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From "Vineet Garg (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HIVE-14594) CBO: Calcite Operator To Hive Operator(Calcite Return Path): Fix wrong result in join_filters_overlap
Date Mon, 22 Aug 2016 04:20:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15430019#comment-15430019
] 

Vineet Garg edited comment on HIVE-14594 at 8/22/16 4:19 AM:
-------------------------------------------------------------

Simple repro:

Query: {code} select * from a left outer join a b on (a.key=b.key AND a.value=50 AND b.value=50{code}

Expected Result: 
{code} 
100	40	NULL	NULL
100	50	100	50
100	60	NULL	NULL
{code}

Actual Result:
{code}
100	40	NULL	50
100	50	100	50
100	60	NULL	50
{code}


was (Author: vgarg):
Simple repro:

Query: {code} select * from a left outer join a b on (a.key=b.key AND a.value=50 AND b.value=50)
{code}
Expected Result: 
{code} 
100	40	NULL	NULL
100	50	100	50
100	60	NULL	NULL
{code}

Actual Result:
{code}
100	40	NULL	50
100	50	100	50
100	60	NULL	50
{code}

> CBO: Calcite Operator To Hive Operator(Calcite Return Path): Fix wrong result in join_filters_overlap
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-14594
>                 URL: https://issues.apache.org/jira/browse/HIVE-14594
>             Project: Hive
>          Issue Type: Sub-task
>          Components: CBO
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>
> Setup
> {code} create table a as SELECT 100 as key, a.value as value FROM src LATERAL VIEW explode(array(40,
50, 60)) a as value limit 3; {code}
> Query:
> {code} select * from a left outer join a b on (a.key=b.key AND a.value=50 AND b.value=50)
left outer join a c on (a.key=c.key AND a.value=60 AND c.value=60); {code}
> Expected Result:
> {code}
> 100	40	NULL	NULL	NULL	NULL
> 100	50	100	50	NULL	NULL
> 100	60	NULL	NULL	100	60
> {code}
> Actual Result:
> {code}
> 100	40	NULL	50	NULL	60
> 100	50	100	50	NULL	60
> 100	60	NULL	50	100	60
> {code}



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