Re: Changes to Query 1.1 doc

On 29/11/10 16:23, Steve Harris wrote:
> Editorial

> * Allow GROUP_CONCAT to work on values other than xsd:string

This is more than editorial :-).

GROUP_CONCAT({<http://example/>,2,3}) is now "http://example/23" whereas 
previously it was an error.

SUM does not cast.  We decided that the mixed types in SPARQL meant it 
was better to have a non-casting SUM because the application writer can 
always add SUM(xsd:double(?x)).

I think we need to be consistent because all it requires is:


An alternative is that GROUP_CONCAT uses CONCAT (including lang tag 
handling) and we can make it dependent on what we decide for CONCAT.


Received on Monday, 29 November 2010 21:41:35 UTC