Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/22888
Then, you can convert the type into double or floats in Spark DataFrame.
This is super easily able to work around at Pandas DataFrame or Spark's
DataFrame. I don't think we should add this flag.
BTW, the same feature should be added to when Arrow optimization is enabled
as well.
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