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Posted to dev@hive.apache.org by "Carl Steinbach (Updated) (JIRA)" <ji...@apache.org> on 2011/12/08 06:39:39 UTC

[jira] [Updated] (HIVE-2322) Add ColumnarSerDe to the list of native SerDes

     [ https://issues.apache.org/jira/browse/HIVE-2322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carl Steinbach updated HIVE-2322:
---------------------------------

    Fix Version/s: 0.8.0
    
> Add ColumnarSerDe to the list of native SerDes
> ----------------------------------------------
>
>                 Key: HIVE-2322
>                 URL: https://issues.apache.org/jira/browse/HIVE-2322
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore, Serializers/Deserializers
>            Reporter: Sohan Jain
>            Assignee: Sohan Jain
>             Fix For: 0.8.0
>
>         Attachments: HIVE-2322.1.patch, HIVE-2322.2.patch, HIVE-2322.3.patch, HIVE-2322.4.patch, HIVE-2322.5.patch
>
>
> We store metadata about ColumnarSerDes in the metastore, so it should be considered a native SerDe.  Then, column information can be retrieved from the metastore instead of from deserialization.
> Currently, for non-native SerDes, column comments are only shown as "from deserializer".  Adding ColumnarSerDe to the list of native SerDes will persist column comments.  See HIVE-2171 for persisting the column comments of custom SerDes.

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