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From sun-rui <...@git.apache.org>
Subject [GitHub] spark pull request: [SPARK-10863][SPARKR] Method coltypes() to get...
Date Wed, 28 Oct 2015 09:14:44 GMT
Github user sun-rui commented on the pull request:

    https://github.com/apache/spark/pull/8984#issuecomment-151775633
  
    A rough idea is that:
        for coltypes(), "ArrayType" -> "list", "MapType" -> "environment", "StructType"
-> "struct" (struct is a named list with "struct" class attribute)
        for coltypes<-(), throws "unsupported" error.


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