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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6094) Implement stream-stream proctime non-window inner join
Date Thu, 10 Aug 2017 14:34:06 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16121698#comment-16121698
] 

ASF GitHub Bot commented on FLINK-6094:
---------------------------------------

Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4471#discussion_r132229636
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/util/UpdatingPlanChecker.scala
---
    @@ -56,17 +59,20 @@ object UpdatingPlanChecker {
       }
     
       /** Identifies unique key fields in the output of a RelNode. */
    -  private class UniqueKeyExtractor extends RelVisitor {
    -
    -    var keys: Option[Array[String]] = None
    +  private class UniqueKeyExtractor {
     
    -    override def visit(node: RelNode, ordinal: Int, parent: RelNode): Unit = {
    +    // visit() function will return a tuple, the first element of tuple is the key, the
second is
    --- End diff --
    
    `the first element is the name of a key field, the second is a group name that is shared
by all equivalent key fields.`


> Implement stream-stream proctime non-window  inner join
> -------------------------------------------------------
>
>                 Key: FLINK-6094
>                 URL: https://issues.apache.org/jira/browse/FLINK-6094
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API & SQL
>            Reporter: Shaoxuan Wang
>            Assignee: Hequn Cheng
>
> This includes:
> 1.Implement stream-stream proctime non-window  inner join
> 2.Implement the retract process logic for join



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