Hi, when i run sum function,get a error result:
Hive table,no lookup table
create table tem(a varchar(1),b bigint,c bigint);
insert into tem values('A',null,1);
insert into tem values('A',1,1);
insert into tem values('A',2,1);
insert into tem values('B',3,1);
insert into tem values('B',1,1);
insert into tem values('C',4,1);
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