Mapeo de tipos de datos de las BD con DOCTRINE

A fin de realizar el mapeo de la base de datos a los objetos PHP se facilita la siguiente tabla que nos orientará sobre su implementación.

Doctrine	PHP	Database vendor
		Name	Version	Type
smallint	integer	MySQL	all	SMALLINT UNSIGNED [10] AUTO_INCREMENT [11]
		Drizzle	all	INT UNSIGNED [10] AUTO_INCREMENT [11]
		PostgreSQL	all	SMALLINT
		Oracle	all	NUMBER(5)
		SQL Server	all	SMALLINT IDENTITY [11]
		SQL Anywhere	all	UNSIGNED [10] SMALLINT IDENTITY [11]
		SQLite	all	INTEGER [16]
integer	integer	MySQL	all	INT UNSIGNED [10] AUTO_INCREMENT [11]
		Drizzle
		PostgreSQL	all	INT [12]
				SERIAL [11]
		Oracle	all	NUMBER(10)
		SQL Server	all	INT IDENTITY [11]
		SQL Anywhere	all	UNSIGNED [10] INT IDENTITY [11]
		SQLite	all	INTEGER [16]
bigint	string [8]	MySQL	all	BIGINT UNSIGNED [10] AUTO_INCREMENT [11]
		Drizzle
		PostgreSQL	all	BIGINT [12]
				BIGSERIAL [11]
		Oracle	all	NUMBER(20)
		SQL Server	all	BIGINT IDENTITY [11]
		SQL Anywhere	all	UNSIGNED [10] BIGINT IDENTITY [11]
		SQLite	all	INTEGER [16]
decimal [7]	string [9]	MySQL	all	NUMERIC(p, s) UNSIGNED [10]
		PostgreSQL	all	NUMERIC(p, s)
		Oracle
		SQL Server
		SQL Anywhere
		SQLite
		Drizzle
float	float	MySQL	all	DOUBLE PRECISION UNSIGNED [10]
		PostgreSQL	all	DOUBLE PRECISION
		Oracle
		SQL Server
		SQL Anywhere
		SQLite
		Drizzle
string [2] [5]	string	MySQL	all	VARCHAR(n) [3]
		PostgreSQL
		SQL Anywhere		CHAR(n) [4]
		SQLite
		Drizzle	all	VARCHAR(n)
		Oracle	all	VARCHAR2(n) [3]
				CHAR(n) [4]
		SQL Server	all	NVARCHAR(n) [3]
				NCHAR(n) [4]
text	string	MySQL	all	TINYTEXT [17]
				TEXT [18]
				MEDIUMTEXT [19]
				LONGTEXT [20]
		PostgreSQL	all	TEXT
		SQL Anywhere
		Drizzle
		Oracle	all	CLOB
		SQLite
		SQL Server	all	VARCHAR(MAX)
**guid **	string	MySQL	all	VARCHAR(255) [1]
		Oracle
		SQLite
		Drizzle
		SQL Server	all	UNIQUEIDENTIFIER
		SQL Anywhere
		PostgreSQL	all	UUID
binary [2] [6]	resource	MySQL	all	VARBINARY(n) [3]
		SQL Server
				BINARY(n) [4]
		SQL Anywhere
		Drizzle	all	VARBINARY(n)
		Oracle	all	RAW(n)
		PostgreSQL	all	BYTEA [16]
		SQLite	all	BLOB [16]
blob	resource	MySQL	all	TINYBLOB [17]
				BLOB [18]
				MEDIUMBLOB [19]
				LONGBLOB [20]
		Oracle	all	BLOB
		SQLite
		Drizzle
		SQL Server	all	VARBINARY(MAX)
		SQL Anywhere	all	LONG BINARY
		PostgreSQL	all	BYTEA
boolean	boolean	MySQL	all	TINYINT(1)
		PostgreSQL	all	BOOLEAN
		SQLite
		Drizzle
		SQL Server	all	BIT
		SQL Anywhere
		Oracle	all	NUMBER(1)
date	\DateTime	MySQL	all	DATE
		PostgreSQL
		Oracle
		SQL Anywhere
		SQLite
		Drizzle
		SQL Server	>= 2008
			< 2008	DATETIME [16]
datetime	\DateTime	MySQL	all	DATETIME [13]
		Drizzle		TIMESTAMP [14]
		SQL Server	all	DATETIME
		SQL Anywhere
		SQLite
		PostgreSQL	all	TIMESTAMP(0) WITHOUT TIME ZONE
		Oracle	all	TIMESTAMP(0)
datetimetz	\DateTime	MySQL	all	DATETIME [15] [16]
		Drizzle
		SQLite
		SQL Server	< 2008
			>= 2008	DATETIMEOFFSET(6)
		PostgreSQL	all	TIMESTAMP(0) WITH TIME ZONE
		Oracle
		SQL Anywhere	< 12	DATETIME [15] [16]
			>= 12	TIMESTAMP WITH TIME ZONE
time	\DateTime	MySQL	all	TIME
		SQL Anywhere
		SQLite
		Drizzle
		PostgreSQL	all	TIME(0) WITHOUT TIME ZONE
		Oracle	all	DATE [16]
		SQL Server	< 2008	DATETIME [16]
			>= 2008	TIME(0)
array [1]	array	MySQL	all	TINYTEXT [17]
simple array [1]				TEXT [18]
				MEDIUMTEXT [19]
				LONGTEXT [20]
		PostgreSQL	all	TEXT
		SQL Anywhere
		Drizzle
		Oracle	all	CLOB
		SQLite
		SQL Server	all	VARCHAR(MAX)
json_array	array	MySQL [1]	all	TINYTEXT [17]
				TEXT [18]
				MEDIUMTEXT [19]
				LONGTEXT [20]
		PostgreSQL	>= 9.2	JSON
			< 9.2	TEXT [1]
		SQL Anywhere	all
		Drizzle
		Oracle	all	CLOB [1]
		SQLite
		SQL Server	all	VARCHAR(MAX) [1]
object [1]	object	MySQL	all	TINYTEXT [17]
				TEXT [18]
				MEDIUMTEXT [19]
				LONGTEXT [20]
		PostgreSQL	all	TEXT
		SQL Anywhere
		Drizzle
		Oracle	all	CLOB
		SQLite
		SQL Server	all	VARCHAR(MAX)

fuente:
 http://doctrine-dbal.readthedocs.org/en/latest/reference/types.html