<set name="pz:cclmap:isbn" value="u=7"/>
<set name="pz:cclmap:issn" value="u=8"/>
<set name="pz:cclmap:date" value="u=30 r=r"/>
+q
+ <set name="pz:limitmap:title" value="rpn:@attr 1=4 @attr 6=3"/>
+ <set name="pz:limitmap:date" value="ccl:date"/>
<!-- Retrieval settings -->
</note>
</listitem>
</varlistentry>
+
+ <varlistentry>
+ <term>pz:limitmap:<replaceable>name</replaceable></term>
+ <listitem>
+ <para>
+ Specifies attributes for limiting a search to a field - using
+ the limit parameter for search. In some cases the mapping of
+ a field to a value is identical to an existing cclmap field; in
+ other cases the field must be specified in a different way - for
+ example to match a complete field (rather than parts of a subfield).
+ </para>
+ <para>
+ The value of limitmap may have one of two forms: referral to
+ an exisiting CCL field or a raw PQF string. Leading string
+ determines type; either <literal>ccl:</literal> for CCL field or
+ <literal>rpn:</literal> for PQF/RPN.
+ </para>
+ <note>
+ <para>
+ The limitmap facility is supported for Pazpar2 version 1.6.0.
+ </para>
+ </note>
+ </listitem>
+ </varlistentry>
</variablelist>