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Posted to dev@hive.apache.org by "Harish Butani (JIRA)" <ji...@apache.org> on 2014/09/09 02:46:28 UTC

[jira] [Commented] (HIVE-8025) [CBO] Handle null-safe joins

    [ https://issues.apache.org/jira/browse/HIVE-8025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14126402#comment-14126402 ] 

Harish Butani commented on HIVE-8025:
-------------------------------------

+1

> [CBO] Handle null-safe joins
> ----------------------------
>
>                 Key: HIVE-8025
>                 URL: https://issues.apache.org/jira/browse/HIVE-8025
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: HIVE-8025.cbo.patch
>
>
> We will not optimize query containing NS join expression because our join reordering algo cant optimize such joins.



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