The view role_usage_grants is meant to identify USAGE privileges granted on various kinds of objects to a group that the current user is a member of. In PostgreSQL, this currently only applies to domains, and since domains do not have real privileges in PostgreSQL, this view is empty. Further information can be found under usage_privileges. In the future, this view may contain more useful information.
Table 32-22. role_usage_grants Columns
Name
Data Type
Description
grantor
sql_identifier
In the future, the name of the user that granted the privilege
grantee
sql_identifier
In the future, the name of the group that the privilege was granted to
object_catalog
sql_identifier
Name of the database containing the object (always the current database)
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