Github user squito commented on the pull request:
https://github.com/apache/spark/pull/5804#issuecomment-97957038
as noted in the [jira](https://issues.apache.org/jira/browse/SPARK-6999),
the issue is that both types get implicitly converted back -- the `RDD` is
converted to `JavaRDD` and the `Seq` is converted to a `java.util.List`. The
problem is that there is no method `createDataFrame(rowRDD: RDD[Row], columns:
Seq[String])`.
Probably a method like that should be added at some point, but the comments
on the jira make me think that is non-trivial, so no reason we shouldn't do
this now.
lgtm
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