I don't think this is possible in current API, similar to what happens by default in TextDataset .
My use case is biodiversity field observations with GPS positions . I guess an issue would be appropriate. Jean-Marc Vanel <http://semantic-forms.cc:1952/display?displayuri=http://jmvanel.free.fr/jmv.rdf%23me> +33 (0)6 89 16 29 52 Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui Chroniques jardin <http://semantic-forms.cc:1952/history?uri=http%3A%2F%2Fdbpedia.org%2Fresource%2FChronicle>
