Drew Robb created SPARK-22152:
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Summary: Add Dataset flatten function
Key: SPARK-22152
URL: https://issues.apache.org/jira/browse/SPARK-22152
Project: Spark
Issue Type: Wish
Components: Spark Core
Affects Versions: 2.2.0
Reporter: Drew Robb
Priority: Minor
Currently you can use an identify flatMap to flatten a Dataset, for example to
get from a Dataset[Option[T]] to a Dataset[T], but adding flatten directly
would allow for a more similar API to scala collections.
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