Github user BryanCutler commented on the issue: https://github.com/apache/spark/pull/20725 This is working now, and BinaryType support is conditional on pyarrow 0.10.0 or higher being used. @HyukjinKwon @cloud-fan what are your thoughts on getting this in for Spark 2.4? I think it would be very useful to have since images in Spark use the BInaryType and it will be good to have when integrating Spark with DL frameworks.
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