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https://issues.apache.org/jira/browse/SPARK-22741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruben Janssen updated SPARK-22741:
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Description:
A global aggregate for typed aggregation is currently missing. When an
aggregation on a dataset is currently called, it is a relational aggregation
which actually calls groupBy().agg, so the returned type is Row instead of
Scala objects.
This is blocking other features such as SPARK-20890, because we want to be able
to return Option for min/max functions.
was:
A global aggregate for typed aggregation is currently missing. When an
aggregation on a dataset is currently called, it is a relational aggregation
which actually calls groupBy().agg, so the returned type is Row instead of
Scala objects.
This is blocking other features such as SPARK-20890, because we want to be able
to return Options for min/max functions.
> Add global aggregate for typed aggregation
> ------------------------------------------
>
> Key: SPARK-22741
> URL: https://issues.apache.org/jira/browse/SPARK-22741
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: Ruben Janssen
>
> A global aggregate for typed aggregation is currently missing. When an
> aggregation on a dataset is currently called, it is a relational aggregation
> which actually calls groupBy().agg, so the returned type is Row instead of
> Scala objects.
> This is blocking other features such as SPARK-20890, because we want to be
> able to return Option for min/max functions.
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