LucaCappelletti94 commented on code in PR #2160:
URL: 
https://github.com/apache/datafusion-sqlparser-rs/pull/2160#discussion_r2686017947


##########
src/parser/mod.rs:
##########
@@ -5455,14 +5460,14 @@ impl<'a> Parser<'a> {
         &mut self,
         or_replace: bool,
         temporary: bool,
-    ) -> Result<Statement, ParserError> {
+    ) -> Result<CreateFunction, ParserError> {

Review Comment:
   I made it so all of these type of function return the strictest concrete 
variant, which is the thing they actually return, so that in practice one can 
write:
   
   ```rust
   let my_specific_variant = parse_my_specific_variant(...)?
   ```
   
   instead of:
   
   ```rust
   let Statement::MySpecificVariant(my_specific_variant) = 
parse_my_specific_variant(...)? else {
       unreachable!();
   };
   ```
   
   which seems much cleaner.



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