Arrow.Table needs to either be provided an arrow-formatted file as a string (like Arrow.Table(file)), or a byte vector Vector{UInt8}. You can see an example at least from the Julia side of “round tripping” arrow data w/ pyarrow here: arrow-julia/pyarrow_roundtrip.jl at main · apache/arrow-julia · GitHub. So in your case, I’d see if there’s a way to get access from your table object to the raw arrow-formatted bytes.
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