alamb commented on code in PR #14541:
URL: https://github.com/apache/datafusion/pull/14541#discussion_r1946707537


##########
datafusion/expr/src/udaf.rs:
##########
@@ -119,9 +119,12 @@ impl AggregateUDF {
     where
         F: AggregateUDFImpl + 'static,
     {
-        Self {
-            inner: Arc::new(fun),
-        }
+        Self::new_from_shared_impl(Arc::new(fun))
+    }
+
+    /// Create a new `AggregateUDF` from a `[AggregateUDFImpl]` trait object

Review Comment:
   I suggest also adding `From` impls for these functions similar to 
   
   
https://github.com/apache/datafusion/blob/4f6062e81b7201b58da2b20c63333a5e3ae3c8df/datafusion/expr/src/udaf.rs#L288-L295
   
   That would allow creation using
   ```rust
   let fun: fun: Arc<dyn AggregateUDFImpl> = ...;
   // create using `from`:
   let new_func = AggregateUDFImpl::from(fun);
   ```



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