> (I reorganised the page end of Friday - didn't remove any text intentionally but I put the two options in separate sections. I generally called it NOT EXISTS.) Thanks! > To make progress on this, let's take it in two steps. > > 1/ Decide on UNSAID vs Set-MINUS, that is resolve to explore one design in depth > > 2/ Then take as a sub-issue of NOT EXISTS as to have a graph operator and/or a FILTER expression. > > I propose we adopt the UNSAID/NOT EXISTS design. The Set-MINUS seems to have no advantages because it is equivalent to an NOT EXISTS form, but requires each side to be a set, which would need to be worked through the rest of the language. Full ack. > On the second part, I found it to be no more work as the graph operator is the introduction of algebra-level filter. I also agree. The only thing I do not like about this is full SPARQL syntax in FILTERs. It makes thinks hard to read. BUt I guess that is acceptable. Best regards Simon -- Simon Schenk | ISWeb | Uni Koblenz http://isweb.uni-koblenz.de http://www.uni-koblenz.de/~sschenk Five sentences policy: http://five.sentenc.es/Received on Monday, 29 June 2009 14:50:51 UTC
This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 17:00:55 UTC