ALTER GROUP — change a user group
ALTER GROUPgroupname
ADD USERusername
[, ... ] ALTER GROUPgroupname
DROP USERusername
[, ... ] ALTER GROUPgroupname
RENAME TOnewname
ALTER GROUP
changes the attributes of a user group.
The first two variants add users to a group or remove them from a group. Only database superusers can use this command.
The third variant changes the name of the group. Only a database superuser can rename groups.
groupname
The name of the group to modify.
username
Users that are to be added to or removed from the group. The users
must already exist; ALTER GROUP
does not create or
drop users.
newname
The new name of the group.
Add users to a group:
ALTER GROUP staff ADD USER karl, john;
Remove a user from a group:
ALTER GROUP workers DROP USER beth;