findepi commented on PR #13267:
URL: https://github.com/apache/datafusion/pull/13267#issuecomment-2480692128

   > Meanwhile, the physical planner can still generate an efficient physical 
plan with the necessary optimizations (e.g., Join with pushdown). If we can 
enable this configuration by default without altering any original physical 
plan, that would be the best-case scenario.
   
   That would impose a limit on future optimizations on logical plans, which 
isn't desirable.
   
   > 1. Column references require additional processing to project correctly
   
   Can unparsing do this additional processing as needed for unparsing?
   
   Generally, is unparsing expected to produce a query plan that is very 
similar to original query parsed by DF?
   I hope that's a non goal, but if it is, it should really disable logical 
plan optimizations and maybe just do nothing more than projection pushdown.
   


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