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https://issues.apache.org/jira/browse/HIVE-11262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14627468#comment-14627468
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Hive QA commented on HIVE-11262:
--------------------------------
{color:green}Overall{color}: +1 all checks pass
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12745338/HIVE-11262.1.patch
{color:green}SUCCESS:{color} +1 9190 tests passed
Test results:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4614/testReport
Console output:
http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4614/console
Test logs:
http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-4614/
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: 12745338 - PreCommit-HIVE-TRUNK-Build
> Skip MapJoin processing if the join hash table is empty
> -------------------------------------------------------
>
> Key: HIVE-11262
> URL: https://issues.apache.org/jira/browse/HIVE-11262
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Jason Dere
> Assignee: Jason Dere
> Attachments: HIVE-11262.1.patch
>
>
> Currently the map join processor processes all rows of the big table, even
> when the hash table is empty. If it is an inner join, we should be able to
> skip the join processing, since the result should be empty.
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