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From Sergio Peña (JIRA) <j...@apache.org>
Subject [jira] [Commented] (HIVE-9462) HIVE-8577 - breaks type evolution
Date Mon, 26 Jan 2015 22:58:35 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292569#comment-14292569
] 

Sergio Peña commented on HIVE-9462:
-----------------------------------

Hi [~brocknoland]

The patch looks good. I tested it in my machine and worked fine.
The only thing I could not understand is what happened with the 'currentFileSchema' when we
get the UnresolvedUnionException. Is it going to be null?


> 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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