[SPARK-23452] Extend test coverage to all ORC readers

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Incomplete
• Affects Version/s: 2.3.1
• Component/s: SQL, Tests
• Labels: bulk-closed
• Assignee: Dongjoon Hyun
• Reporter: Dongjoon Hyun
• Created: 16/Feb/18 19:38
• Updated: 08/Oct/19 05:44
• Resolved: 08/Oct/19 05:44

Description

We have five ORC readers. We had better have a test coverage for all ORC readers.

• Hive Serde
• Hive OrcFileFormat
• Apache ORC Vectorized Wrapper
• Apache ORC Vectorized Copy
• Apache ORC MR

Issue Links

• blocks: SPARK-20901 Feature parity for ORC with Parquet
• links to: [Github] Pull Request #20649 (xysun)