[jira] [Resolved] (SPARK-2331) SparkContext.emptyRDD should return RDD[T] not EmptyRDD[T]

["Andrew Or (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-2331?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Or resolved SPARK-2331.
------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

> SparkContext.emptyRDD should return RDD[T] not EmptyRDD[T]
> ----------------------------------------------------------
>
>                 Key: SPARK-2331
>                 URL: https://issues.apache.org/jira/browse/SPARK-2331
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core
>    Affects Versions: 1.0.0
>            Reporter: Ian Hummel
>            Assignee: Reynold Xin
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> The return type for SparkContext.emptyRDD is EmptyRDD[T].
> It should be RDD[T].  That means you have to add extra type annotations on code like the below (which creates a union of RDDs over some subset of paths in a folder)
> {code}
> val rdds = Seq("a", "b", "c").foldLeft[RDD[String]](sc.emptyRDD[String]) { (rdd, path) ⇒
>           rdd.union(sc.textFile(path))
>         }
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org