You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@jena.apache.org by "Andy Seaborne (JIRA)" <ji...@apache.org> on 2012/04/27 13:35:51 UTC
[jira] [Resolved] (JENA-238) construct query where clause does not
seem to work as advertised
[ https://issues.apache.org/jira/browse/JENA-238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Seaborne resolved JENA-238.
--------------------------------
Resolution: Not A Problem
Assignee: Andy Seaborne
The CONSTRUCT WHERE short form only applies to basic graph patterns.
> 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: ARQ 2.9.0, LARQ 1.0.0
> Environment: Windows Vista 32-bit
> Reporter: Andrew Crapo
> Assignee: Andy Seaborne
>
> 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.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira