+=item B<MinVersion> I<version>
+
+=item B<MaxVersion> I<version>
+
+Specify the minimum or maximum version of PostgreSQL that this query should be
+used with. Some statistics might only be available with certain versions of
+PostgreSQL. This allows you to specify multiple queries with the same name but
+which apply to different versions, thus allowing you to use the same
+configuration in a heterogeneous environment.
+
+The I<version> has to be specified as the concatenation of the major, minor
+and patch-level versions, each represented as two-decimal-digit numbers. For
+example, version 8.2.3 will become 80203.
+
+=back
+
+The B<Result> block defines how to handle the values returned from the query.
+It defines which column holds which value and how to dispatch that value to
+the daemon.
+
+=over 4
+