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https://issues.apache.org/jira/browse/HIVE-24388?focusedWorklogId=522689&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-522689
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ASF GitHub Bot logged work on HIVE-24388:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 10/Dec/20 12:10
            Start Date: 10/Dec/20 12:10
    Worklog Time Spent: 10m 
      Work Description: kgyrtkirk commented on a change in pull request #1750:
URL: https://github.com/apache/hive/pull/1750#discussion_r540118205



##########
File path: 
ql/src/java/org/apache/hadoop/hive/ql/optimizer/SharedWorkOptimizer.java
##########
@@ -17,6 +17,7 @@
  */
 package org.apache.hadoop.hive.ql.optimizer;
 
+import java.io.File;

Review comment:
       yeah...I've some stuff which write out `File`-s for now...and I just 
remove it at the end of preparing the patch....
   it gives easier insights into what happened in the SWO.
   
   I would really like to build it into the system and expose it on the HS2 web 
interface - it would be very usefull...will get to that as well :)
   but first I would like to finish this set of patches :)




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 522689)
    Time Spent: 50m  (was: 40m)

> Enhance swo optimizations to merge EventOperators
> -------------------------------------------------
>
>                 Key: HIVE-24388
>                 URL: https://issues.apache.org/jira/browse/HIVE-24388
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> {code}
> EVENT1->TS1
> EVENT2->TS2
> {code}
> are not merged because a TS may only handles the first event properly; 
> sending 2 events would cause one of them to be ignored



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