On 15/10/14 04:18, Ian Emmons wrote:
At [1], the ARQ documentation describes how to create your own filter and
property functions and have those dynamically loaded. That page also says, in
the first paragraph, “ARQ also has syntactic extensions for GROUP BY ... these
are described elsewhere.” Where are they described? The location isn’t linked
from that sentence, and I couldn’t find it.
What I am looking for is this: Is there a mechanism, similar to that for
filter and property functions, to define and dynamically load my own aggregate
functions in ARQ?
Thanks,
Ian
[1] https://jena.apache.org/documentation/query/extension.html
Ian,
It is possible but hard to add aggregates to ARQ. What aggregates were
you wanting?
That text is pre-SPARQL 1.1 and refers to the fact ARQ had GROUP BY and
sub-SELECT at all. I've removed it as it is out of date.
Andy
