Github user zero323 commented on the pull request:
https://github.com/apache/spark/pull/9099#issuecomment-148885059
It is not related to this PR or, as far as I can tell, to `createDataFrame`
whatsoever. Looks more like an issue with type mapping. Right now I see two
main category of problems:
- mapping assumes homogeneous types on R side which affects both lists and
environments
- type checking is done after data is converted to row-wise representation,
when column type is lost. It affects array-like structures (array, matrix).
I'll submit JIRA for these.
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