*** a/doc/src/sgml/ddl.sgml
--- b/doc/src/sgml/ddl.sgml
***************
*** 2411,2416 **** VALUES ('New York', NULL, NULL, 'NY');
--- 2411,2420 ----
          constraints on this table, unless you intend them to
          be applied equally to all partitions.  There is no point
          in defining any indexes or unique constraints on it, either.
+         Because triggers on this table will not be fired for operations
+         on the related partitions, there is usually no reason to create
+         triggers on it other than the optional trigger described below
+         to redirect operations to the appropriate partitions.
         </para>
        </listitem>