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https://issues.apache.org/jira/browse/SPARK-16853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-16853:
----------------------------------
Component/s: SQL
> Analysis error for DataSet typed selection
> ------------------------------------------
>
> Key: SPARK-16853
> URL: https://issues.apache.org/jira/browse/SPARK-16853
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Sean Zhong
> Assignee: Sean Zhong
> Fix For: 2.1.0
>
>
> For DataSet typed selection
> {code}
> def select[U1: Encoder](c1: TypedColumn[T, U1]): Dataset[U1]
> {code}
> If U1 contains sub-fields, then it reports AnalysisException
> Reproducer:
> {code}
> scala> case class A(a: Int, b: Int)
> scala> Seq((0, A(1,2))).toDS.select($"_2".as[A])
> org.apache.spark.sql.AnalysisException: cannot resolve '`a`' given input
> columns: [_2];
> at
> org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
> at
> ...
> {code}
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