Re: SAMPLE aggregate function

Ah yes

What about

SELECT (SAMPLE(?a) as ?A) (SAMPLE(?b) as ?B)
{
  { BIND(1 as ?a) }
  UNION
 { BIND(2 as ?b)}
}

then 1, 2 looks like an attractive answer

Jeremy 


On Jul 7, 2014, at 3:49 PM, james anderson <james@dydra.com> wrote:

> good morning;
> 
> On 8 Jul 2014, at 00:27, Jeremy J Carroll <jjc@syapse.com> wrote:
> 
>> 
>> 
>> I was thinking about SAMPLE and feel that there is a bug with the spec because it allows
>> 
>> 
>> A=1 B=2
>> 
>> as an answer from
>> 
>> SELECT (SAMPLE(?a) as ?A) (SAMPLE(?b) as ?B)
>> {
>>   { BIND(1 as ?a) BIND(1 as ?b)}
>>   UNION
>>  { BIND(2 as ?a) BIND(2 as ?b)}
>> }
>> 
>> 
>> I think the principal of least surprise would suggest that a single select should use the same solution to pick out the sample values, giving either 1,1 or 2,2 as possible solutions here.
> 
> what would be the consequence of a solution in which one of the variables was not bound?
> 
>> 
>> Jeremy
>> 
>> 
>> 
> 
> ---
> james anderson | james@dydra.com | http://dydra.com
> 
> 
> 
> 
>