>What SYS(3054) said about this SELECT?

select top 105 trans.cTrans_pk, ;
NVL(Employee_Queue_Schedules.tScheduled_Time, {^3000-01-01 00:00:00}) as tScheduled_Time, ;
Trans_Employees_Queues.cTrans_Employees_Queues_Pk, 0 as iAssigned, ;
space(16) as cCommission_Owner_UsGrLink_fk, ;
space(16) as cQueue_names_fk ;
from trans INNER join Trans_Employees_Queues ;
on trans.cTrans_pk = Trans_Employees_Queues.cTrans_fk ;
LEFT JOIN Employee_Queue_Schedules ON ;
Trans_Employees_Queues.cTrans_Employees_Queues_pk = ;
Employee_Queue_Schedules.cTrans_Employees_Queues_fk ;
and Employee_Queue_Schedules.iActive_Flag = 1 ;
 ;
where Trans_Employees_Queues.cCommission_Owner_UsGrLink_fk IS NULL ;
and Trans_Employees_Queues.cQueue_names_fk = '5776CF7543564793' ;
and trans.cDepartment_Code like 'O' ;
and trans.cResolution_Codes_fk is NULL ;
and	Trans.iAccount_locked_flag = 0 ;
and between(trans.yCurrent_Balance_Amount, 0.0100, 499.9900) ;
and Trans_Employees_Queues.iActive_Flag = 1 ;
AND Trans.cProduct_Line_Code BETWEEN "600" AND "604" ;
AND tExpire_date < {^2006-06-20} order by tScheduled_Time, tDate_Received

Using index tag Crescod_fk to rushmore optimize table trans
Using index tag Cproductcd to rushmore optimize table trans
Rushmore optimization level for table trans: partial
Using index tag Ccommis_fk to rushmore optimize table trans_employees_queues
Using index tag Cqueuen_fk to rushmore optimize table trans_employees_queues
Rushmore optimization level for table trans_employees_queues: partial
Rushmore optimization level for table employee_queue_schedules: none
Joining table trans_employees_queues and table trans using index tag Ctrans_pk
Joining intermediate result and table employee_queue_schedules (Cartesian product)