Creating dataframe with arrays of different length

[nilshg]

You could do:

julia> DataFrame(abc = abc,
                 def = [def; fill(missing, df_length-length(def))],
                 ghi = [ghi; fill(missing, df_length-length(ghi))])
5×3 DataFrame
 Row │ abc    def      ghi     
     │ Int64  String?  Int64?  
─────┼─────────────────────────
   1 │     6  a             87
   2 │     7  b        missing 
   3 │     8  c        missing 
   4 │     9  missing  missing 
   5 │    10  missing  missing