This also works:
open("test.csv","w") do fid
println(fid,join(colnames(t),','))
for i in collect(t)
println(fid,join(i,','))
end
end
julia> t = table(rand(100000),rand(100000),names= [:x,:y],chunks=1);
julia> @time open("text.csv","w") do fid
println(fid,join(colnames(t),','))
for i in collect(t)
println(fid,join(i,','))
end
end
0.198821 seconds (1.60 M allocations: 58.118 MiB, 10.27% gc time)