lidavidm commented on a change in pull request #9966:
URL: https://github.com/apache/arrow/pull/9966#discussion_r611594814
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File path: python/pyarrow/tests/parquet/test_dataset.py
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@@ -972,6 +972,10 @@ def test_dataset_read_pandas(tempdir, use_legacy_dataset):
tm.assert_frame_equal(result, expected)
+ # also be able to pass the columns as a set (ARROW-12314)
+ result = dataset.read_pandas(columns=set(columns)).to_pandas()
+ tm.assert_frame_equal(result, expected)
Review comment:
It looks like this test needs to account for column order potentially
being different, since sets (surprisingly?) didn't get deterministic ordering
like dictionaries did.
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