JingsongLi commented on issue #10022: [FLINK-14135][hive][orc] Introduce orc ColumnarRow reader for hive connector URL: https://github.com/apache/flink/pull/10022#issuecomment-553751930 > Add documentation to inform users when to use `FlinkOrcReader` v.s. `HiveRecordReader`? I think we can add some comments on config option. We don't want users to see this configuration unless something goes wrong here. Because I can't guarantee that `HiveVectorizedOrcSplitReader` can replace `HiveMapredSplitReader` in any scenario. If there are any corner cases, users can fallback.
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