comphead opened a new pull request, #8823:
URL: https://github.com/apache/arrow-datafusion/pull/8823

   ## Which issue does this PR close?
   
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   Closes #.
   
   ## Rationale for this change
   To create physical expression we require 2 sets of schemas:
   - logical
   - physical
   
   Having 2 schemas is confusing in some sense, this PR is to create physical 
expression based on logical schema only.
   The reason the logical schema was chosen is the schema contains more 
information than physical schema, for instance qualifier information.
   
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   ## What changes are included in this PR?
   Signature simplified for bunch of methods creating the physical expressions.
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   ## Are these changes tested?
   
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   ## Are there any user-facing changes?
   
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