- From: Dan Connolly <connolly@w3.org>
- Date: Mon, 21 Mar 2005 10:53:57 -0600
- To: "Seaborne, Andy" <andy.seaborne@hp.com>
- Cc: RDF Data Access Working Group <public-rdf-dawg@w3.org>
On Mon, 2005-03-21 at 16:04 +0000, Seaborne, Andy wrote: > Matters arising from the comments list: [...] > > 2/ GROUP BY > > Request for SQL-like GROUP BY in addition to ORDER BY. GROUP BY allows the > application of aggrgeate functions which is more problematic than ORDER BY (that > only chnages the order of solutions, it does not remove, add or change > solutions). It's use with aggregation functions like sum(), count() that is > tricky because of defining what is being counted (names or individuals). > > COUNT() can lead to a significant decrease in network bandwidth but I have not > seen a proposal as to what it means for RDF query that explciitly addresses the > closed world assumptions. > > > Andy -- Dan Connolly, W3C http://www.w3.org/People/Connolly/ D3C2 887B 0F92 6005 C541 0875 0F91 96DE 6E52 C29E
Received on Monday, 21 March 2005 17:00:05 UTC