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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-26965) Makes ElementAt nullability more precise
Date Fri, 22 Feb 2019 04:12:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-26965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-26965:
------------------------------------

    Assignee:     (was: Apache Spark)

> Makes ElementAt nullability more precise
> ----------------------------------------
>
>                 Key: SPARK-26965
>                 URL: https://issues.apache.org/jira/browse/SPARK-26965
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Takeshi Yamamuro
>            Priority: Minor
>
> In master, ElementAt nullable is always true;
> https://github.com/apache/spark/blob/be1cadf16dc70e22eae144b3dfce9e269ef95acc/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala#L1977
> But, If input key is foldable, we could make its nullability more precise.
> This fix is the same with SPARK-26747 and -SPARK-26637- 



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