37.57. usage_privileges
The view
usage_privileges
identifies
USAGE
privileges granted on various kinds of
objects to a currently enabled role or by a currently enabled role.
In
PostgreSQL
, this currently applies to
collations, domains, foreign-data wrappers, foreign servers, and sequences. There is one
row for each combination of object, grantor, and grantee.
Since collations do not have real privileges
in
PostgreSQL
, this view shows implicit
non-grantable
USAGE
privileges granted by the
owner to
PUBLIC
for all collations. The other
object types, however, show real privileges.
In PostgreSQL, sequences also support
SELECT
and
UPDATE
privileges in addition to
the
USAGE
privilege. These are nonstandard and therefore
not visible in the information schema.
Table 37.55.
usage_privileges
Columns
| Name | Data Type | Description |
|---|---|---|
grantor
|
sql_identifier
|
Name of the role that granted the privilege |
grantee
|
sql_identifier
|
Name of the role that the privilege was granted to |
object_catalog
|
sql_identifier
|
Name of the database containing the object (always the current database) |
object_schema
|
sql_identifier
|
Name of the schema containing the object, if applicable, else an empty string |
object_name
|
sql_identifier
|
Name of the object |
object_type
|
character_data
|
COLLATION
or
DOMAIN
or
FOREIGN DATA WRAPPER
or
FOREIGN SERVER
or
SEQUENCE
|
privilege_type
|
character_data
|
Always
USAGE
|
is_grantable
|
yes_or_no
|
YES
if the privilege is grantable,
NO
if not
|