Fix DDC-557

manual/en/basic-mapping.txt

@@ -130,6 +130,8 @@ the methods as you wish. Here is an example skeleton of such a custom type class
      */
     class MyType extends Type
     {
+        const MYTYPE = 'mytype'; // modify to match your type name
+
         public function getSqlDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
         {
             // return the SQL used to create your column type. To create a portable column type, use the $platform.
@@ -144,6 +146,11 @@ the methods as you wish. Here is an example skeleton of such a custom type class
         {
             // This is executed when the value is written to the database. Make your conversions here, optionally using the $platform.
         }
+
+        public function getName()
+        {
+            return self::MYTYPE; // modify to match your constant name
+        }
     }
 
 Restrictions to keep in mind: