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https://issues.apache.org/jira/browse/JENA-1945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17191140#comment-17191140
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ASF subversion and git services commented on JENA-1945:
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Commit fb2d8e49e38e99b0b7bc463c0c55ac73626d4043 in jena's branch
refs/heads/master from Andy Seaborne
[ https://gitbox.apache.org/repos/asf?p=jena.git;h=fb2d8e4 ]
Merge pull request #793 from afs/jena1945-deprecate
JENA-1945: Deprecate Algebra.unionDefaultGraph
> Algebra.unionDefaultGraph: OpPath not handled
> ---------------------------------------------
>
> Key: JENA-1945
> URL: https://issues.apache.org/jira/browse/JENA-1945
> Project: Apache Jena
> Issue Type: Improvement
> Components: ARQ
> Affects Versions: Jena 3.16.0
> Reporter: Claus Stadler
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
>
> {code:java}
> System.out.println(
> Algebra.unionDefaultGraph(
> Algebra.compile(
> QueryFactory.create("SELECT * { ?s <urn:p> ?o }"))));
> /* Yields correct result:
> (distinct
> (graph ??_
> (bgp (triple ?s <urn:p> ?o))))
> */
> System.out.println(
> Algebra.unionDefaultGraph(
> Algebra.compile(
> QueryFactory.create("SELECT * { ?s <urn:p1>/<urn:p2>/<urn:p3> ?o }"))));
> /* Yields incorrect result because wrapping with graph ??_ (and distinct) is
> missing:
> (path ?s (seq (seq <urn:p1> <urn:p2>) <urn:p3>) ?o)
> */
> {code}
>
> It seems
> [TransformUnionQuery.java|https://github.com/apache/jena/blob/master/jena-arq/src/main/java/org/apache/jena/sparql/algebra/TransformUnionQuery.java#L34]
> lacks the handling of (at least) OpPath
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