35.59. usage_privileges

35.59. `usage_privileges`
| Up | Chapter 35. The Information Schema | Home |

## 35.59. `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 35.57. usage_privileges Columns

Column 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

| Up |
| Home |