greenplum库龄问题解决HINT: Database-wide VACUUM to prevent shutdowns.

        1. database "template1" must be vacuumed within 594822883 transactions  (seg11 10.xx.xx.xx:6003 pid=41768)

    
        2. database "template1" must be vacuumed within 595794542 transactions  (seg20 10.xx.xx.xx:6000 pid=42114)
    
        3. database "template1" must be vacuumed within 591907152 transactions  (seg16 10.xx.xx.xx:6000 pid=41230)
    
        4. database "template1" must be vacuumed within 596279225 transactions  (seg5 10.xx.xx.xx:6001 pid=43202)
    
        5. database "template1" must be vacuumed within 594122249 transactions  (s