PostgreSQL 9.4.1 Documentation
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# 34.37. `role_udt_grants`

The view `role_udt_grants` is intended to identify `USAGE` privileges granted on user-defined types where the grantor or grantee is a currently enabled role. Further information can be found under `udt_privileges`. The only effective difference between this view and `udt_privileges` is that this view omits objects that have been made accessible to the current user by way of a grant to `PUBLIC`. Since data types do not have real privileges in PostgreSQL, but only an implicit grant to `PUBLIC`, this view is empty.

Table 34-35. `role_udt_grants` Columns

Name | Data Type | Description
--- | --- | ---
`grantor` | `sql_identifier` | The name of the role that granted the privilege
`grantee` | `sql_identifier` | The name of the role that the privilege was granted to
`udt_catalog` | `sql_identifier` | Name of the database containing the type (always the current database)
`udt_schema` | `sql_identifier` | Name of the schema containing the type
`udt_name` | `sql_identifier` | Name of the type
`privilege_type` | `character_data` | Always `TYPE USAGE`
`is_grantable` | `yes_or_no` | `YES` if the privilege is grantable, `NO` if not

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