[jira] [Resolved] (SPARK-19314) Do not allow sort before aggregation in Structured Streaming plan

["Tathagata Das (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-19314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tathagata Das resolved SPARK-19314.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0
                   2.0.3
                   2.1.1

Issue resolved by pull request 16662
[https://github.com/apache/spark/pull/16662]

> Do not allow sort before aggregation in Structured Streaming plan
> -----------------------------------------------------------------
>
>                 Key: SPARK-19314
>                 URL: https://issues.apache.org/jira/browse/SPARK-19314
>             Project: Spark
>          Issue Type: Bug
>          Components: Structured Streaming
>    Affects Versions: 2.0.2, 2.1.0
>            Reporter: Tathagata Das
>            Assignee: Tathagata Das
>            Priority: Blocker
>             Fix For: 2.1.1, 2.0.3, 3.0.0
>
>
> Sort in a streaming plan should be allowed only after a aggregation in complete mode. Currently it is incorrectly allowed when present anywhere in the plan. It gives unpredictable potentially incorrect results.



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