[jira] [Assigned] (SPARK-25417) ArrayContains function may return incorrect result when right expression is implicitly down casted

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-25417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-25417:
------------------------------------

    Assignee:     (was: Apache Spark)

> ArrayContains function may return incorrect result when right expression is implicitly down casted
> --------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-25417
>                 URL: https://issues.apache.org/jira/browse/SPARK-25417
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Dilip Biswal
>            Priority: Major
>
> In ArrayContains, we currently cast the right hand side expression to match the element type of the left hand side Array. This may result in down casting and may return wrong result or questionable result.
> Example :
> {code:java}
> spark-sql> select array_position(array(1), 1.34);
> true
> {code}
>  
> {code:java}
> spark-sql> select array_position(array(1), 'foo');
> null
> {code}



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