diff --git a/src/HemiFrame/Lib/SQLBuilder/Query.php b/src/HemiFrame/Lib/SQLBuilder/Query.php
index 9272f2e..4d08e78 100644
--- a/src/HemiFrame/Lib/SQLBuilder/Query.php
+++ b/src/HemiFrame/Lib/SQLBuilder/Query.php
@@ -529,9 +529,12 @@ public function insertDelayed(mixed $tables): self
         return $this;
     }
 
-    public function select(mixed $columns = '*'): self
+    public function select(mixed $columns = '*', $clear = false): self
     {
         $this->setQueryType('select');
+        if ($clear) {
+            $this->columns = [];
+        }
         if (is_string($columns)) {
             $arrayColumns = explode(',', $columns);
             $this->columns = array_merge($this->columns, $arrayColumns);