text: select 1 as a, a + 1 as b, b + 1 as c, c * c;
  select x * x as y, 3 x;
  select 1 x, 2 y, (x + y) z , z;
  select 1 + 2 + 3 as x, x + 2 + 3 as y;
  select x + y + z, 1 x, 2 y, 3 as z;
  select 1 + x, x + 2, 3 x;
  select number + 1 as number, number + 1 as b, b + 1 c from numbers(1);
  select number * number +  1 as number, number + 1 as b, b + 1 c from numbers(1);
  