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https://issues.apache.org/jira/browse/HIVE-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13072635#comment-13072635
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John Sichi commented on HIVE-2171:
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I'll take a look.
> Allow custom serdes to set field comments
> -----------------------------------------
>
> Key: HIVE-2171
> URL: https://issues.apache.org/jira/browse/HIVE-2171
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 0.7.0
> Reporter: Jakob Homan
> Assignee: Jakob Homan
> Attachments: HIVE-2171.patch
>
>
> Currently, while serde implementations can set a field's name, they can't set
> its comment. These are set in the metastore utils to {{(from
> deserializer)}}. For those serdes that can provide meaningful comments for a
> field, they should be propagated to the table description. These
> serde-provided comments could be prepended to "(from deserializer)" if others
> feel that's a meaningful distinction. This change involves updating
> {{StructField}} to support a (possibly null) comment field and then
> propagating this change out to the myriad places {{StructField}} is thrown
> around.
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