--- doc/src/sgml/ref/discard.sgml.orig	2021-01-08 18:02:25.837531779 +0100
+++ doc/src/sgml/ref/discard.sgml	2021-01-08 18:40:09.973630164 +0100
@@ -104,6 +104,7 @@
 DISCARD PLANS;
 DISCARD TEMP;
 DISCARD SEQUENCES;
+DISCARD VARIABLES;
 </programlisting></para>
     </listitem>
    </varlistentry>