Github user BryanCutler commented on the issue:
https://github.com/apache/spark/pull/18659
@ueshin I haven't had much luck with the casting workaround:
```
pa.Array.from_pandas(s.astype(t.to_pandas_dtype(), copy=False),
mask=s.isnull(), type=t)
```
It appears that it forces a copy for floating point -> integer and then
checks if any NaNs, so I get the error `ValueError: Cannot convert non-finite
values (NA or inf) to integer`. I'm using Pandas 0.20.1, but also tried 0.19.4
with the same result, any ideas?
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