Re: Improving EXISTS

Like others I haven't yet fully gotten my head around the nature of the problem 
(still catching up on my mails after holiday), but I am keen to help out where I 
can.

Cheers,

Jeen

On 30/06/16 23:40, Andy Seaborne wrote:
> There are bugs in the SPARQL specification with regards to EXISTS. The
> RDF Data Shapes working group uses EXISTS, and other related mechanisms,
> in SHACL [1].
>
> W3C process for corrections is recognized generally to be inflexible. It
> is normally to wait for the next WG to run and end which is a multiyear
> cycle - that does not fit with the RDF Data Shapes WG timescale.
>
> Community Groups can publish reports. These are not W3C standards. They
> do provide a way to record consensus or enumerate alternatives. This
> could be used to supplement the SPARQL errata process [2].
>
> A suggestion is to use the W3C Community Group mechanism to describe a
> solution to this specific area in a timely manner. The CG would document
> a solution and create tests to pass over to the "RDF Tests" CG [3].  If
> there is no single consensus on one solution within the SPARQL
> community, including implementers and users, we can at least document a
> small set of approaches and note the approaches taken by implementations.
>
> Thoughts and comments?
>
> Please indicate if you would join such an effort.
>
>  Andy
>
> [1] http://w3c.github.io/data-shapes/shacl/
> [2] https://www.w3.org/2013/sparql-errata
> [3] https://www.w3.org/community/rdf-tests/
>
>

Received on Friday, 1 July 2016 03:32:49 UTC