guid

See doctrine/dbal@d154689

docs/en/reference/basic-mapping.rst

@@ -311,8 +311,6 @@ mapping from a PHP string to a SQL VARCHAR (or VARCHAR2 etc.
 depending on the RDBMS brand). Here is a quick overview of the
 built-in mapping types:
 
--  ``guid``: Type that maps a database GUID/UUID to a PHP string. Defaults to
-   varchar but uses a specific type if the platform supports it.
 -  ``blob``: Type that maps a SQL BLOB to a PHP resource stream
 
 A cookbook article shows how to define :doc:`your own custom mapping types