Dandandan commented on PR #20664:
URL: https://github.com/apache/datafusion/pull/20664#issuecomment-4010439509

   @adriangb FYI
   
   Can we reconsider creating a large crazy large expression for the dynamic 
filters?
   
   now the size of the dynamic expression is something like
   
   * `number_of_join_keys` * `number_of_partitions` which creates _extremely 
large expressions_ on large core machines. 
   
   Perhaps create a `EvaluateByIdExpr` `PhysicalExpr` or something that has 
`Vec<PhysicalExpr>` that evaluates them by id, or disabling dynamic filters 
when having partitioned joins for the moment.


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