SELECTSUBSTR( date_time, 0, 8 ) date_time,cx,cx_name,cx_code,SUM ( total_num ) num FROMdm.dm_mk_pf_passenger_flowA left JOIN dm.dm_mk_dim_car_type C ON A.cx = C.cx_code WHERESUBSTR( date_time, 0, 5 ) = '2021' ${if(len('CX5','CX30')=0,"","and cx_code in('"+ 'CX5','CX30'+ "')")}GROUP BYSUBSTR( date_time, 0, 8 ),cx,cx_name,cx_code -------------'CX5','CX30'-------------------这个为车系参数请问各位大佬,红色部分为我复选框选择 两项的参数 ,这个sql是错误的,配置分隔符了已经蒙圈了