- From: Andy Seaborne <andy.seaborne@talis.com>
- Date: Sun, 15 Nov 2009 16:01:18 +0000
- To: Steve Harris <steve.harris@garlik.com>
- CC: "public-rdf-dawg@w3.org Group" <public-rdf-dawg@w3.org>
On 15/11/2009 09:51, Steve Harris wrote: > On 14 Nov 2009, at 20:07, Andy Seaborne wrote: > >> What about TRY ? >> >> TRY(xsd:integer(?x), 0) > > Try is a bit too much like Try/Catch. Seems fine to me. > >> > What happens if all the terms are unbound? An error? >> >> I think it has to be an error and XXX(expression) without a default >> value is a no-op. > > It's NULL in SQL. That makes most sense I think. So we agree? There is no NULL in SPARQL. unbound, as a value is an error. Andy > > - Steve >
Received on Sunday, 15 November 2009 16:01:21 UTC