diff --git a/framework/yii/db/cubrid/QueryBuilder.php b/framework/yii/db/cubrid/QueryBuilder.php
index 935b3d3e66..0f9cd33140 100644
--- a/framework/yii/db/cubrid/QueryBuilder.php
+++ b/framework/yii/db/cubrid/QueryBuilder.php
@@ -21,7 +21,7 @@ class QueryBuilder extends \yii\db\QueryBuilder
 	 * @var array mapping from abstract column types (keys) to physical column types (values).
 	 */
 	public $typeMap = array(
-		Schema::TYPE_PK => 'int NOT NULL AUTO_INCREMENT PRIMARY KEY',
+		Schema::TYPE_PK => 'int not null auto_increment primary key',
 		Schema::TYPE_STRING => 'varchar(255)',
 		Schema::TYPE_TEXT => 'varchar',
 		Schema::TYPE_SMALLINT => 'smallint',
diff --git a/framework/yii/db/mssql/QueryBuilder.php b/framework/yii/db/mssql/QueryBuilder.php
index e7f8f8060e..26e8c28168 100644
--- a/framework/yii/db/mssql/QueryBuilder.php
+++ b/framework/yii/db/mssql/QueryBuilder.php
@@ -21,7 +21,7 @@ class QueryBuilder extends \yii\db\QueryBuilder
 	 * @var array mapping from abstract column types (keys) to physical column types (values).
 	 */
 	public $typeMap = array(
-		Schema::TYPE_PK => 'int IDENTITY PRIMARY KEY',
+		Schema::TYPE_PK => 'int identity primary key',
 		Schema::TYPE_STRING => 'varchar(255)',
 		Schema::TYPE_TEXT => 'text',
 		Schema::TYPE_SMALLINT => 'smallint(6)',
diff --git a/framework/yii/db/mysql/QueryBuilder.php b/framework/yii/db/mysql/QueryBuilder.php
index c7a425684e..9c81c99e80 100644
--- a/framework/yii/db/mysql/QueryBuilder.php
+++ b/framework/yii/db/mysql/QueryBuilder.php
@@ -22,7 +22,7 @@ class QueryBuilder extends \yii\db\QueryBuilder
 	 * @var array mapping from abstract column types (keys) to physical column types (values).
 	 */
 	public $typeMap = array(
-		Schema::TYPE_PK => 'int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY',
+		Schema::TYPE_PK => 'int(11) not null auto_increment primary key',
 		Schema::TYPE_STRING => 'varchar(255)',
 		Schema::TYPE_TEXT => 'text',
 		Schema::TYPE_SMALLINT => 'smallint(6)',
diff --git a/framework/yii/db/sqlite/QueryBuilder.php b/framework/yii/db/sqlite/QueryBuilder.php
index be0275a8b6..50944420fd 100644
--- a/framework/yii/db/sqlite/QueryBuilder.php
+++ b/framework/yii/db/sqlite/QueryBuilder.php
@@ -23,7 +23,7 @@ class QueryBuilder extends \yii\db\QueryBuilder
 	 * @var array mapping from abstract column types (keys) to physical column types (values).
 	 */
 	public $typeMap = array(
-		Schema::TYPE_PK => 'integer PRIMARY KEY AUTOINCREMENT NOT NULL',
+		Schema::TYPE_PK => 'integer primary key autoincrement not null',
 		Schema::TYPE_STRING => 'varchar(255)',
 		Schema::TYPE_TEXT => 'text',
 		Schema::TYPE_SMALLINT => 'smallint',