alamb commented on PR #16599:
URL: https://github.com/apache/datafusion/pull/16599#issuecomment-3018906835

   > I agree, not so sure either :) though I was also thinking about other 
areas where we might do casting in filter expression and therefore limit the 
pushdown usefulness. Needs some examples though to show this is happening.
   
   I think we already have a bunch of tests for this (no casts on the column) 
for string view, for example
   
https://github.com/apache/datafusion/blob/ebf49b4fe585820caaad3b8c04529633190f48be/datafusion/sqllogictest/test_files/string/string_view.slt#L212-L219
   
   @adriangb is also thinking about / working on a more general predicate 
optimziation in
   - https://github.com/apache/datafusion/pull/16530
   
   They are on my list of things to review this week (the code changes are 
coming fast and furious)


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