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https://issues.apache.org/jira/browse/ARROW-9299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-9299.
-----------------------------------
Fix Version/s: 5.0.0
Resolution: Fixed
Issue resolved by pull request 10157
[https://github.com/apache/arrow/pull/10157]
> [Python] Expose ORC metadata() in Python ORCFile
> ------------------------------------------------
>
> Key: ARROW-9299
> URL: https://issues.apache.org/jira/browse/ARROW-9299
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Python
> Affects Versions: 0.17.1
> Reporter: Jeremy Dyer
> Assignee: Ying Zhou
> Priority: Major
> Labels: orc, pull-request-available
> Fix For: 5.0.0
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> There is currently no way for a user to directly access the underlying ORC
> metadata of a given file. It seems the C++ functions and objects already
> existing and rather the plumbing is just missing the the cython/python and
> potentially a few c++ shims. Giving users the ability to retrieve the
> metadata without first reading the entire file could help numerous
> applications to increase their query performance by allowing them to
> intelligently determine which ORC stripes should be read.
> This would allow for something like
> {code:java}
> import pyarrow as pa
> orc_metadata = pa.orc.ORCFile(filename).metadata()
> {code}
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