jackwener commented on issue #2254: URL: https://github.com/apache/arrow-datafusion/issues/2254#issuecomment-1100876623
Note: It isn't a `optimizer rule` ! It is because the following transformation can't terminate in Finite State Machine of rule. ``` select * from t1 where c1 > 0; -> select * from t1 where c1 > 0 and c1 is not null; -> select * from t1 where c1 > 0 and c1 is not null and c1 is not null; -> ..... ``` So, In fact, this is a `rewrite` in planner build (Specifically, it is in `plan_selection`). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
