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

    [1] => Array
        (
            [sql] => SELECT a.cat_id, a.cat_name, a.sort_order AS parent_order, a.cat_id, a.is_show,b.cat_id AS child_id, b.cat_name AS child_name, b.sort_order AS child_order FROM `db_pingyao3dhangmuo`.`ecs_category` AS a LEFT JOIN `db_pingyao3dhangmuo`.`ecs_category` AS b ON b.parent_id = a.cat_id AND b.is_show = 1 WHERE a.parent_id = '0' ORDER BY parent_order ASC, a.cat_id ASC, child_order ASC
        )

    [2] => Array
        (
            [error] => Out of memory (Needed 1677336 bytes)
        )

    [3] => Array
        (
            [errno] => 5
        )

)


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