Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/19499
Good. The failures are expected ones and handled by #19882 .
- org.apache.spark.sql.hive.orc.OrcQuerySuite.SPARK-8501: Avoids discovery
schema from empty ORC files
- The test case expects a failure, but it's fixed in new OrcFileFormat.
- org.apache.spark.sql.hive.orc.OrcSourceSuite.SPARK-19459/SPARK-18220:
read char/varchar column written by Hive
- This is VARCHAR issue.
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