adriangb commented on PR #23701:
URL: https://github.com/apache/datafusion/pull/23701#issuecomment-5025551587

   @zhuqi-lucas I wonder how this compares against previous proposals of 
tracking selectivity & compute time and disabling dynamic filters if they are 
not pulling their weight? Either at the expression level 
(https://github.com/apache/datafusion/pull/22234) or at the scan level 
(https://github.com/apache/datafusion/pull/22237).
   
   It seems that this PR is now both disabling the membership pushdown by 
default (`enable_hash_join_dynamic_membership_filter = false`) and changing the 
shape of the filter. I think we should evaluate that in separate changes. And 
neither of them seem like they need to be stacked on 
https://github.com/apache/datafusion/pull/22384?


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