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Re: Improving EXISTS

From: Gregory Williams <greg@evilfunhouse.com>
Date: Thu, 30 Jun 2016 08:15:32 -0700
Cc: public-sparql-dev@w3.org
Message-Id: <EA19F3C3-1FC5-40B2-B953-2BA7DBDD85B7@evilfunhouse.com>
To: Andy Seaborne <andy@apache.org>
On Jun 30, 2016, at 4:40 AM, Andy Seaborne <andy@apache.org> 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.

I'd join.

thanks,
.greg
Received on Thursday, 30 June 2016 15:15:57 UTC

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