- From: Polleres, Axel <axel.polleres@deri.org>
- Date: Tue, 31 Aug 2010 13:10:08 +0100
- To: <andy.seaborne@epimorphics.com>
- Cc: <public-rdf-dawg@w3.org>
That looks fine to me (and seems no problem to copy/adapt the agg test cases accordingly) Will wait for what you guys decide in today's call!
Axel
----- Original Message -----
From: Andy Seaborne <andy.seaborne@epimorphics.com>
To: Polleres, Axel
Cc: SPARQL Working Group <public-rdf-dawg@w3.org>
Sent: Tue Aug 31 11:51:24 2010
Subject: Group by expressions
Agenda for 2010-08-31:
> Projecting expressions used for grouping - see recent discussion of
ISSUE-41 on the mailing list
Input: The current grammar has:
[20] GroupCondition ::=
( BuiltInCall
| FunctionCall
| '(' Expression ( 'AS' Var )? ')'
| Var )
and the name introduced can then be used in SELECT expressions and HAVING.
SELECT (?o3+128 AS ?o4)
{
....
}
GROUP BY (?o1+?o2 AS ?o3)
HAVING ( ?o3 > 45)
Currently, the name is optional, reflecting that it may not be used
again if it's not mentioned in HAVING or SELECT. This avoids needing to
require sub-expression determination.
Andy
Received on Tuesday, 31 August 2010 12:10:46 UTC