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From "Jungtaek Lim (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-26991) Investigate difference of `returnNullable` between ScalaReflection.deserializerFor and JavaTypeInference.deserializerFor
Date Tue, 26 Feb 2019 05:49:00 GMT
Jungtaek Lim created SPARK-26991:
------------------------------------

             Summary: Investigate difference of `returnNullable` between ScalaReflection.deserializerFor
and JavaTypeInference.deserializerFor
                 Key: SPARK-26991
                 URL: https://issues.apache.org/jira/browse/SPARK-26991
             Project: Spark
          Issue Type: Task
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Jungtaek Lim


This issue tracks the effort on investigation on difference between ScalaReflection.deserializerFor
and JavaTypeInference.deserializerFor, especially the reason why Java side uses `returnNullable
= true` whereas `returnNullable = false`.

The origin discussion is linked here:
https://github.com/apache/spark/pull/23854#discussion_r260117702




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