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https://issues.apache.org/jira/browse/SPARK-25791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-25791.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 22785
[https://github.com/apache/spark/pull/22785]
> Datatype of serializers in RowEncoder should be accessible
> ----------------------------------------------------------
>
> Key: SPARK-25791
> URL: https://issues.apache.org/jira/browse/SPARK-25791
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Liang-Chi Hsieh
> Assignee: Liang-Chi Hsieh
> Priority: Major
> Fix For: 3.0.0
>
>
> The serializers of {{RowEncoder}} use few {{If}} Catalyst expression which
> inherits {{ComplexTypeMergingExpression}} that will check input data types.
> It is possible to generate serializers which fail the check and can't to
> access the data type of serializers. When producing {{If}} expression, we
> should use the same data type at its input expressions.
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