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https://issues.apache.org/jira/browse/SPARK-6819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14542301#comment-14542301
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Shivaram Venkataraman commented on SPARK-6819:
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Moving this to 1.5 as this is a pretty involved change
cc [~davies]
> Support nested types in SparkR DataFrame
> ----------------------------------------
>
> Key: SPARK-6819
> URL: https://issues.apache.org/jira/browse/SPARK-6819
> Project: Spark
> Issue Type: New Feature
> Components: SparkR, SQL
> Reporter: Shivaram Venkataraman
>
> ArrayType, MapType and StructureType
> We can infer the correct schema for them, but the serialization can not
> handle them well.
> From Davies in https://sparkr.atlassian.net/browse/SPARKR-230
> ArrayType could be c("ab", "ba"), we will serialize it as character. We does
> not support deserialize env in R (serialize Map[] in Scala). So all the three
> do not work.
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