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https://issues.apache.org/jira/browse/SPARK-25083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16591849#comment-16591849
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Apache Spark commented on SPARK-25083:
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User 'xuanyuanking' has created a pull request for this issue:
https://github.com/apache/spark/pull/22222

> remove the type erasure hack in data source scan
> ------------------------------------------------
>
>                 Key: SPARK-25083
>                 URL: https://issues.apache.org/jira/browse/SPARK-25083
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Wenchen Fan
>            Priority: Major
>
> It's hacky to pretend a `RDD[ColumnarBatch]` to be a `RDD[InternalRow]`. We 
> should make the type explicit.



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