[jira] [Assigned] (HIVE-16050) Regression: Union of null with non-null

["Gopal V (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-16050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gopal V reassigned HIVE-16050:
------------------------------

    Assignee: Gopal V

> Regression: Union of null with non-null 
> ----------------------------------------
>
>                 Key: HIVE-16050
>                 URL: https://issues.apache.org/jira/browse/HIVE-16050
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Planning
>    Affects Versions: 2.2.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>             Fix For: 2.2.0
>
>
> {code}
> hive> select null as c1 union select 1 as c2;
>     FAILED: SemanticException Schema of both sides of union should match: Column c1 is of type void on first table and type int on second table. Cannot tell the position of null AST.
> {code}
> This looks related to HIVE-14251 which removed certain cases from the UNION type coercion operations.



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