SPARQL2 Status

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SPARQL2 Status - Presentation Transcript

2

What’s coming and what might be coming?

September, 2009

Latest at http://www.slideshare.net/LeeFeigenbaum/sparql2-status

Lee Feigenbaum, Co-chair, SPARQL Working Group

lee@thefigtrees.net

Disclaimer

The SPARQL Working Group has not yet decided many of the technical questions surveyed in these slides. All examples are subject to change; please do not construe them as indicators or endorsements of specific technical designs/decisions.

All opinions are Lee Feigenbaum’s alone.

Naming

I use “SPARQL2” to collectively refer to the work of the 2nd SPARQL Working Group. The actual languages being worked on are known as:SPARQL/Query 1.1SPARQL/Update 1.0

Where are we now?

Today

August 2010

March 2009

???

Last Call and beyond of core SPARQL specifications

July 2009

FPWD of SPARQL New Features and Rationales document

September 2009

FPWD of core SPARQL specifications

Overview

Projected Expressions

Select expressions other than variables (literals, functions on literals and variables, etc.)

Issues around:

Do expressions require an aliased name?

Syntax (main issue here)

SELECT ?price * ?qty AS ?total_price

WHERE {

...

Original URL

http://www.slideshare.net/LeeFeigenbaum/sparql2-status

http://www.slideshare.net/LeeFeigenbaum/sparql2-status