Andrew Crapo created JENA-238:
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Summary: construct query where clause does not seem to work as
advertised
Key: JENA-238
URL: https://issues.apache.org/jira/browse/JENA-238
Project: Apache Jena
Issue Type: Bug
Components: ARQ, LARQ
Affects Versions: LARQ 1.0.0, ARQ 2.9.0
Environment: Windows Vista 32-bit
Reporter: Andrew Crapo
Here are two queries:
select ?o ?o1 ?o2 where {<http://sadl.org/AssetManagement/ALoco#LocoA>
<http://com.ge.research.sadl/locomotive#poweredBy> ?o .
OPTIONAL {?o
<http://com.ge.research.sadl/locomotive#operatingTemperature> ?o1} .
OPTIONAL {?o
<http://com.ge.research.sadl/locomotive#desiredOperatingTemperature> ?o2}}
construct where {<http://sadl.org/AssetManagement/ALoco#LocoA>
<http://com.ge.research.sadl/locomotive#poweredBy> ?o .
OPTIONAL {?o
<http://com.ge.research.sadl/locomotive#operatingTemperature> ?o1} .
OPTIONAL {?o
<http://com.ge.research.sadl/locomotive#desiredOperatingTemperature> ?o2}}
My understanding is that the where clause for construct should handle OPTIONAL.
The first query works fine, the second query has a parse error. The same is
true if I try to use a construct query with a UNION in it--it will not parse.
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