在预准备语句中绑定十进制值不会找到该行 .

我可以证明该行存在,我可以访问它:

//WORKS
$pstatement = $session->prepare(
    'SELECT * FROM mytable WHERE acc_id = 123456789012345678 '
);
$result    = $session->execute($pstatement); 
foreach ($result as $row) {
    print_r($row);
}

此打印将正确显示如下行:

Array
(
    [acc_id] => Cassandra\Decimal Object
        (
            [type] => Cassandra\Type\Scalar Object
                (
                    [name] => decimal
                )

            [value] => 123456789012345678
            [scale] => 0
        )
...

但是,使用预准备语句时找不到行:

//DOES NOT WORK
$pstatement = $session->prepare(
    'SELECT * FROM mytable WHERE acc_id = ?'
);
$params =   array(
    'arguments' => array( new Cassandra\Decimal(123456789012345678) )
);
$result    = $session->execute($pstatement, $params); 
foreach ($result as $row) {
    print_r($row);
}

这将不会返回该行(也没有错误) . acc_id在cassandra中定义为十进制和PK .

这是Datastax驱动程序中的错误还是我遗漏了什么?