[ https://issues.apache.org/jira/browse/IMPALA-5727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Armstrong resolved IMPALA-5727. ----------------------------------- Resolution: Later Too open ended. > Join Order Optimization time increases non-linearly with the number of tables > ----------------------------------------------------------------------------- > > Key: IMPALA-5727 > URL: https://issues.apache.org/jira/browse/IMPALA-5727 > Project: IMPALA > Issue Type: Improvement > Components: Frontend > Reporter: Alan Choi > Priority: Major > Labels: performance, planner > > The planning time (believed to be in join order optimization) increases > non-linearly with increasing number of tables in the join. By increasing the > number of tables in the join from 5 to 10, the planning time increases from > 200ms to 700+ms. > For small data query, 700+ms planning time is significant. -- This message was sent by Atlassian Jira (v8.3.4#803005)