[jira] [Updated] (HIVE-8406) Research on skewed join [Spark Branch]

[Rui Li (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HIVE-8406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rui Li updated HIVE-8406:
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Attachment: Skew join background.pdf

Upload the doc so it may help people get a better understand how skew join is 
done. Comments and suggestions are welcome.
The doc may change as I dig deeper into the details and begin implementation.

 Research on skewed join [Spark Branch]
 --

 Key: HIVE-8406
 URL: https://issues.apache.org/jira/browse/HIVE-8406
 Project: Hive
  Issue Type: Sub-task
  Components: Spark
Reporter: Xuefu Zhang
Assignee: Rui Li
 Attachments: Skew join background.pdf


 Research on how to handle skewed join for hive on spark. Here is original 
 hive's design doc for skewed join, 
 https://cwiki.apache.org/confluence/display/Hive/Skewed+Join+Optimization.



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[jira] [Updated] (HIVE-8406) Research on skewed join [Spark Branch]

[Xuefu Zhang (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HIVE-8406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Xuefu Zhang updated HIVE-8406:
--
Issue Type: Sub-task  (was: Task)
Parent: HIVE-7292

 Research on skewed join [Spark Branch]
 --

 Key: HIVE-8406
 URL: https://issues.apache.org/jira/browse/HIVE-8406
 Project: Hive
  Issue Type: Sub-task
  Components: Spark
Reporter: Xuefu Zhang

 Research on how to handle skewed join for hive on spark. Here is original 
 hive's design doc for skewed join, 
 https://cwiki.apache.org/confluence/display/Hive/Skewed+Join+Optimization.



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