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https://issues.apache.org/jira/browse/JENA-1935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17153532#comment-17153532
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ASF subversion and git services commented on JENA-1935:
-------------------------------------------------------
Commit 2e6ec6a3c7ec344fae7fab97ed45105eba725529 in jena's branch
refs/heads/master from Andy Seaborne
[ https://gitbox.apache.org/repos/asf?p=jena.git;h=2e6ec6a ]
JENA-1935: No prologue for subquery
> Query::cloneQuery produces invalid syntax
> -----------------------------------------
>
> Key: JENA-1935
> URL: https://issues.apache.org/jira/browse/JENA-1935
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ
> Affects Versions: Jena 3.16.0
> Reporter: Martynas Jusevičius
> Assignee: Andy Seaborne
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> {code:java}
> QueryFactory.create("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> ASK { SELECT * { ?class a rdfs:Class . } }").cloneQuery().toString()
> {code}
> produces
> {noformat}
> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> ASK
> WHERE
> { PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
>
> SELECT *
> WHERE
> { ?class a rdfs:Class }
> }
> {noformat}
> which is invalid SPARQL syntax (note the second {{PREFIX}}).
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