wForget opened a new pull request, #1575:
URL: https://github.com/apache/datafusion-comet/pull/1575

   ## Which issue does this PR close?
   
   Part of #1574.
   
   ## Rationale for this change
   
   The data schema of spark parquet datasource scan may not be consistent with 
the actual schema of file. This may cause the `projection/filter` to not behave 
as expected.
   
   ## What changes are included in this PR?
   
   This PR makes `data schema` and `file schema` case insensitive in schema 
adapter, but it does not affect `pruning_predicate` and 
`page_pruning_predicate`.
   
   ## How are these changes tested?
   
   added unit test
   


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