+ <term>pz:pqf_strftime</term>
+ <listitem>
+ <para>
+ Allows you to extend a query with dates and operators.
+ The provided string allows certain substitutions and serves as a
+ format string.
+ The special two character sequence '%%' gets converted to the
+ original query. Other characters leading with the percent sign are
+ conversions supported by strftime.
+ All other characters are copied verbatim. For example, the string
+ <literal>@and @attr 1=30 @attr 2=3 %Y %%</literal>
+ would search for current year combined with the original PQF (%%).
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>