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https://issues.apache.org/jira/browse/ARROW-6697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17256866#comment-17256866
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Ruihang Xia commented on ARROW-6697:
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No problem.
I have looked at that PR, your implementation is very clear, Thanks for that.
> [Rust] [DataFusion] Validate that all parquet partitions have the same schema
> -----------------------------------------------------------------------------
>
> Key: ARROW-6697
> URL: https://issues.apache.org/jira/browse/ARROW-6697
> Project: Apache Arrow
> Issue Type: New Feature
> Components: Rust, Rust - DataFusion
> Reporter: Andy Grove
> Assignee: Andy Grove
> Priority: Major
> Fix For: 3.0.0
>
>
> When reading a partitioned Parquet file in DataFusion, the schema is read
> from the first partition and it is assumed that all other partitions have the
> same schema.
> It would be better to actually validate that all of the partitions have the
> same schema since there is no support for schema merging yet.
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