comphead opened a new issue, #10442:
URL: https://github.com/apache/datafusion/issues/10442

   Sometimes DF uses 2 schema sources, which is schema from previous node and 
current like in example(s) below. 
   
   Would be nice to check if we can use only 1 schema, multiple schemas are 
usually confusing
   
                 I agree it doesn't make sense -- however, it is the same logic 
as in `with_new_exprs`:
   
   
https://github.com/apache/datafusion/blob/fad16e74229decc40bccf22947d3659cd29fee6f/datafusion/expr/src/logical_plan/plan.rs#L913-L925
   
   _Originally posted by @alamb in 
https://github.com/apache/datafusion/pull/10405#discussion_r1594332291_
               


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