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From "Brock Noland (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9462) HIVE-8577 - breaks type evolution
Date Mon, 26 Jan 2015 23:09:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292591#comment-14292591
] 

Brock Noland commented on HIVE-9462:
------------------------------------

Good point, looks like that could cause an issue if the type is a {{char}}, {{varchar}}, or
{{decimal}} where file schema is used in {{deserializePrimitive}}.

> 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, 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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