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https://issues.apache.org/jira/browse/SPARK-25048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16601210#comment-16601210
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Apache Spark commented on SPARK-25048:
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User 'MaxGekk' has created a pull request for this issue:
https://github.com/apache/spark/pull/22316
> Pivoting by multiple columns in Scala/Java
> ------------------------------------------
>
> Key: SPARK-25048
> URL: https://issues.apache.org/jira/browse/SPARK-25048
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.3.1
> Reporter: Maxim Gekk
> Priority: Minor
>
> Need to change or extend existing API to make pivoting by multiple columns
> possible. Users should be able to use many columns and values like in the
> example:
> {code:scala}
> trainingSales
> .groupBy($"sales.year")
> .pivot(struct(lower($"sales.course"), $"training"), Seq(
> struct(lit("dotnet"), lit("Experts")),
> struct(lit("java"), lit("Dummies")))
> ).agg(sum($"sales.earnings"))
> {code}
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