- From: Jonas Liljegren <jonas@rit.se>
- Date: 28 Nov 2000 12:00:18 +0100
- To: Sergey Melnik <melnik@db.stanford.edu>
- Cc: RDF Interest Group <www-rdf-interest@w3.org>
Sergey Melnik <melnik@db.stanford.edu> writes: > Jonas Liljegren wrote: > > > select * from arc where subj in ( select id from arc where pred=? and > > subj=? and obj=?) > > Well, Jonas, this approach is practically equivalent with the one that I > have in mind (except that statement IDs are not unique). > > Notice that now you have another trouble: you have to rematerialize the > quad statements if you want to be spec compliant. What about a query > like > > select * from arc where pred = rdf:predicate > or > select * from arc where pred = rdf:type and obj = rdf:Statement > > ? I don't understand the problem with this. -- / Jonas Liljegren The Wraf project http://www.uxn.nu/wraf/ Sponsored by http://www.rit.se/
Received on Tuesday, 28 November 2000 05:57:14 UTC