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From "Wenchen Fan (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-21174) Validate sampling fraction in logical operator level
Date Fri, 23 Jun 2017 01:33:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-21174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wenchen Fan reassigned SPARK-21174:
-----------------------------------

    Assignee: Gengliang Wang

> Validate sampling fraction in logical operator level
> ----------------------------------------------------
>
>                 Key: SPARK-21174
>                 URL: https://issues.apache.org/jira/browse/SPARK-21174
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Gengliang Wang
>            Assignee: Gengliang Wang
>            Priority: Minor
>             Fix For: 2.3.0
>
>
> Currently the validation of sampling fraction in dataset is incomplete.
> As an improvement, validate sampling ratio in logical operator level:
>     1) if with replacement: ratio should be nonnegative
>     2) else: ratio should be on interval [0, 1]
> Also add test cases for the validation.



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