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https://issues.apache.org/jira/browse/HIVE-4146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607670#comment-13607670
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Gang Tim Liu commented on HIVE-4146:
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comment is false positive.
> bug with hive.auto.convert.join.noconditionaltask with outer joins
> ------------------------------------------------------------------
>
> Key: HIVE-4146
> URL: https://issues.apache.org/jira/browse/HIVE-4146
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: hive.4146.1.patch, hive.4146.2.patch, hive.4146.3.patch,
> hive.4146.4.patch, hive.4146.5.patch, hive.4146.6.patch
>
>
> Consider the following scenario:
> create table s1 as select * from src where key = 0;
> set hive.auto.convert.join.noconditionaltask=false;
>
> SELECT * FROM s1 src1 LEFT OUTER JOIN s1 src2 ON (src1.key = src2.key AND
> src2.key > 10);
> gives correct results
> 0 val_0 NULL NULL
> 0 val_0 NULL NULL
> 0 val_0 NULL NULL
> whereas it gives no results with hive.auto.convert.join.noconditionaltask set
> to true
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