請問在下面這條賦值語句中,shape是什么意思? relate又是什意思?

sql="shape {select od_pno from ok_sub group by od_pno } as cmd1 append ({select ok_sub.*,samp.s_name as s_name,samp.sup_no,samp.s_no,samp.s_size as s_size,samp.s_pcs as s_pcs,dealstor.d_name as d_name from dealstor,samp,ok_sub where ok_sub.d_no=dealstor.d_no and ok_sub.s_itemno=samp.s_itemno} as cmd2 relate 'od_pno' to 'od_pno') as cmd2"