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Posted to issues@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2015/09/17 15:45:04 UTC

[jira] [Closed] (FLINK-2689) Reusing null object for joins with SolutionSet

     [ https://issues.apache.org/jira/browse/FLINK-2689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske closed FLINK-2689.
--------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 0.9.2)
                   0.9

Fixed for 0.10 with 988a04eb486d286e071f4a68aa22c64a2cd4ed8e
Fixed for 0.9 with 43e23ba5efb509f08882df6c2a5d774840bf87a5

> 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: 0.9, 0.10
>
>
> 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.



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