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sd:EmptyGraphs text

From: Lee Feigenbaum <lee@thefigtrees.net>
Date: Wed, 06 Apr 2011 11:06:13 -0400
Message-ID: <4D9C8165.2000103@thefigtrees.net>
To: SPARQL Working Group <public-rdf-dawg@w3.org>
(This is for ACTION-406.)

The text for sd:EmptyGraphs currently reads:

"""
sd:EmptyGraphs, when used as the object of the sd:feature property, 
indicates that the underlying graph store supports empty graphs. Such 
support impacts operations that might otherwise trigger the removal of a 
graph from the graph store.
"""

I'd suggest this modification:

"""
sd:EmptyGraphs, when used as the object of the sd:feature property, 
indicates that the underlying graph store supports empty graphs. A graph 
store that supports empty graphs SHOULD NOT remove graphs that are left 
empty after triples are removed from them. (See 3.1 Graph Update in 
SPARQL 1.1 Update.)
"""

...with a link to 
http://www.w3.org/2009/sparql/docs/update-1.1/Overview.xml#graphUpdate .

Greg, if you think this is OK / helps, please include it. If not, then 
please don't include it. :-)

Lee
Received on Wednesday, 6 April 2011 15:06:44 GMT

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