diff --git a/src/Manipulation/Select.php b/src/Manipulation/Select.php
index fbb864c..44b4ad0 100644
--- a/src/Manipulation/Select.php
+++ b/src/Manipulation/Select.php
@@ -20,6 +20,11 @@
  */
 class Select extends AbstractBaseQuery
 {
+    const WILDCARD_NONE = 0;
+    const WILDCARD_FRONT = 1;
+    const WILDCARD_BACK = 2;
+    const WILDCARD_BOTH = 3;
+
     /**
      * @var Table
      */