Tim Armstrong reassigned IMPALA-5727:

    Assignee:     (was: Alexander Behm)

> 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.

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