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https://issues.apache.org/jira/browse/SPARK-20411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-20411:
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Labels: bulk-closed (was: )
> New features for expression.scalalang.typed
> -------------------------------------------
>
> Key: SPARK-20411
> URL: https://issues.apache.org/jira/browse/SPARK-20411
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0, 2.0.1, 2.1.0
> Reporter: Loic Descotte
> Priority: Minor
> Labels: bulk-closed
>
> In Spark 2 it is possible to use typed expressions for aggregation methods:
> {code}
> import org.apache.spark.sql.expressions.scalalang._
> dataset.groupByKey(_.productId).agg(typed.sum[Token](_.score)).toDF("productId",
> "sum").orderBy('productId).show
> {code}
> It seems that only avg, count and sum are defined :
> https://spark.apache.org/docs/2.1.0/api/java/org/apache/spark/sql/expressions/scalalang/typed.html
> It is very nice to be able to use a typesafe DSL, but it would be good to
> have more possibilities, like min and max functions.
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