flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2689) Reusing null object for joins with SolutionSet
Date Thu, 17 Sep 2015 08:27:46 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14791782#comment-14791782
] 

ASF GitHub Bot commented on FLINK-2689:
---------------------------------------

Github user mxm commented on the pull request:

    https://github.com/apache/flink/pull/1136#issuecomment-141003929
  
    LGTM


> Reusing null object for joins with SolutionSet
> ----------------------------------------------
>
>                 Key: FLINK-2689
>                 URL: https://issues.apache.org/jira/browse/FLINK-2689
>             Project: Flink
>          Issue Type: Bug
>          Components: Local Runtime
>    Affects Versions: 0.9, 0.10
>            Reporter: Fabian Hueske
>            Assignee: Fabian Hueske
>             Fix For: 0.10, 0.9.2
>
>
> Joins and CoGroups with a solution set have outer join semantics because a certain key
might not have been inserted into the solution set yet. When probing a non-existing key, the
CompactingHashTable will return null.
> In object reuse mode, this null value is used as reuse object when the next key is probed.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message