[HIVE-4653] Favor serde2.io Writable classes over hadoop.io ones

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: vectorization-branch
• Component/s: Query Processor
• Assignee: Remus Rusanu
• Reporter: Remus Rusanu
• Created: 04/Jun/13 09:52
• Updated: 06/Jun/13 08:34
• Resolved: 06/Jun/13 08:34

Description

"The Writables are originally from org.apache.hadoop.io. I tend to assume that they have been re-defined in hive if the original implementation was not considered good enough.
However, I don't understand why some are defined twice in hive itself. I noticed that ByteWritable in o.a.h.hive.ql.exec is not being used anywhere. The ByteWritable in serde2.io is being referred to in bunch of places. Therefore, I would suggest to just use the one in serde2.io."