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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2017/10/05 17:03:02 UTC

[jira] [Resolved] (SPARK-22179) percentile_approx should choose the first element if it already reaches the percentage

     [ https://issues.apache.org/jira/browse/SPARK-22179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-22179.
-------------------------------
    Resolution: Duplicate

OK I think this effectively taken over by the new issue?

> percentile_approx should choose the first element if it already reaches the percentage
> --------------------------------------------------------------------------------------
>
>                 Key: SPARK-22179
>                 URL: https://issues.apache.org/jira/browse/SPARK-22179
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Zhenhua Wang
>
> percentile_approx should choose the first element if it already reaches the percentage.
> For example, given input data 1 to 10, if a user queries 10% (or even less) percentile, it should return 1 (instead of 2), because the first value 1 already reaches 10%. Currently it returns a wrong answer: 2.



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