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https://issues.apache.org/jira/browse/JENA-2139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17395181#comment-17395181
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ASF subversion and git services commented on JENA-2139:
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Commit f9d2d4794fbf81fd9ea82ec562cfa4ae451cb12d in jena's branch
refs/heads/main from Andy Seaborne
[ https://gitbox.apache.org/repos/asf?p=jena.git;h=f9d2d47 ]
Merge pull request #1042 from afs/jena2139-minus
JENA-2139: Delay building index until execution starts
> Query involving MINUS may not see query timeout.
> ------------------------------------------------
>
> Key: JENA-2139
> URL: https://issues.apache.org/jira/browse/JENA-2139
> Project: Apache Jena
> Issue Type: Bug
> Affects Versions: Jena 4.1.0
> Reporter: Andy Seaborne
> Assignee: Andy Seaborne
> Priority: Major
>
> {{QueryIterMinus}} calculates the right table in its constructor, that is,
> while the query iterator tree is being built.
> If this is happening during {{getPlan().iterator()}} in {{QueryExecuteBase}}
> (Jena 4.1.0) (or {{QueryExecDataset}} for the reorganised code) then the top
> level iterator isn't set until the entire iterator tree has been built, and
> so can't propagate the cancel.
> [Report: Cristóbal Miranda on
> users@|https://lists.apache.org/thread.html/r4281f206d833db3010cd7a9c68402bc20cccde2eba8a907fc489179b%40%3Cusers.jena.apache.org%3E].
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