[SPARK-14752] [SQL] fix kryo ordering serialization #13141
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Test build #58658 has finished for PR 13141 at commit
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What changes were proposed in this pull request?
When using Kryo as serializer and we will get
NullPointerExceptionexception for query withORDER BY.How was this patch tested?
I've added a new test cases to HashedRelationSuite.scala, since this issue is kind of related to Spark-14521.