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https://issues.apache.org/jira/browse/SPARK-21043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16216953#comment-16216953
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Carlos Bribiescas commented on SPARK-21043:
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I really like this feature. Is there a motivation not to replace union with
this functionality, other than backwards compatibility?
> Add unionByName API to Dataset
> ------------------------------
>
> Key: SPARK-21043
> URL: https://issues.apache.org/jira/browse/SPARK-21043
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Reynold Xin
> Assignee: Takeshi Yamamuro
> Fix For: 2.3.0
>
>
> It would be useful to add unionByName which resolves columns by name, in
> addition to the existing union (which resolves by position).
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