+ <para>
+ The special sequence <literal>%db</literal> is replaced with
+ a single database while searching. Note that this sequence
+ is no longer needed, because the <literal>%query</literal> can already
+ query for a single database by using CQL query
+ <literal>udb==...</literal>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>attribute <literal>content_url</literal></term>
+ <listitem>
+ <para>
+ URL of Web service to be used to fetch target profile
+ for a given database (udb) of type content. Semantics otherwise like
+ <literal>url</literal> attribute above.
+ </para>