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https://issues.apache.org/jira/browse/SPARK-12323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yin Huai resolved SPARK-12323.
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Resolution: Fixed
Fix Version/s: 2.0.0
> Don't assign default value for non-nullable columns of a Dataset
> ----------------------------------------------------------------
>
> Key: SPARK-12323
> URL: https://issues.apache.org/jira/browse/SPARK-12323
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.0, 2.0.0
> Reporter: Cheng Lian
> Assignee: Cheng Lian
> Fix For: 2.0.0
>
>
> For a field of a Dataset, if it's specified as non-nullable in the schema of
> the Dataset, we shouldn't assign default value for it if input data contain
> null. Instead, a runtime exception with nice error message should be thrown,
> and ask the user to use {{Option}} or nullable types (e.g.,
> {{java.lang.Integer}} instead of {{scala.Int}}).
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