Complete the documentation of the USAGE privilege for foreign servers

The GRANT reference page failed to mention that the USAGE privilege
allows modifying associated user mappings, although this was already
documented on the CREATE/ALTER/DROP USER MAPPING pages.

diff --git a/doc/src/sgml/ref/grant.sgml b/doc/src/sgml/ref/grant.sgml
index ceda72c141d285c3151a8c9185311e58a52a1f3f..c25af579976ec87cc9eba1ed191961b511dad84a 100644 (file)
--- a/doc/src/sgml/ref/grant.sgml
+++ b/doc/src/sgml/ref/grant.sgml
@@ -322,8 +322,10 @@ GRANT <replaceable class="PARAMETER">role</replaceable> [, ...] TO <replaceable
        to create new servers using that foreign-data wrapper.
       </para>
       <para>
-       For servers, this privilege enables the grantee to query the
-       options of the server and associated user mappings.
+       For servers, this privilege enables the grantee to create,
+       alter, and drop his own user's user mappings associated with
+       that server.  Also, it enables the grantee to query the options
+       of the server and associated user mappings.
       </para>
      </listitem>
     </varlistentry>