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Posted to issues@spark.apache.org by "Takuya Ueshin (JIRA)" <ji...@apache.org> on 2018/08/13 03:27:00 UTC

[jira] [Created] (SPARK-25096) Loosen nullability if the cast is force-nullable.

Takuya Ueshin created SPARK-25096:
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             Summary: Loosen nullability if the cast is force-nullable.
                 Key: SPARK-25096
                 URL: https://issues.apache.org/jira/browse/SPARK-25096
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.4.0
            Reporter: Takuya Ueshin


In type coercion for complex types, if the found type is force-nullable to cast, we should loosen the nullability to be able to cast. Also for map key type, we can't use the type.



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