Moelf opened a new issue, #484:
URL: https://github.com/apache/arrow-julia/issues/484
```julia
julia> using Colors, Arrow, DataFrames
julia> colors = fill(colorant"red", 10)
10-element Array{RGB{N0f8},1} with eltype RGB{FixedPointNumbers.N0f8}:
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
RGB{N0f8}(1.0,0.0,0.0)
julia> ArrowTypes.JuliaType(::Val{:Color}) = RGB{Colors.N0f8}
julia> ArrowTypes.arrowname(::Type{RGB{Colors.N0f8}}) = :Color
julia> df = (c = colors,);
julia> a = tempname();
julia> Arrow.write(a, df)
"/tmp/jl_kVGtyjAbml"
julia> Arrow.Table(a)
Arrow.Table with 10 rows, 1 columns, and schema:
:c RGB{FixedPointNumbers.N0f8}
julia> dfc = DataFrame(Arrow.Table("./place_color.feather"));
julia> DataFrame(Arrow.Table(a))
Error showing value of type DataFrame:
ERROR: MethodError: no method matching
RGB{FixedPointNumbers.N0f8}(::@NamedTuple{i::UInt8}, ::@NamedTuple{i::UInt8},
::@NamedTuple{i::UInt8})
Closest candidates are:
RGB{T}(::T, ::T, ::T) where T
@ ColorTypes ~/.julia/packages/ColorTypes/1dGw6/src/types.jl:97
RGB{T}(::Any) where T
@ ColorTypes ~/.julia/packages/ColorTypes/1dGw6/src/types.jl:465
Stacktrace:
[1] fromarrow(::Type{RGB{FixedPointNumbers.N0f8}},
::@NamedTuple{i::UInt8}, ::@NamedTuple{i::UInt8}, ::@NamedTuple{i::UInt8})
@ ArrowTypes ~/.julia/packages/ArrowTypes/Nb4EC/src/ArrowTypes.jl:168
```
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