fix: fix the DisPlay for

Signed-off-by: StandingMan <jmtangcs@gmail.com>

Author: Standing-Man

datafusion/expr/src/expr.rs

@@ -1402,10 +1402,14 @@ pub struct PlannedReplaceSelectItem {
 
 impl Display for PlannedReplaceSelectItem {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        write!(f, "REPLACE")?;
-        for item in &self.items {
-            write!(f, " ({item})")?;
+        write!(f, "REPLACE (")?;
+        for (i, item) in self.items.iter().enumerate() {
+            if i > 0 {
+                write!(f, ", ")?;
+            }
+            write!(f, "{item}")?;
         }
+        write!(f, ")")?;
         Ok(())
     }
 }

datafusion/sql/src/statement.rs

@@ -1296,7 +1296,8 @@ impl<S: ContextProvider> SqlToRel<'_, S> {
                 let function_body = match function_body {
                     Some(r) => Some(self.sql_to_expr(
                         match r {
-                            ast::CreateFunctionBody::AsBeforeOptions{body: expr, ..} => expr,
+                            // `link_symbol` indicates if the primary expression contains the name of shared library file. 
+                            ast::CreateFunctionBody::AsBeforeOptions{body: expr, link_symbol: _link_symbol} => expr,
                             ast::CreateFunctionBody::AsAfterOptions(expr) => expr,
                             ast::CreateFunctionBody::Return(expr) => expr,
                             ast::CreateFunctionBody::AsBeginEnd(_) => {