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https://issues.apache.org/jira/browse/PHOENIX-5956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17139286#comment-17139286
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Hudson commented on PHOENIX-5956:
---------------------------------
FAILURE: Integrated in Jenkins build PreCommit-PHOENIX-Build #3976 (See
[https://builds.apache.org/job/PreCommit-PHOENIX-Build/3976/])
PHOENIX-5956 Optimize LeftSemiJoin For SortMergeJoin (chenglei: rev
11c24925ec29f91970c36322cf3d7a00a32efc40)
* (edit)
phoenix-core/src/main/java/org/apache/phoenix/execute/SortMergeJoinPlan.java
* (add)
phoenix-core/src/test/java/org/apache/phoenix/execute/SortMergeJoinTest.java
* (edit)
phoenix-core/src/it/java/org/apache/phoenix/end2end/SortMergeJoinMoreIT.java
> Optimize LeftSemiJoin For SortMergeJoin
> ----------------------------------------
>
> Key: PHOENIX-5956
> URL: https://issues.apache.org/jira/browse/PHOENIX-5956
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 4.15.0
> Reporter: chenglei
> Assignee: chenglei
> Priority: Major
> Fix For: 5.1.0, 4.16.0
>
> Attachments: PHOENIX-5956_v1-4.x.patch
>
>
> When LHS left semi join RHS through {{SortMergeJoinPlan}}, if RHS is end and
> returns null, then the left semi join could end early, but for
> {{SortMergeJoinPlan.SemiAntiJoinIterator}} , it would continue until LHS is
> exhausted even if RHS returns null, which is unnecessary.
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