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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2998) Support range partition comparison for multi input nodes.
Date Wed, 30 Mar 2016 07:59:25 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15217621#comment-15217621

ASF GitHub Bot commented on FLINK-2998:

Github user fhueske commented on the pull request:

    I'm currently on vacation. Will have a closer look when I'm back in about a week.
    I am not sure that we need to touch the Join and CoGroup operators to pass the distributions.
The optimizer is able to get this from the GlobalProperties to decide whether the partitionings
are valid and equivalent.

> Support range partition comparison for multi input nodes.
> ---------------------------------------------------------
>                 Key: FLINK-2998
>                 URL: https://issues.apache.org/jira/browse/FLINK-2998
>             Project: Flink
>          Issue Type: New Feature
>          Components: Optimizer
>            Reporter: Chengxiang Li
>            Priority: Minor
> The optimizer may have potential opportunity to optimize the DAG while it found two input
range partition are equivalent, we does not support the comparison yet.

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