#command cdx uniq -k two -a three,merge --agg-post four,three,merge,sort.uniq --agg-post five,three,merge,D,..max_parts:5 --agg-post six,3,merge,count.uniq -c zero
#stdin
CDX one two three
qax aaa 1,2
wsx aaa 3,4
edc aaa 4,5
rfv aaa 0,3
#stdout
CDX zero one two three four five six
4 qax aaa 1,2,3,4,4,5,0,3 0,1,2,3,4,5 1.2.3.4.4 7