fix lint

Author: vigimite

src/common_union.rs

@@ -114,7 +114,7 @@ impl FromIterator<Option<JsonUnionField>> for JsonUnion {
     }
 }
 
-/// Tries to collect an array represented as a string to a JsonUnion
+/// Tries to collect an array represented as a string to a `JsonUnion`
 impl FromIterator<Option<String>> for JsonUnion {
     fn from_iter<I: IntoIterator<Item = Option<String>>>(iter: I) -> Self {
         let inner = iter.into_iter();

src/rewrite.rs

@@ -78,7 +78,7 @@ fn unnest_json_calls(func: &ScalarFunction) -> Option<Transformed<Expr>> {
 fn extract_scalar_function(expr: &Expr) -> Option<&ScalarFunction> {
     match expr {
         Expr::ScalarFunction(func) => Some(func),
-        Expr::Alias(alias) => extract_scalar_function(&*alias.expr),
+        Expr::Alias(alias) => extract_scalar_function(&alias.expr),
         _ => None,
     }
 }