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https://issues.apache.org/jira/browse/SPARK-17910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15594623#comment-15594623
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Jiang Xingbo commented on SPARK-17910:
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[~yhuai] Seems we don't support `ALTER TABLE CHANGE COLUMN` statements
currently, do we plan to support that? Are there any discussions I can refer
to? Thank you!
> Allow users to update the comment of a column
> ---------------------------------------------
>
> Key: SPARK-17910
> URL: https://issues.apache.org/jira/browse/SPARK-17910
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Yin Huai
>
> Right now, once a user set the comment of a column with create table command,
> he/she cannot update the comment. It will be useful to provide a public
> interface (e.g. SQL) to do that.
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