Github user baishuo commented on the pull request:
https://github.com/apache/spark/pull/8664#issuecomment-139138023
hi @srowen @andrewor14 after debug, I found before we call
UTF8String.fromBytes(output.toByteArray) , we must call generator.close(),
otherwise UTF8String.fromBytes will get empty result. That why the code
yesterday didnt pass the test. But I dont know the root cause :)
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