union¶
Union of two lists
x union y union[x;y]Where x and y are lists or atoms, returns a list of the distinct items of its combined arguments, i.e. distinct x,y.
q)1 2 3 3 6 union 2 4 6 8
1 2 3 6 4 8
q)distinct 1 2 3 3 6, 2 4 6 8 / same as distinct on join
1 2 3 6 4 8
q)t0:([]x:2 3 5;y:"abc")
q)t1:([]x:2 4;y:"ad")
q)t0 union t1 / also on tables
x y
---
2 a
3 b
5 c
4 d
q)(distinct t0,t1)~t0 union t1
1b