Re: RDF vocabulary for relational algebra

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
>
>
>