diff --git a/manual/new/docs/en/object-relational-mapping/introduction.txt b/manual/new/docs/en/object-relational-mapping/introduction.txt
index b1989a2a6..c490bb674 100644
--- a/manual/new/docs/en/object-relational-mapping/introduction.txt
+++ b/manual/new/docs/en/object-relational-mapping/introduction.txt
@@ -39,3 +39,5 @@ class Email extends Doctrine_Record {
     }
 }
 </code>
+
+Note that validators / column constraints and the column length fields are optional.  The length may be omitted by using **null** for the length arguement, allowing doctrine to use a default length and permitting a fourth arguement for validation or column constraints.