[jira] [Updated] (ARROW-8283) [Python][Dataset] Non-existent files are silently dropped in pa.dataset.FileSystemDataset

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-8283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-8283:
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    Labels: dataset pull-request-available  (was: dataset)

> [Python][Dataset] Non-existent files are silently dropped in pa.dataset.FileSystemDataset
> -----------------------------------------------------------------------------------------
>
>                 Key: ARROW-8283
>                 URL: https://issues.apache.org/jira/browse/ARROW-8283
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Uwe Korn
>            Assignee: Joris Van den Bossche
>            Priority: Critical
>              Labels: dataset, pull-request-available
>             Fix For: 1.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> When passing a list of files to the constructor of {{pyarrow.dataset.FileSystemDataset}}, all files that don't exist are silently dropped immediately (i.e. no fragments are created for them).
> Instead, I would expect that fragments will be created for them but an error is thrown when one tries to read the fragment with the non-existent file.



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