[jira] [Commented] (JENA-723) TopN optimization -- QueryIterTopN behaves differently with java8

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JENA-723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039182#comment-14039182 ] 

ASF subversion and git services commented on JENA-723:
------------------------------------------------------

Commit 1604241 from [~andy.seaborne] in branch 'jena/trunk'
[ https://svn.apache.org/r1604241 ]

JENA-723 : Processing distinct must be done first

> TopN optimization -- QueryIterTopN behaves differently with java8
> -----------------------------------------------------------------
>
>                 Key: JENA-723
>                 URL: https://issues.apache.org/jira/browse/JENA-723
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: ARQ
>    Affects Versions: Jena 2.11.2
>         Environment: java 8
>            Reporter: Andy Seaborne
>            Assignee: Andy Seaborne
>
> Behaviour has changed; testing/ARQ/Optimization/opt-top-10 illustrates this.
> TopN was buggy but happened to work with Java7 and before.  Something in Java8 behaves differently (PriorityQuery? some sort of hash orderingso data is presented differently?)



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