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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2015/04/27 02:43:38 UTC

[jira] [Commented] (SPARK-7157) Add sampleByKey, sampleByKeyExact methods to DataFrame

    [ https://issues.apache.org/jira/browse/SPARK-7157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14513360#comment-14513360 ] 

Reynold Xin commented on SPARK-7157:
------------------------------------

Since there is no key in DataFrame, either "sampleBy" or "stratifiedSample". We need to decide if we want to allow composite expression, or just a single expression.



> Add sampleByKey, sampleByKeyExact methods to DataFrame
> ------------------------------------------------------
>
>                 Key: SPARK-7157
>                 URL: https://issues.apache.org/jira/browse/SPARK-7157
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Joseph K. Bradley
>            Priority: Minor
>




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