[jira] [Commented] (SPARK-6819) Support nested types in SparkR DataFrame

["Shivaram Venkataraman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-6819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14542301#comment-14542301 ] 

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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