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Posted to issues@hive.apache.org by "Vineet Garg (JIRA)" <ji...@apache.org> on 2018/08/16 22:42:00 UTC

[jira] [Assigned] (HIVE-20406) Nested Coalesce giving incorrect results

     [ https://issues.apache.org/jira/browse/HIVE-20406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vineet Garg reassigned HIVE-20406:
----------------------------------

    Assignee: Vineet Garg

> Nested Coalesce giving incorrect results
> ----------------------------------------
>
>                 Key: HIVE-20406
>                 URL: https://issues.apache.org/jira/browse/HIVE-20406
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>    Affects Versions: 3.0.0
>            Reporter: Riju Trivedi
>            Assignee: Vineet Garg
>            Priority: Critical
>
> Below query is returning NULL instead of 'TEST' 
> select coalesce(coalesce(null), 'TEST');
> {noformat}
> INFO  : OK
> +-------+
> |  _c0  |
> +-------+
> | NULL  |
> +-------+
> {noformat}



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