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From "Sohan Jain (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2322) Add ColumnarSerDe to the list of native SerDes
Date Wed, 03 Aug 2011 20:55:27 GMT

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

Sohan Jain updated HIVE-2322:
-----------------------------

    Attachment: HIVE-2322.2.patch

Including the updated test query results in this patch.

> 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
>         Attachments: HIVE-2322.1.patch, HIVE-2322.2.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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