Github user cloud-fan commented on the issue:
https://github.com/apache/spark/pull/13778
From another point of view, is it necessary to propagate the python UDF
from python side to jvm side? IIUC the serialization of python UDT happens at
python side, and the jvm side can only see binary for python data, there is
nothing we can do at java side. Correct me if I am wrong, thanks.
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