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https://issues.apache.org/jira/browse/HIVE-2059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carl Steinbach updated HIVE-2059:
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Attachment: HIVE-2059.1.patch.txt
> Add datanucleus.identifierFactory property HiveConf to avoid unintentional
> MetaStore Schema corruption
> ------------------------------------------------------------------------------------------------------
>
> Key: HIVE-2059
> URL: https://issues.apache.org/jira/browse/HIVE-2059
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 0.7.0
> Reporter: Carl Steinbach
> Assignee: Carl Steinbach
> Fix For: 0.7.0
>
> Attachments: HIVE-2059.1.patch.txt
>
>
> Hive 0.6.0 we upgraded the version of DataNucleus from 1.0 to 2.0, which
> changed some of the defaults for how field names get mapped to datastore
> identifiers. This was problem was resolved in HIVE-1435 by setting
> datanucleus.identifierFactory=datanucleus in hive-default.xml
> However, this property definition was not added to HiveConf. This can result
> in schema corruption if the user upgrades from Hive 0.5.0 to 0.6.0 or 0.7.0
> and retains the Hive 0.5.0 version hive-default.xml on their classpath.
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