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https://issues.apache.org/jira/browse/HIVE-22003?focusedWorklogId=280684&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-280684
]
ASF GitHub Bot logged work on HIVE-22003:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Jul/19 23:05
Start Date: 22/Jul/19 23:05
Worklog Time Spent: 10m
Work Description: vineetgarg02 commented on pull request #729: HIVE-22003
URL: https://github.com/apache/hive/pull/729#discussion_r306066881
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/optimizer/SharedWorkOptimizer.java
##########
@@ -486,6 +510,75 @@ private static boolean
sharedWorkOptimization(ParseContext pctx, SharedWorkOptim
return mergedExecuted;
}
+ private static void replaceSemijoinExpressions(TableScanOperator tsOp,
List<ExprNodeDesc> semijoinExprNodes) {
Review comment:
If I understand this correctly this is suppose to remove all semijoin
related expressions from TS as well as its children filter op. Why is this
method taking `retainableTsOp's` `semijoinExprNodes`?
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Issue Time Tracking
-------------------
Worklog Id: (was: 280684)
Time Spent: 10m
Remaining Estimate: 0h
> Shared work optimizer may leave semijoin branches in plan that are not used
> ---------------------------------------------------------------------------
>
> Key: HIVE-22003
> URL: https://issues.apache.org/jira/browse/HIVE-22003
> Project: Hive
> Issue Type: Bug
> Components: Physical Optimizer
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22003.01.patch, HIVE-22003.01.patch,
> HIVE-22003.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> This may happen only when the TS are the only operators that are shared.
> Repro attached in q file.
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