Re: ISSUE-12: xs:string VS plain literals: proposed resolution

On 05/06/2011 04:22 PM, Steve Harris wrote:
<snip/>
> Not really DATATYPE("foo") is xsd:string already. http://www.w3.org/TR/rdf-sparql-query/#func-datatype

yes, but it only states that for *simple literals* (that are literals
without language type, IIRC). It does not seem to say anything about
literals with a language tag :-(

A test on dbpedia is not really compelling as both datatype("foo") and
datatype("foo"@en) seem to return NULL, which for the former would mean
a non-conformant implementation...

http://dbpedia.org/sparql?query=select+datatype%28%22foo%22%29+where+{}

http://dbpedia.org/sparql?query=select+datatype%28%22foo%22%40en%29+where+{}

  pa