- From: Andy Seaborne <andy.seaborne@talis.com>
- Date: Tue, 08 Dec 2009 14:37:33 +0000
- To: SPARQL Working Group <public-rdf-dawg@w3.org>
On 08/12/2009 12:50, Axel Polleres wrote: > p.s.: > just two questions which I don't really get yet in the proposal on [1] yet, before I forget... > > 1) Does this mapping cover left-to-right evaluation as in [2], is it intended to? Yes. > 2) I understand that the case discusseed in [3] is forbidden by this definition, yes? Yes - see the algebra translation: """ variable must not appear in VS; if it does then generate a syntax error and stop """ and explaination text: """ The syntax error arises for use of a variable in as the target of AS (e.g. ... AS ?x) when the variable is used inside the WHERE clause of the SELECT. """ > > Hear you in two hours... > > thanks, > Axel > > 1. http://www.w3.org/2009/sparql/docs/query-1.1/select-expr-defs-1-1.html > 2. http://lists.w3.org/Archives/Public/public-rdf-dawg/2009OctDec/0418.html > 3. http://lists.w3.org/Archives/Public/public-rdf-dawg/2009OctDec/0425.html > Andy
Received on Tuesday, 8 December 2009 14:37:49 UTC