<para>
Specifies a filter which allows Pazpar2 to only include
records that meet a certain criteria in a result. Unmatched records
- will be ignored. The filter takes the form name[~value] , which
+ will be ignored. The filter takes the form name, name~value, or name=value, which
will include only records with metadata element (name) that has the
- substring (value) given. If value is omitted all records with the
- metadata present will be included.
+ substring (~value) given, or matches exactly (=value). If value is omitted all records
+ with the named
+ metadata element present will be included.
</para>
</listitem>
</varlistentry>