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https://issues.apache.org/jira/browse/HIVE-9462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292941#comment-14292941
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Brock Noland commented on HIVE-9462:
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Yeah unfortunately in that case I don't think we can log anything better. I am
going to put the logging in a {{LOG.isDebugEnabled()}} call thought. Will
upload in a minute.
> HIVE-8577 - breaks type evolution
> ---------------------------------
>
> Key: HIVE-9462
> URL: https://issues.apache.org/jira/browse/HIVE-9462
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Affects Versions: 0.15.0
> Reporter: Brock Noland
> Assignee: Brock Noland
> Attachments: HIVE-9462.1.patch, HIVE-9462.2.patch, type_evolution.avro
>
>
> If you write an avro field out as {{int}} and then change it's type to
> {{long}} you will get an {{UnresolvedUnionException}} due to code in
> HIVE-8577.
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