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https://issues.apache.org/jira/browse/SPARK-15577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15558049#comment-15558049
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Hyukjin Kwon commented on SPARK-15577:
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If I were a naive user from Spark 1.x, I think I would prefer to use
{{DataFrame}} in Java too.
> Java can't import DataFrame type alias
> --------------------------------------
>
> Key: SPARK-15577
> URL: https://issues.apache.org/jira/browse/SPARK-15577
> Project: Spark
> Issue Type: Improvement
> Components: Java API, SQL
> Affects Versions: 2.0.0
> Reporter: holdenk
>
> After SPARK-13244, all Java code needs to be updated to use Dataset<Row>
> instead of DataFrame as we used a type alias. Should we consider adding a
> DataFrame to the Java API which just extends Dataset<Row> for compatibility?
> cc [~liancheng] ?
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