[jira] [Commented] (SPARK-6608) Make DataFrame.rdd a lazy val

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-6608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14386635#comment-14386635 ] 

Apache Spark commented on SPARK-6608:
-------------------------------------

User 'liancheng' has created a pull request for this issue:
https://github.com/apache/spark/pull/5265

> Make DataFrame.rdd a lazy val
> -----------------------------
>
>                 Key: SPARK-6608
>                 URL: https://issues.apache.org/jira/browse/SPARK-6608
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 1.3.0
>            Reporter: Cheng Lian
>            Priority: Minor
>
> Before 1.3.0, {{SchemaRDD.id}} works as a unique identifier of each {{SchemaRDD}}. In 1.3.0, unlike {{SchemaRDD}}, {{DataFrame}} is no longer an RDD, and {{DataFrame.rdd}} is actually a function which always return a new RDD instance. Making {{DataFrame.rdd}} a {{lazy val}} should bring the unique identifier back.



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