's privileges. Then, revoke the user's privileges before removing the user.
> SHOW GRANTS ON test.customers FOR mroach;
+-----------+--------+------------+
|   Table   |  User  | Privileges |
+-----------+--------+------------+
| customers | mroach | CREATE     |
| customers | mroach | INSERT     |
| customers | mroach | UPDATE     |
+-----------+--------+------------+
(3 rows)
> REVOKE CREATE,INSERT,UPDATE ON test.customers FROM mroach;
> DROP USER mroach;