`weight` int NOT NULL ,
`submit_time` datetime NOT NULL COMMENT 'date on which this item was submitted to the queue',
`release_time` datetime COMMENT 'date on which this job becomes available; null if ASAP',
`weight` int NOT NULL ,
`submit_time` datetime NOT NULL COMMENT 'date on which this item was submitted to the queue',
`release_time` datetime COMMENT 'date on which this job becomes available; null if ASAP',