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https://issues.apache.org/jira/browse/HIVE-4654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13676529#comment-13676529
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Eric Hanson commented on HIVE-4654:
-----------------------------------
This appears related to some functional bugs. See
https://issues.apache.org/jira/browse/HIVE-4665.
> Remove unused org.apache.hadoop.hive.ql.exec Writables
> ------------------------------------------------------
>
> Key: HIVE-4654
> URL: https://issues.apache.org/jira/browse/HIVE-4654
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor
> Reporter: Remus Rusanu
> Priority: Minor
>
> 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.
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