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https://issues.apache.org/jira/browse/ARROW-1756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16236070#comment-16236070
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ASF GitHub Bot commented on ARROW-1756:
---------------------------------------
wesm commented on a change in pull request #1276: ARROW-1756: [Python] Fix
large file read/write error on Mac
URL: https://github.com/apache/arrow/pull/1276#discussion_r148587742
##########
File path: python/pyarrow/tests/test_feather.py
##########
@@ -466,3 +466,9 @@ def test_unsupported(self):
# non-strings
df = pd.DataFrame({'a': ['a', 1, 2.0]})
self._assert_error_on_write(df, ValueError)
+
+ @pytest.mark.slow
+ def test_large_dataframe(self):
+ df = pd.DataFrame(np.random.randint(0, 100, size=(400000000, 1)),
+ columns=list('A'))
Review comment:
`['A']`
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> [Python] Observed int32 overflow in Feather write/read path
> -----------------------------------------------------------
>
> Key: ARROW-1756
> URL: https://issues.apache.org/jira/browse/ARROW-1756
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Wes McKinney
> Assignee: Licht Takeuchi
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.8.0
>
>
> See downstream report
> https://github.com/wesm/feather/issues/321
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