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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10628) Incorrect result when vectorized native mapjoin is enabled
Date Wed, 06 May 2015 23:03:59 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14531631#comment-14531631
] 

Matt McCline commented on HIVE-10628:
-------------------------------------

 I was unaware of the "<=>" operator.

@Description(name = "<=>", value = "a FUNC b - Returns same result with EQUAL(=) operator
" +
"for non-null operands, but returns TRUE if both are NULL, FALSE if one of the them is NULL")

> Incorrect result when vectorized native mapjoin is enabled
> ----------------------------------------------------------
>
>                 Key: HIVE-10628
>                 URL: https://issues.apache.org/jira/browse/HIVE-10628
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 1.2.0
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>             Fix For: 1.2.0, 1.3.0
>
>
> Incorrect results for this query:
> {noformat}
> select count(*) from store_sales ss join store_returns sr on (sr.sr_item_sk <=>
ss.ss_item_sk and sr.sr_customer_sk <=> ss.ss_customer_sk and sr.sr_item_sk <=>
ss.ss_item_sk) where ss.ss_net_paid > 1000;
> {noformat}



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