Takuya Ueshin created SPARK-16167:
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Summary: RowEncoder should preserve array/map type nullability.
Key: SPARK-16167
URL: https://issues.apache.org/jira/browse/SPARK-16167
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Takuya Ueshin
Currently {{RowEncoder}} doesn't preserve nullability of {{ArrayType}} or
{{MapType}}.
It returns always {{containsNull = true}} for {{ArrayType}},
{{valueContainsNull = true}} for {{MapType}} and also the nullability of itself
is always {{true}}.
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