You need to first investigate whether the transformation rules or operators are correctly implemented or not. Typically there is a bug if you see the planner fails to terminate.
There is cancelFlag variable and checkCancel() method in VolcanoPlanner. You can pass your own CancelFlag implementation to Context when constructing planner [1] so that you can interrupt the planning when it times out or the cost the greater or lower than some threshold. [1] https://github.com/apache/calcite/blob/e2f949d5d6cff79cbe8565bc3e85f437dee9fd7e/core/src/main/java/org/apache/calcite/plan/AbstractRelOptPlanner.java#L102 On 2022/08/26 20:29:15 Pranav Deshpande wrote: > Dear Apache Calcite Dev Team, > Sometimes my volcano planner fails to terminate because there are many > plans to search for (millions of them). > > Is there a way to prune the search if a specific amount of time has elapsed > or if the same net cost is obtained for the Xth time, etc. > > Requesting the community's guidance on this. > > Thanks & Regards, > Pranav >
