[jira] [Created] (ARROW-2476) [Python/Question] Maximum length of an Array created from ndarray

["Krisztian Szucs (JIRA)" <ji...@apache.org>]

Krisztian Szucs created ARROW-2476:
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             Summary: [Python/Question] Maximum length of an Array created from ndarray
                 Key: ARROW-2476
                 URL: https://issues.apache.org/jira/browse/ARROW-2476
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Krisztian Szucs


So the format [describes|https://github.com/apache/arrow/blob/master/format/Layout.md#array-lengths] that an array max length is 2^31 - 1, however the following python snippet creates a 2**32 length arrow array:

{code:python}
a = np.ones((2**32,), dtype='int8')
A = pa.Array.from_pandas(a)
type(A)
{code}
{code}pyarrow.lib.Int8Array{code}

Based the layout specification I'd expect a ChunkedArray of three Int8Array's with lengths:
[2^31 - 1, 2^31 - 1, 2]

If it's the expectation is there any documentation for it?



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