[HIVE-635] UnionOperator fails when different inputs have different ObjectInspector (but the same TypeInfo)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.3.0
• Fix Version/s: 0.4.0
• Component/s: Query Processor
• Hadoop Flags: Reviewed
• Assignee: Zheng Shao
• Reporter: Zheng Shao
• Created: 14/Jul/09 19:01
• Updated: 17/Dec/11 00:07
• Resolved: 16/Jul/09 01:54

Description

The current UnionOperator code assumes the ObjectInspectors from all parents are the same.
But in reality, they can be different, and UnionOperator needs to do conversion if necessary.