- From: Andy Seaborne <andy.seaborne@epimorphics.com>
- Date: Fri, 04 May 2012 13:49:24 +0100
- To: SPARQL Working Group <public-rdf-dawg@w3.org>
Currently, all the material is in place in the editors' working draft. At this point, I thinks it's ready for review. Section: 9 Property Paths This is the descriptive text for property paths http://www.w3.org/2009/sparql/docs/query-1.1/rq25.xml#propertypaths The translation to the algebra has two parts: Section: 18.2.2.2 Translate Property Path Expressions Convert abstract syntax to an algebra form. http://www.w3.org/2009/sparql/docs/query-1.1/rq25.xml#sparqlTranslatePathExpressions Section: 18.2.2.3 Translate Property Path Patterns Translate some forms to triple patterns and put a top level "path" oeprator into the algebra. (the only forms flattened here are the ones needed to create basic graphs patterns anad hence form with entailment) http://www.w3.org/2009/sparql/docs/query-1.1/rq25.xml#sparqlTranslatePathPatterns And then there's evaluation; now every path form is defined fro evaluation because translation does not deal with one form inside another (this was a weakness of the previous specs). Section 18.4 Property Path Patterns http://www.w3.org/2009/sparql/docs/query-1.1/rq25.xml#PropertyPathPatterns (c.f. 18.3 Basic Graph Patterns) Andy
Received on Friday, 4 May 2012 12:49:59 UTC