[jira] [Commented] (DRILL-831) NOT-IN query returns wrong results if right side is empty

["Aman Sinha (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14007673#comment-14007673 ] 

Aman Sinha commented on DRILL-831:
----------------------------------

The problem was in hash join when we were not executing the 'probe' phase if the hash table was null (due to  empty right side).  Uploaded a patch for this. 

> NOT-IN query returns wrong results if right side is empty
> ---------------------------------------------------------
>
>                 Key: DRILL-831
>                 URL: https://issues.apache.org/jira/browse/DRILL-831
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Aman Sinha
>            Assignee: Aman Sinha
>         Attachments: 0001-Fix-DRILL-831-Execute-the-probe-phase-for-outer-join.patch
>
>
> 0: jdbc:drill:zk=local> select count(*) from region r1 where r1.r_regionkey not in (select r2.r_regionkey from region r2 where r2.r_regionkey = 10);
> +--+
> |  |
> +--+
> +--+
> No rows selected
> This correct result is 5 rows since right side of the NOT IN produces 0 rows. 



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