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https://issues.apache.org/jira/browse/SPARK-29339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-29339.
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Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 25993
[https://github.com/apache/spark/pull/25993]
> Support Arrow 0.14 in vectoried dapply and gapply (test it in AppVeyor build)
> -----------------------------------------------------------------------------
>
> Key: SPARK-29339
> URL: https://issues.apache.org/jira/browse/SPARK-29339
> Project: Spark
> Issue Type: Improvement
> Components: SparkR
> Affects Versions: 3.0.0
> Reporter: Hyukjin Kwon
> Priority: Major
> Fix For: 3.0.0
>
>
> dapply and gapply with Arrow optimization and Arrow 0.14 seems failing:
> {code}
> > collect(dapply(df, function(rdf) { data.frame(rdf$gear + 1) },
> > structType("gear double")))
> Error in readBin(con, raw(), as.integer(dataLen), endian = "big") :
> invalid 'n' argument
> {code}
> We should fix it and also test it in AppVeyor
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