<title><structname>role_table_grants</structname> Columns</title>
   <tgroup cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       Column Type
      </para>
      <para>
       Description
      </para></entry>
     </row>
    </thead>

    <tbody>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>grantor</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the role that granted the privilege
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>grantee</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the role that the privilege was granted to
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_catalog</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the database that contains the table (always the current database)
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_schema</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the schema that contains the table
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>table_name</structfield> <type>sql_identifier</type>
      </para>
      <para>
       Name of the table
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>privilege_type</structfield> <type>character_data</type>
      </para>
      <para>
       Type of the privilege: <literal>SELECT</literal>,
       <literal>INSERT</literal>, <literal>UPDATE</literal>,
       <literal>DELETE</literal>, <literal>TRUNCATE</literal>,
       <literal>REFERENCES</literal>, or <literal>TRIGGER</literal>
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>is_grantable</structfield> <type>yes_or_no</type>
      </para>
      <para>
       <literal>YES</literal> if the privilege is grantable, <literal>NO</literal> if not
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>with_hierarchy</structfield> <type>yes_or_no</type>
      </para>
      <para>
       In the SQL standard, <literal>WITH HIERARCHY OPTION</literal>
       is a separate (sub-)privilege allowing certain operations on
       table inheritance hierarchies.  In PostgreSQL, this is included
       in the <literal>SELECT</literal> privilege, so this column
       shows <literal>YES</literal> if the privilege
       is <literal>SELECT</literal>, else <literal>NO</literal>.
      </para></entry>
     </row>
    </tbody>
   </tgroup>
  </table>
 </sect1>

 <sect1 id="infoschema-role-udt-grants">
  <title><literal>role_udt_grants</literal></title>

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

  <table>
   <title><structname>role_udt_grants</structname> Columns</title>
   <tgroup cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para