fix #842

src/Grid/Column.php

@@ -195,20 +195,7 @@ class Column
 
     protected function formatName($name)
     {
-        if (! Str::contains($name, '.')) {
-            return $name;
-        }
-
-        $names = explode('.', $name);
-        $count = count($names);
-
-        foreach ($names as $i => &$name) {
-            if ($i + 1 < $count) {
-                $name = Str::snake($name);
-            }
-        }
-
-        return implode('.', $names);
+        return $name;
     }
 
     /**