Wenchen Fan created SPARK-20125:
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Summary: Dataset of type option of map does not work
Key: SPARK-20125
URL: https://issues.apache.org/jira/browse/SPARK-20125
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.1.0, 2.2.0
Reporter: Wenchen Fan
Assignee: Wenchen Fan
A simple reproduce:
{code}
case class ABC(m: Option[scala.collection.Map[Int, Int]])
val ds = Seq(ABC(Some(Map(1 -> 1)))).toDS()
ds.collect()
{code}
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