select cs_cum_max(Close) from Quote_get('IBM');
            cs_cum_max             
-----------------------------------
 float4:{10.5,20.2,30.2,40.2,50.5}
(1 row)

select cs_cum_min(Close) from Quote_get('IBM');
            cs_cum_min             
-----------------------------------
 float4:{10.5,10.5,10.5,10.5,10.5}
(1 row)

select cs_cum_sum(Close) from Quote_get('IBM');
                                    cs_cum_sum                                     
-----------------------------------------------------------------------------------
 float8:{10.5,30.7000007629395,60.9000015258789,101.100002288818,151.600002288818}
(1 row)

select cs_cum_avg(Close) from Quote_get('IBM');
                                    cs_cum_avg                                     
-----------------------------------------------------------------------------------
 float8:{10.5,15.3500003814697,20.3000005086263,25.2750005722046,30.3200004577637}
(1 row)

select cs_cum_prd(Close) from Quote_get('IBM');
                                   cs_cum_prd                                    
---------------------------------------------------------------------------------
 float8:{10.5,212.100008010864,6405.42040374756,257497.9051176,13003644.2084388}
(1 row)

select cs_cum_var(Close) from Quote_get('IBM');
                                   cs_cum_var                                   
--------------------------------------------------------------------------------
 float8:{0,23.5225078201292,64.6866720581052,122.766875371933,200.021595678711}
(1 row)

select cs_cum_dev(Close) from Quote_get('IBM');
                                   cs_cum_dev                                   
--------------------------------------------------------------------------------
 float8:{0,4.85000080619882,8.04280250025482,11.0800214517812,14.1428991256641}
(1 row)