[ https://issues.apache.org/jira/browse/HIVE-3670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yin Huai resolved HIVE-3670. ---------------------------- Resolution: Not A Problem Based on the code of setChildren in MapOperator, if multiple TableScanOperators are associated to the same path, those TableScanOperators will all be added into the children list of MapOperator. We can take advantage of it by adding optimizations (in separate jiras) which can make sure those operation paths using the same inputs can be executed in the same MR job. I will close this jira as "Not A Problem". > Optimize queries involving self join > ------------------------------------ > > Key: HIVE-3670 > URL: https://issues.apache.org/jira/browse/HIVE-3670 > Project: Hive > Issue Type: Sub-task > Components: Query Processor > Reporter: Yin Huai > Assignee: Yin Huai > -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira