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https://issues.apache.org/jira/browse/SPARK-9427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14699072#comment-14699072
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Yu Ishikawa commented on SPARK-9427:
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[~shivaram] and [~davies]
How do we convert R {{integer}} type to Scala {{Long}} type?
I have trouble with implementing {{rand(seed: Long)}} function in SparkR. R
{{integer}} type is recognized as Scala {{Int}} and R {{numeric}} type is
recognized as Scala {{Double}} type. So I wonder how I should deal with 64 bit
integer on R. I think we should add {{rand(seed: Int)}} into spark.sql on
Scala. What do you think?
Plus, I guess PySpark {{rand}} doesn't work on Python 2.x on the same reason.
Because {{int}} on Python 2.x is recognized as Scala {{Integer}} type.
> Add expression functions in SparkR
> ----------------------------------
>
> Key: SPARK-9427
> URL: https://issues.apache.org/jira/browse/SPARK-9427
> Project: Spark
> Issue Type: New Feature
> Components: SparkR
> Reporter: Yu Ishikawa
>
> The list of functions to add is based on SQL's functions. And it would be
> better to add them in one shot PR.
> https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/functions.scala
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