On 27/02/14 17:49, Heidi McClure wrote:
After experimenting with the spatial constraints (like withinCircle), I've
noticed that I must have the spatial constraint FIRST in my set of constraints.
Is this by design?
Heidi,
The order of the execution greatly affects the speed of a query but it
should not the answers.
Which version are you running? It looks like JENA-549 which is fixed.
Andy
https://issues.apache.org/jira/browse/JENA-549
If I do this query it works (withinCircle is first in my set of constraints):
SELECT DISTINCT ?Event1 ?Event1_inCountry WHERE {
?Event1 <http://jena.apache.org/spatial#withinCircle> (38.8633 -104.7919 700
'miles') .
?Event1 <http://issinc.com/test#inCountry> ?Event1_inCountry .
?Event1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://issinc.com/test#Event> .
}
If I move the spatial constraint further down the list, it fails:
SELECT DISTINCT ?Event1 ?Event1_inCountry WHERE {
?Event1 <http://issinc.com/test#inCountry> ?Event1_inCountry .
?Event1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://issinc.com/test#Event> .
?Event1 <http://jena.apache.org/spatial#withinCircle> (38.8633 -104.7919 700
'miles') .
}
warning I see is:
10:04:58 WARN Fuseki :: [68] RC = 500 : Attempt to reassign '?Event1' from
'<http://issinc.com/test#event_901112280020>' to
'<http://issinc.com/test#event_901112280020>'
thanks,
-heidi
