LeVan,Ralph writes:
 > Can someone point me to instructions or an example of how to specify
 > what relations are supported for a particular index?

It's in the commentary at:
	http://explain.z3950.org/dtd/commentary.html
though it's admittedly not super-clear.  The configInfo section says
that the config-type "relation" indicates "a relation supported by the
server or index", and section 5.1 ("index") points out that "each
index can also have its own configInfo section".

So you need something like this:

	<indexInfo>
	 <index search="true">
	  <title>Date</title>
	  <map>
	   <name set="dc">date</name>
	  </map>
	  <configInfo>
	   <supports type="relation">&lt;</supports>
	  </configInfo>
         </index>
	</indexInfo>

To say that your server supports the dc.date index, and that that
index supports the less-than operator.

HTH.

 _/|_	 ___________________________________________________________________
/o ) \/  Mike Taylor    <[log in to unmask]>    http://www.miketaylor.org.uk
)_v__/\  "The war situation has developed not necessarily to Japan's
	 advantage" -- Japan's announcement of surrender, 1945.