UNSAID drafted and mapped to SQL Eric Prud'hommeaux (Friday, 10 December) ... section 7 More Pattern Matching – Unsaid
Re: UNSAID drafted and mapped to SQL Pat Hayes 18 Dec 2004:
Let me strongly suggest that we do not include UNSAID in SPARQL. ...
Note a relevant objective:
It must be possible to query for the non-existence of one or more triples or triple patterns in the queried graph.
objective 4.3 Non-existent Triples accepted 2004-07-15