As I understand it, GeoNetwork does not support XPATH to specify query
criteria in a CSW request. Instead, the only <PropertyName> values that can
be used in an ogc:Filter are Lucene index fields. I found this document:
http://trac.osgeo.org/geonetwork/wiki/XPATH, suggesting that at some point
there was some thought put into remedying this situation, but I'm curious if
there has been any progress. Is there any plan to support XPATH in the
future?
Thanks,
Ryan