- From: Olivier Corby <Olivier.Corby@sophia.inria.fr>
- Date: Tue, 29 Sep 2009 14:43:57 +0200
- To: "Seaborne, Andy" <andy.seaborne@hp.com>, SPARQL Working Group <public-rdf-dawg@w3.org>
1/ Property paths only mention IRIs or prefixed names. +1 The most conservative choice. Still need to relate to entailment. 2/ Property paths with variables and IRIs or prefixed names. (issues include restriction of what can be asked a la ?p* discussion) 0 or a joker syntax that matches any property +1 3/ With access to the length of the path matched Issues include how multiple paths between two nodes are handled (two lengths possible). +1 4/ With access to the path matched (path-valued variables is one possibility) Issues as 3 + what is a path value "datatype". +1 and a statement that enables to enumerate the path triples : path ?path {?x ?p ?y} +1 For all of them: add an option to have 5/ A mechanism that will allow a variety of path matching schemes, and provide one such system. Roughly, this would involve defining syntax so various different approaches can at least use common syntax but choose from 1-4 as to what the WG describes in this round of standardization and show the relationship to the syntax. E.g having a PATH keyword idea in [1]. Then 6/ Do nothing in this round - too early to standardise. -1
Received on Tuesday, 29 September 2009 12:44:36 UTC