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Posted to issues@arrow.apache.org by "Micah Kornfield (JIRA)" <ji...@apache.org> on 2019/08/15 05:11:00 UTC

[jira] [Resolved] (ARROW-6234) [Java] ListVector hashCode() is not correct

     [ https://issues.apache.org/jira/browse/ARROW-6234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Micah Kornfield resolved ARROW-6234.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 0.15.0

Issue resolved by pull request 5082
[https://github.com/apache/arrow/pull/5082]

> [Java] ListVector hashCode() is not correct
> -------------------------------------------
>
>                 Key: ARROW-6234
>                 URL: https://issues.apache.org/jira/browse/ARROW-6234
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Java
>            Reporter: Ji Liu
>            Assignee: Ji Liu
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 0.15.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Current implement is not correct:
> {code:java}
> for (int i = start; i < end; i++) {
>   hash = 31 * vector.hashCode(i);
> }
> {code}
> Should be something like:
> {code:java}
> hash = 31 * hash + vector.hashCode(i);{code}



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