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https://issues.apache.org/jira/browse/ARROW-13269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17376695#comment-17376695
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Joris Van den Bossche commented on ARROW-13269:
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I think the metadata object should reflect the file that is written. So if the
file doesn't contain the partition columns, then also the metadata shouldn't
contain them?
> [C++] [Dataset] pyarrow.parquet.write_to_dataset does not send full schema to
> metadata_collector
> ------------------------------------------------------------------------------------------------
>
> Key: ARROW-13269
> URL: https://issues.apache.org/jira/browse/ARROW-13269
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 4.0.0
> Reporter: Weston Pace
> Priority: Major
>
> If there are partition columns specified then the writers will only write the
> non-partition columns and thus they will not contain the fields used for the
> partition.
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