Re: NULLs and the direct mapping (ISSUE-42) (was: Re: Q: ISSUE-41 bNode semantics)

On 19 May 2011, at 14:24, David McNeil wrote:
> The other question is whether it is more practical to query on the presence of a NULL value in a triple rather than the absence of a triple especially in light of the goal of using SPARQL 1.0.

Mapping NULL to a literal or URI might kinda sorta work in SPARQL, but wreaks havoc with RDFS, OWL and RIF. I seriously don't think it's an option.


Received on Thursday, 19 May 2011 19:49:13 UTC