Re: Aggregate extensibility

On 2010-03-30, at 16:52, Andy Seaborne wrote:
> 
> On 30/03/2010 3:26 PM, Ivan Mikhailov wrote:
>> Hello Axel,
> ...
> 
>>> Would we also allow aggregates with arityy different to 1 (like common in functions) e.g. agg-uri(?X ?Y)
>> 
>> That's absolutely required for statistical calculations of all sorts,
>> from regression to likelihood detection.
> >
> > Best Regards,
> >
> > Ivan.
> 
> At F2F3, we decided to not restrict the arity to 1 for custom aggregates (and they can have parameters to the aggregator as well as arguments to aggregate over).

We did? It sounds plausible, but I don't actually remember that. Is it a parser issue?

- Steve

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Received on Tuesday, 30 March 2010 17:00:19 UTC