Tortar commented on issue #492:
URL: https://github.com/apache/arrow-julia/issues/492#issuecomment-1773954994
Reopening since even with this new information I couldn't get the code to
work on Windows in the test of Agents.jl and so...I got a new updated MWE:
```julia
using Arrow, DataFrames, Test
if true
function writer_arrow(filename, data, append)
if append
Arrow.append(filename, data)
else
Arrow.write(filename, data; file = false)
end
end
filename = "MWE.arrow"
data = DataFrame(a=1:4, b=["M", "F", "F", "M"])
writer_arrow(filename, data, false)
for i in 1:10
writer_arrow(filename, data, true)
end
data_saved = DataFrame(Arrow.Table("MWE.arrow"), copycols=true)
adata_dfs = [DataFrame(s, copycols=true) for s in
Arrow.Stream("MWE.arrow")]
@test size(vcat(adata_dfs...)) == (44, 2)
GC.gc()
rm("MWE.arrow")
end
```
this again throws "ERROR: IOError: unlink("MWE.arrow"): permission denied
(EACCES)", notice that strangely if I remove the if statement wrapping all the
code everything works fine.
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