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Last Call: Five SPARQL 1.1 Drafts

From: Axel Polleres <axel.polleres@deri.org>
Date: Fri, 6 Jan 2012 20:05:50 +0100
Message-Id: <E2072762-E81F-4238-84FA-039ECF72E1A9@deri.org>
To: SW-forum Web <semantic-web@w3.org>, Linking Open Data <public-lod@w3.org>
The W3C SPARQL WG is happy to announce the publication of 5 Last Call Working Drafts [1]:

SPARQL 1.1 Query Language
 --> http://www.w3.org/TR/2012/WD-sparql11-query-20120105/
SPARQL 1.1 Update
 --> http://www.w3.org/TR/2012/WD-sparql11-update-20120105/
SPARQL 1.1 Protocol
 --> http://www.w3.org/TR/2012/WD-sparql11-protocol-20120105/
SPARQL 1.1 Entailment Regimes
 --> http://www.w3.org/TR/2012/WD-sparql11-entailment-20120105/
SPARQL 1.1 Service Description
--> http://www.w3.org/TR/2012/WD-sparql11-service-description-20120105/

Publication as a Last Call Working Draft indicates that the SPARQL Working Group
believes it has addressed all substantive issues and that the documents are stable.
The Working Group expects to advance these specifications to Recommendation Status.

The end date of the Last Call review period is

 *06 February 2012*

i.e., comments on these working drafts are due on or before this date.

Comments on this document should be sent to public-rdf-dawg-comments@w3.org, a
mailing list with a public archive, see http://lists.w3.org/Archives/Public/public-rdf-dawg-comments

The SPARQL WG welcomes reports of implementations, sent to the comments address.
If we gather sufficient evidence of interoperable implementations, the group may
request to skip its Call for Implementations (Candidate Recommendation) drafts and
have the next round of publications be Proposed Recommendations.

While some of the documents published in this round had been published as "Last Call" 
before already (SPARQL 1.1 Query Language, SPARQL 1.1 Update, SPARQL 1.1 Entailment Regimes, 
SPARQL 1.1 Service Description,), the WG has decided to publish a 2nd Last Call round of 
these four documents, due to a set of not-large-but-substantive changes in response to 
LC1 comments:

* In SPARQL 1.1 Query Language:
    We have removed SHA224 from hash function choices
    We have added function STRBEFORE, STRAFTER, REPLACE
    We have broadened REGXP to take a first argument of xsd:string and rdf:langString.
    We have defined DATATYPE on language tag literals.
    We allow aggregates in ORDER BY clause
    Grammar: Backslash character escapes in prefixed names
    Grammar: Fix: Allow ASK to take solution modifiers
    Grammar: Fix: AdditiveExpression: '?' => '*'

* In SPARQL 1.1 Update: the COPY, ADD, and MOVE operations are no longer at-risk.

* In SPARQL 1.1 Entailment Regimes, a section on property paths now clarifies how property
 path expressions are evaluated under an entailment regime and the D-Entailment Regime has
 been modified to require a certain datatype map and to return only canonical representations
 of literal bindings.

* In SPARQL 1.1 Service Description, clarifying text has been added to better
 describe several components of the service description vocabulary, "SHOULD NOT"
 normative language has been changed to "MUST NOT" in the sd:EmptyGraphs section, as
 well as several updates have been made with respect to the description of services
 supporting Update requests.


best regards,
Axel Polleres, on behalf of the SPARQL WG

1. http://www.w3.org/News/2012.html#entry-9312
Received on Friday, 6 January 2012 19:06:23 GMT

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