[jira] [Resolved] (SPARK-27787) Eliminate uncessary job to compute SSreg

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-27787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-27787.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 3.1.0

Issue resolved by pull request 24656
[https://github.com/apache/spark/pull/24656]

> Eliminate uncessary job to compute SSreg
> ----------------------------------------
>
>                 Key: SPARK-27787
>                 URL: https://issues.apache.org/jira/browse/SPARK-27787
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>    Affects Versions: 3.0.0
>            Reporter: zhengruifeng
>            Assignee: zhengruifeng
>            Priority: Minor
>             Fix For: 3.1.0
>
>
> in {{RegressionMetrics}}, a job is needed to compute SSreg
> However, we only need to agg summary of column prediction, then SSreg can be computed directly based on the summary.



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