MySQL server error report:Array
(
    [0] => Array
        (
            [message] => MySQL Query Error
        )

    [1] => Array
        (
            [sql] => SELECT goods_id FROM `OK_ELEC`.`ok_goods` WHERE cat_id=57 AND goods_id > 84047 AND is_on_sale = 1 AND is_alone_sale = 1 AND is_delete = 0 LIMIT 1
        )

    [2] => Array
        (
            [error] => MySQL server has gone away
        )

    [3] => Array
        (
            [errno] => 2006
        )

)