USE tpch1;
select p_size from part group by p_size  order by count(*) desc limit 1;
p_size
10
select p_size, count(*) from part group by p_size  order by count(*) desc limit 1;
p_size	count(*)
10	4177
select p_size, count(*) from part group by p_size  order by 2 desc limit 1;
p_size	count(*)
10	4177
select p_size, count(*) from part group by 1  order by 2 desc limit 1;
p_size	count(*)
10	4177
select p_size, count(*) from part group by 1  order by sum(p_size) desc limit 1;
p_size	count(*)
48	4056