Re: deciding on rdf:PlainLiteral this week

From: "Seaborne, Andy" <andy.seaborne@hp.com>
Subject: RE: deciding on rdf:PlainLiteral this week
Date: Mon, 1 Jun 2009 09:05:03 -0500

> I am looking for explicit text that covers the use of SPARQL extended
> matching [3] but the draft does not include any text that refers to,
> only to SPARQL syntax and SPARQL results. 

Umm.  What more do you want?

> [1] option 2 would cover it.  Section 4 is a tolerable place to put it
> tough not ideal. 
> 
> The response in [2] did mention  "queries, bindings, and results"
> which is not very precise but at least covers the right area.
> However, I now can't find any mention of that text in the current
> .../PlainLiteral draft. 
> 
> Section 4 says
> "in syntaxes for RDF graphs and for SPARQL"
> "do not occur in syntaxes for RDF graphs, nor in syntaxes for SPARQL."
> 
> This is SPARQL syntax (the query string), not the matching (the output
> of the matching step).  Because rdf:PlainLiteral covers a non-datatype
> aspect, it need to be clear that bindings from BGP extended matching
> MUST be in existing forms. 

What forms?  In a *very* strong sense, rdf:PlainLiteral typed literals
are already in existing forms.

> This also does not cover it:
> "in existing syntaxes for RDF graphs and SPARQL results."
> 
> We are not talking just about SPARQL XML results format (which should
> be covered) but about how the extended matching fits into existing
> implementations and how bindings flow from one BGP matching to another
> in the same query, possibly where the BGP matching are under different
> entailment regimes.  Applying to the extended matching would
> automatically include SPARQL XML results although it is good to call
> those out anyway, as the draft does (may be written by a non-SPARQL
> engine). 

Are you saying that you want to change the internals of SPARQL?

> 	Andy
> 
> 
> [1] http://lists.w3.org/Archives/Public/public-rdf-text/2009AprJun/0229.html
> [2] http://lists.w3.org/Archives/Public/public-rdf-text/2009AprJun/0230.html
> [3] http://www.w3.org/TR/rdf-sparql-query/#sparqlBGPExtend

peter

Received on Monday, 1 June 2009 16:11:15 UTC