Re: Aggregate extensibility

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).

 Andy

Received on Tuesday, 30 March 2010 15:52:46 UTC