AngersZhuuuu commented on pull request #29085:
URL: https://github.com/apache/spark/pull/29085#issuecomment-657602335


   > At least we should define how to convert catalyst values to strings, 
right? `UnsafeArray.toString` just gives you meaningless binary string.
   
   So we need to handle  string format in 
`BaseScriptTransformationWriterThread.processRowsWithoutSerde()`  to make sure 
for each data type, the final data is write 


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