@Test
public void updateSql() {

	System.out.println(t.getUpdateByPkSql());
	assertEquals("UPDATE user SET user_name = :userName,pwd = :pwd WHERE user_id = :userId", t.getUpdateByPkSql());
	assertEquals("UPDATE user SET user_name = :userName,pwd = :pwd WHERE user_id = :userId AND group_id = :groupId", multiKeySqlGenerator.getUpdateByPkSql());
	
	assertEquals("UPDATE user SET user_name = :userName,pwd = :pwd WHERE user_id = :userId AND group_id = :groupId", multiKeySqlGenerator.getUpdateByPkSql());
}