quinnj commented on PR #466:
URL: https://github.com/apache/arrow-julia/pull/466#issuecomment-1588486732

   As I noted above, `Tuple{Vararg}` actually isn't a concrete type of any kind 
of value in Julia, so it doesn't really make sense to talk about what it 
translates to in the arrow format. At runtime, you will always have some kind 
of concrete `NTuple{N, T}`, based on how many elements there _actually_ are. 
Obviously, this could be pretty tricky to serialize to arrow, however, if you 
had, for example, a `Vector{Tuple{Vararg{String}}}`, with different sized 
tuples. We could potentially try to switch to treating those as lists instead 
of fixed-size lists, but it's such a weird/oddball type that it doesn't seem 
worth it unless someone has a real use-case for it.


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