Manage spaces in Dataframe/Table column names

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df["ID Object"] deliberately throws an error because it’s ambiguous if it should return a row or a column. Different users have different expectations for what df[1] should return, so we require the expliciteness of df[:, "ID Object"].

What version of Julia and DataFrames are you using? Using getproperty works for me on 1.6.0 and DataFrames 1.1

julia> df = DataFrame("ID Object" => [1, 2, 3])
3×1 DataFrame
 Row │ ID Object 
     │ Int64     
─────┼───────────
   1 │         1
   2 │         2
   3 │         3

julia> df."ID Object"
3-element Vector{Int64}:
 1
 2
 3