input [a,b,c,d] [b,c] [f,g,h] output a b c d b c f g h   with NS AS ( select 1 as n union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9… Read More Redshift – How to flatten JSON data in redshift