- From: Lee Feigenbaum <lee@thefigtrees.net>
- Date: Fri, 13 Mar 2009 14:25:38 -0400
- To: Alexandre Passant <alexandre.passant@deri.org>
- CC: SPARQL Working Group <public-rdf-dawg@w3.org>
Alexandre Passant wrote: > Hi, > > Le 12 mars 09 à 06:49, Lee Feigenbaum a écrit : > >> Next week I'd like to continue where we left off, with brief >> discussions of some of the more "major" suggested features that impact >> the query language itself. These include: >> >> Assignment >> Property paths - Andy >> Aggregates >> Negation >> Update >> Basic Federated Query >> Parameterized inference/control of inference > > I thinks that Path Length [1] may also be included in that list, as a > major feature. > > As it strongly relates to property path: Andy, OpenLink, any objection > to merge the two features in a single page ? > (As path length does not makes any sense without the path itself, it's > obvious for the inclusion in that direction, but I want to be sure both > of you agree on adding another feature (lenght) to your path initial > proposal.) I don't see these as being the same at all. My understanding is that property paths allow me to specify in a regular expression-like way an explicit chain that connects two nodes. For path length, you need to start having variables match arbitrary-length paths between nodes, right? (Once you ahve a variable matching a path, then it's natural to add a function to get the length of that path.) And that seems like a whole other ball of wax to me. Am I misunderstanding? Lee
Received on Friday, 13 March 2009 18:26:28 UTC