William Liu created ARROW-9063:
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Summary: [Python][C++] Order of files are not respected using the
new pyarrow.dataset
Key: ARROW-9063
URL: https://issues.apache.org/jira/browse/ARROW-9063
Project: Apache Arrow
Issue Type: Bug
Components: C++, Python
Affects Versions: 0.17.1
Environment: ubuntu-18.04
Reporter: William Liu
Say we have multiple parquet files under the same folder (a.parquet, b.parquet,
c.parquet). If I pass a list of file paths into either of the two statements
below
{code:java}
ds = pq.ParquetDataset(fps, use_legacy_dataset=False)
ds = pyarrow.dataset(fps){code}
Then rows of the resulting table will have:
aaaa...bbbb...aaa...bbbb...aaa...ccc..bbb...cccc
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