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Re: ASK & GROUP BY / HAVING

From: Andy Seaborne <andy.seaborne@epimorphics.com>
Date: Sun, 28 Aug 2011 19:17:23 +0100
Message-ID: <4E5A8633.8030306@epimorphics.com>
To: public-rdf-dawg@w3.org
ASK didn't have any modifiers in SPARQL1.0 (being meaningless) - the 
design feature is merely propagated and probably because 
"SolutionModifier" isn't as accurate when including GroupClause HavingClause

	Andy

On 24/08/11 11:33, Steve Harris wrote:
> Not from my p.o.v.
>
> - Steve
>
> On 2011-08-23, at 14:31, Lee Feigenbaum wrote:
>
>> A colleague pointed out to me this morning that the SPARQL 1.1 grammar does not support solution modifiers (including GROUP BY / HAVING) with ASK queries.
>>
>> This means that you cannot use ASK to ask a boolean question involving aggregates ("are there any countries that have more than 5,000 cities?"). (Well, you can do it using a subquery, but not directly.)
>>
>> Is this purposeful?
>>
>> thanks,
>> Lee
>>
>
Received on Sunday, 28 August 2011 18:17:53 GMT

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