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Re: definition of "potentially bound" variable

From: Andy Seaborne <andy.seaborne@epimorphics.com>
Date: Tue, 14 Sep 2010 10:44:35 +0100
Message-ID: <4C8F4403.2060400@epimorphics.com>
To: Axel Polleres <axel.polleres@deri.org>
CC: SPARQL Working Group <public-rdf-dawg@w3.org>

On 14/09/10 09:58, Axel Polleres wrote:
> As for ACTION-304 I started a formal definition of "potentially bound" variable at
> http://www.w3.org/2009/sparql/wiki/Potentially_bound
> this is not finished, but just to get the direction clear, based on that we can hopefully redefine "*".

Added MINUS (only the LHS), SERVICE and GROUP BY (assuming name 
introduction in GROUP BY)

The other definitions need to work with GROUP BY which hides the non-key 
variables variables.  To do this, it would seem easier to define the 
concept recursively, not declaratively.


Received on Tuesday, 14 September 2010 09:45:12 UTC

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