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https://issues.apache.org/jira/browse/HIVE-21006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16710619#comment-16710619
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Hive QA commented on HIVE-21006:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12950744/HIVE-21006.01.patch
{color:red}ERROR:{color} -1 due to no test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 15649 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/15185/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/15185/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-15185/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12950744 - PreCommit-HIVE-Build
> Extend SharedWorkOptimizer to remove semijoins when there is a reutilization
> opportunity
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-21006
> URL: https://issues.apache.org/jira/browse/HIVE-21006
> Project: Hive
> Issue Type: Improvement
> Components: Physical Optimizer
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Attachments: HIVE-21006.01.patch, HIVE-21006.patch
>
>
> Assume there are two TS operators in the plan over the same table, same
> columns, same conditions, etc.
> The first TS operator, TS1, has an incoming SJ edge. The second TS operator,
> TS2, does not have any incoming SJ edge.
> Since TS2 is reading the full table, we may just remove the SJ and TS1. Then
> we will keep and share TS2, since it reads all the data in any case.
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