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https://issues.apache.org/jira/browse/ARROW-9063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17134085#comment-17134085
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William Liu commented on ARROW-9063:
------------------------------------

Thank you guys. I will install the nightly build and try today.

> [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
>            Priority: Critical
>              Labels: bug, dataset
>   Original Estimate: 6h
>  Remaining Estimate: 6h
>
> 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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