User and group with same name

GRANT operation [ { ,operation }_ ] ON table_name [ { ,table_name }_ ]

TO user [ { ,user }_ ] [ WITH GRANT OPTION ] [ ; ]

Quoting from the manual, "user : Specifies the name of the user (group) to be granted. Enter the login name of the database user or PUBLIC, a system-defined user. If PUBLIC is specified, all database users are granted with the permission.".

This means that if a user with the same name as a group is given, then all users belonging to that group will receive the privileges and not just the user specified.

This is not an answer, but a comment to the above answer!

It looks that the QA module does not have support for comments splitted on multiple lines...

So I'm posting my comment as an answer...

I don't think the answer is correct. It looks that actually cubrid does not allow an user and a group with the same name:

cubrid> create user usr1;
Command executed. (0.02 sec)

cubrid> create user usr1 groups usr1;
Error -142: Adding member causes the user hierarchy to become a cyclic graph.

Moreover, trying to directly create a group, create an user and assign to the group and then trying to create an user with the group name givs this error:

Error -164: User "usr1" already exists.

So it looks that definitely you can't have an user with the same name as a group... Is this correct?