Hi Diogo,
SPARQL 1.1 actually has a YEAR function and a NOW function. The latest ARQ
likely supports them, but making D2RQ run with it is a bit of work due to a
bunch of internal ARQ changes. There's a fork in GitHub here where I believe
zazi did some work towards that:
https://github.com/zazi/d2rq/tree/d2rq-0.8
Upgrading to latest ARQ would make all the SPARQL 1.1 stuff *work* although it
would be slow unless it's built directly into the D2RQ engine.
Best,
Richard
On 23 Feb 2012, at 17:06, Diogo FC Patrao wrote:
> Hello
>
> I wonder if there's something I could do to make d2r support more functions,
> like
>
> SELECT DISTINCT ?date ?name
> {
> ?patient a :Patient;
> :patientName ?name;
> :patientDateOfBirth ?date;
> FILTER( regex( ?name, 'JOAO' ) && xsd:year( ?date ) = xsd:year(
> xsd:now() ) )
> } limit 10
>
> in order to get all people called "JOAO" which were born in the current year.
> When I try to run this function, D2R-Server logs:
>
> 15:03:35 WARN E_Function :: URI
> <http://www.w3.org/2001/XMLSchema#year> has no registered function factory
>
> And it made me wonder if it would be easy to write some extension to support
> it (and many other functions).
>
> Thanks,
>
>
> --
> diogo patrão
>
>
>
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