[jira] [Commented] (FLINK-2576) Add outer joins to API and Optimizer

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-2576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14941053#comment-14941053 ] 

ASF GitHub Bot commented on FLINK-2576:
---------------------------------------

Github user jkovacs commented on the pull request:

    https://github.com/apache/flink/pull/1138#issuecomment-144997953
  
    Thanks @fhueske and @StephanEwen for the comprehensive review and additional details on Flink internals!, I agree that we should rather wait to implement the projection join correctly at a later point.
    I'll append a few commits addressing the review comments and squash them later into the appropriate commits when you feel it's ready to merge.


> Add outer joins to API and Optimizer
> ------------------------------------
>
>                 Key: FLINK-2576
>                 URL: https://issues.apache.org/jira/browse/FLINK-2576
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Java API, Optimizer, Scala API
>            Reporter: Ricky Pogalz
>            Priority: Minor
>             Fix For: pre-apache
>
>
> Add left/right/full outer join methods to the DataSet APIs (Java, Scala) and to the optimizer of Flink.
> Initially, the execution strategy should be a sort-merge outer join (FLINK-2105) but can later be extended to hash joins for left/right outer joins.



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