Cakephp 2.X不支持postgresql ltree运算符'？' 喜欢“ltree？ lquery []”

Question

I use PostgreSQL ltree in a CakePHP 2.X controller and I found when I use the query like below:

$this->UserInfo->query(
    'select * from user_infos where path ? \'{'Test1.1','Test2.1'}\''
); 

It can execute through the psql. The format due to ltree ? lquery[]

it will throw an error:

Error: SQLSTATE[42601]: Syntax error: 7
ERROR: syntax error at or near "[" LINE 1:
       ...t * from user_infos where where path $1 \'{'Test1.1 ... ^

It seems the PDO treats ? as $1 argument?

Anyone has idea to prevent the problem?