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https://issues.apache.org/jira/browse/HIVE-5380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895544#comment-13895544
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Lefty Leverenz commented on HIVE-5380:
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Does this need to be mentioned in the wiki?

If so, here are some possible locations:

* [Developer Guide:  Object Inspector 
|https://cwiki.apache.org/confluence/display/Hive/DeveloperGuide#DeveloperGuide-ObjectInspector]
 -- by the way, would someone please explain what the exclamation points mean 
in this section and the previous one (Hive SerDe)?
* [Developer Guide:  how to add a new SerDe 
|https://cwiki.apache.org/confluence/display/Hive/DeveloperGuide#DeveloperGuide-SerDe-howtoaddanewSerDe]
* [Hive Plugins |https://cwiki.apache.org/confluence/display/Hive/HivePlugins]
* [SerDe:  Additional Notes 
|https://cwiki.apache.org/confluence/display/Hive/SerDe#SerDe-Additionalnotes]
* [Language Manual:  Create Table:  Row Format, Storage Format, and SerDe 
|https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-RowFormat,StorageFormat,andSerDe]

> Non-default OI constructors should be supported for backwards compatibility
> ---------------------------------------------------------------------------
>
>                 Key: HIVE-5380
>                 URL: https://issues.apache.org/jira/browse/HIVE-5380
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.13.0
>            Reporter: Brock Noland
>            Assignee: Brock Noland
>            Priority: Minor
>             Fix For: 0.13.0
>
>         Attachments: HIVE-5380.patch, HIVE-5380.patch, HIVE-5380.patch
>
>
> In HIVE-5263 we started serializing OI's when cloning the plan. This was a 
> great boost in speed for many queries. In the future we'd like to stop 
> copying the OI's, perhaps in HIVE-4396.
> Until then Custom Serdes will not work on trunk. This is a fix to allow 
> custom serdes such as the Hive JSon Serde work until we address the fact we 
> don't want to have to copy the OI's. Since this is modifying the byte code, 
> we should recommend that the no-arg constructor be added.



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