ALTER GROUP -- Modifies the structure of a user group.
Synopsis
ALTER GROUP name ADD USER
username [, ... ]
ALTER GROUP name DROP USER
username [, ... ]
Parameters
name
The name of an existing group to alter.
username
The names of existing users you wish to add or remove from the specified group. Multiple names are delimited by commas.
Results
ALTER GROUP
The message returned when an ALTER GROUP modification is successful.
Description
Database superusers can use the ALTER GROUP command to add and remove specified users from a group. As groups can be allocated privileges, adding members to a group grants those privileges by proxy. Users must exist before they can be added to a group. Dropping a user from a group does not drop a user from the system.
Use CREATE GROUP to create a new group and DROP GROUP to remove a group. Use GRANT and REVOKE to manage privileges on a group.
Examples
The following example adds the PostgreSQL database users jessica and william to the sales group:
booktown=# ALTER GROUP sales ADD USER jessica, william;
ALTER
The next example removes the user jessica from the sales group:
booktown=# ALTER GROUP sales DROP USER jessica;
ALTER
