Re: RDF vocabulary for relational algebra

SPIN defines an RDF representation for SPARQL queries. It's SPARQL-specific though, and not as abstract as relational algebra.

Richard

[1] http://spinrdf.org/


> On 15 Jan 2014, at 08:20, Miguel <miguel.ceriani@gmail.com> wrote:
> 
> Hi,
> I'm not aware of such a vocabulary but I'm interested in the problem too.
> 
> As a syntax to represent the SPARQL algebra (that seems to me a subset of your problem), Jena provides SSE[1].
> SSE could be mapped to a RDF vocabulary (there is also a SSE-to-RDF mapping in [2] but it doesn't convey semantics cause everything is represented as lists).
> 
> Best,
> Miguel
> 
> [1] http://jena.apache.org/documentation/notes/sse.html
> [2] http://jena.apache.org/documentation/notes/sse.html#mapping-to-rdf
> 
> 
>> On Wed, Jan 15, 2014 at 5:52 AM, Paul Tyson <phtyson@sbcglobal.net> wrote:
>> Does anyone know of a published RDF vocabulary for relational algebra
>> concepts and operators?
>> 
>> Use case is for abstract specification of a query, which could be cast
>> into SQL, SPARQL, or some other RA implementation language.
>> 
>> Regards,
>> --Paul
>