mingmwang commented on issue #4267:
URL: 
https://github.com/apache/arrow-datafusion/issues/4267#issuecomment-1328893809

   I think today in DataFusion's logical optimizer rules, most of the 
complexity come from dealing with predicates. Let's why I want to introduce the 
QueryConstraints into the logical plan structs.
   
   https://github.com/apache/arrow-datafusion/issues/4222


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