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From "Hyukjin Kwon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-26924) Document Arrow optimization and vectorized R APIs
Date Thu, 02 May 2019 12:45:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-26924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hyukjin Kwon updated SPARK-26924:
---------------------------------
    Description: 
Arrow optimization was added but Arrow is not available on CRAN.

So, it had to add some hacks to avoid CRAN check in SparkR side. For example, see 

https://github.com/apache/spark/search?q=requireNamespace1&unscoped_q=requireNamespace1

These should be removed to properly check CRAN in SparkR

See also ARROW-3204


  was:We should update SparkR guide documentation, and some related documents, comments like
in {{SQLConf.scala}} when most of tasks are finished.


> Document Arrow optimization and vectorized R APIs
> -------------------------------------------------
>
>                 Key: SPARK-26924
>                 URL: https://issues.apache.org/jira/browse/SPARK-26924
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SparkR, SQL
>    Affects Versions: 3.0.0
>            Reporter: Hyukjin Kwon
>            Priority: Major
>
> Arrow optimization was added but Arrow is not available on CRAN.
> So, it had to add some hacks to avoid CRAN check in SparkR side. For example, see 
> https://github.com/apache/spark/search?q=requireNamespace1&unscoped_q=requireNamespace1
> These should be removed to properly check CRAN in SparkR
> See also ARROW-3204



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