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https://issues.apache.org/jira/browse/HIVE-8518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176961#comment-14176961
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Hive QA commented on HIVE-8518:
-------------------------------
{color:green}Overall{color}: +1 all checks pass
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12675794/HIVE-8518.1.patch
{color:green}SUCCESS:{color} +1 6565 tests passed
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1352/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1352/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-1352/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12675794
- PreCommit-HIVE-TRUNK-Build
> Compile time skew join optimization returns duplicated results
> --------------------------------------------------------------
>
> Key: HIVE-8518
> URL: https://issues.apache.org/jira/browse/HIVE-8518
> Project: Hive
> Issue Type: Bug
> Reporter: Rui Li
> Assignee: Rui Li
> Attachments: HIVE-8518.1.patch
>
>
> Compile time skew join optimization clones the join operator tree and unions
> the results.
> The problem here is that we don't properly insert the predicate for the
> cloned join (relying on an assert statement).
> To reproduce the issue, run the simple query:
> {code}select * from tbl1 join tbl2 on tbl1.key=tbl2.key;{code}
> And suppose there's some skew in tbl1 (specify skew with CREATE or ALTER
> statement).
> Duplicated results will be returned if you set
> hive.optimize.skewjoin.compiletime=true.
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