sys.stats_target$ stores the target list for automated gathering of optimizer statistics. staleness | -100 indicates no statistics, otherwise, the value is a logarithmic staleness factor in the range of -1 … 1. |
osize | Roughly calculated object size |
obj# | Foreign key to obj$ |
flags | 0x01: Timeout failure last time. 0x02: non-segment level of partitioned object |
status | 0: pending, 1: gathering in progress, 2: completed, 3: failed |
sid, serial# | Identification of session that is or was working on this object. |