Re: GROUP BY [was: Comments list comments]

Dan Connolly wrote:
> On Mon, 2005-03-21 at 16:04 +0000, Seaborne, Andy wrote:
>>Matters arising from the comments list:
> [...]
>>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.


Counting would need a lot more consideration before inclusion.

Suggest we get a use case then add to postponed issues unless the use case is 
very compelling.


>> Andy

Received on Monday, 21 March 2005 17:07:53 UTC