diff --git a/doc/src/sgml/textsearch.sgml b/doc/src/sgml/textsearch.sgml
new file mode 100644
index 4dc52ec..1a2f040
*** a/doc/src/sgml/textsearch.sgml
--- b/doc/src/sgml/textsearch.sgml
*************** SELECT plainto_tsquery('supernovae stars
*** 3614,3621 ****
     allows the implementation of very fast searches with online update.
     Partitioning can be done at the database level using table inheritance,
     or by distributing documents over
!    servers and collecting search results using the <xref linkend="dblink"/>
!    module. The latter is possible because ranking functions use
     only local information.
    </para>
  
--- 3614,3622 ----
     allows the implementation of very fast searches with online update.
     Partitioning can be done at the database level using table inheritance,
     or by distributing documents over
!    servers and collecting external search results, e.g. via <link
!    linkend="ddl-foreign-data">Foreign Data</link> access.
!    The latter is possible because ranking functions use
     only local information.
    </para>