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From "Aihua Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13251) hive can't read the decimal in AVRO file generated from previous version
Date Wed, 09 Mar 2016 22:34:40 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15188222#comment-15188222
] 

Aihua Xu commented on HIVE-13251:
---------------------------------

[~jarcec] FYI. Seems we need to handle such backward compatibility although the file format/schema
is incorrect to avro since some customers generated such files and see such issues after upgrading.


> hive can't read the decimal in AVRO file generated from previous version
> ------------------------------------------------------------------------
>
>                 Key: HIVE-13251
>                 URL: https://issues.apache.org/jira/browse/HIVE-13251
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 2.1.0
>            Reporter: Aihua Xu
>            Assignee: Aihua Xu
>
> HIVE-7174 makes the avro schema change to match avro definition, while it breaks the
compatibility if the file is generated from the previous Hive. We should allow to read old
file format "precision" : "4", "scale": "8", but write in the new format.



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