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https://issues.apache.org/jira/browse/ARROW-12153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neville Dipale resolved ARROW-12153.
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Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 9850
[https://github.com/apache/arrow/pull/9850]
> [Rust] [Parquet] Return file metadata after writing Parquet file
> ----------------------------------------------------------------
>
> Key: ARROW-12153
> URL: https://issues.apache.org/jira/browse/ARROW-12153
> Project: Apache Arrow
> Issue Type: New Feature
> Components: Rust
> Reporter: Neville Dipale
> Assignee: Neville Dipale
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Parquet writers like delta-rs rely on the Parquet metadata to write
> file-level statistics for file pruning purposes.
> We currently do not expose these stats, requiring the writer to read the file
> that has just been written, to get the stats. This is more problematic for
> in-memory sinks, as there is currently no way of getting the metadata from
> the sink before it's persisted.
> Explore if we can expose these stats to the writer, to make the above easier.
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