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https://issues.apache.org/jira/browse/SPARK-26924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16831594#comment-16831594
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Hyukjin Kwon commented on SPARK-26924:
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I am going to make this as a standalone issue. I dont' think we can fix it
within 3.0.0
> Fix CRAN hack as soon as Arrow is available on CRAN
> ---------------------------------------------------
>
> 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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