fix: prevent ambiguous column names

Author: Seb33300

src/EloquentDataTable.php

@@ -155,7 +155,7 @@ protected function isMorphRelation($relation)
     }
 
     /**
-     * Resolve the proper column name be used.
+     * Resolve the proper column name to be used.
      *
      *
      * @throws \Yajra\DataTables\Exceptions\Exception
@@ -166,7 +166,9 @@ protected function resolveRelationColumn(string $column): string
         $columnName = array_pop($parts);
         $relation = str_replace('[]', '', implode('.', $parts));
 
-        if ($this->isNotEagerLoaded($relation)) {
+        if (! $relation) {
+            return $this->query->getModel()->getTable().'.'.$column;
+        } elseif ($this->isNotEagerLoaded($relation)) {
             return $column;
         }