findepi commented on code in PR #13517:
URL: https://github.com/apache/datafusion/pull/13517#discussion_r1855189688


##########
datafusion/expr/src/logical_plan/ddl.rs:
##########
@@ -288,8 +290,234 @@ impl PartialOrd for CreateExternalTable {
     }
 }
 
+impl CreateExternalTable {
+    pub fn new(fields: CreateExternalTableFields) -> Result<Self> {

Review Comment:
   > Given all the fields in `CreateExternalTable` are `pub` anyway, I don't 
think introducing `CreateExternalTableFields` requires all construction to go 
through `new` 🤔
   
   i think it's disallowed by non_exhaustive.
   in fact, i did revert this PR changes in 
`datafusion/core/src/catalog_common/listing_schema.rs` and `cargo check` failed 
with
   
   ```
   error[E0639]: cannot create non-exhaustive struct using struct expression
      --> datafusion/core/src/catalog_common/listing_schema.rs:134:26
       |
   134 |                           &CreateExternalTable {
       |  __________________________^
   135 | |                             schema: Arc::new(DFSchema::empty()),
   136 | |                             name,
   137 | |                             location: table_url,
   ...   |
   147 | |                             column_defaults: Default::default(),
   148 | |                         },
       | |_________________________^
   
   For more information about this error, try `rustc --explain E0639`.
   ```
   
   



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