shehabgamin commented on code in PR #14268:
URL: https://github.com/apache/datafusion/pull/14268#discussion_r1929723820


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datafusion/expr/src/type_coercion/functions.rs:
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@@ -584,23 +544,7 @@ fn get_valid_types(
                 match target_type_class {
                     TypeSignatureClass::Native(native_type) => {
                         let target_type = native_type.native();
-                        if &logical_type == target_type {

Review Comment:
   If it's `TypeSignature::Coercible` with a 
`TypeSignatureClass::Native(logical_string())`, then yes. Any function that 
specifies `TypeSignature::Coercible` with a `TypeSignatureClass::Native` should 
coerce according to the behavior implemented in the `default_cast_for` function 
for `NativeType` in order to be consistent.



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