FILTER SUBSTR(?var) not running on mavericks

[Fabio Ricci]

Hi again dear community

I was wandering whether 4store was implementing SPARQL 1.1 (http://www.w3.org/TR/sparql11-query/) since my substr expression in

PREFIX skos:<http://www.w3.org/2004/02/skos/core#>

select distinct *

{

 ?c skos:prefLabel ?preflabel .

   FILTER (SUBSTR(?preflabel,1,7)='DBPedia'@DE) .

}

is not running (finds nothing where there is a value using the direct expression 

FILTER (?preflabel='DBPedia'@DE) .

Thank you very much in advance

Cheers

Fabio

[swh]

It's implemented, but are you sure that the language tag survives a SUBSTR() function?

Try projecting out the result of the SUBSTR(), like SELECT (SUBSTR(...) as ?ss) ... to see what strings are being matched.