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https://issues.apache.org/jira/browse/ARROW-8231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney resolved ARROW-8231.
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Fix Version/s: 0.17.0
Resolution: Fixed
Issue resolved by pull request 6742
[https://github.com/apache/arrow/pull/6742]
> [Rust] Parse key_value_metadata from parquet FileMetaData into arrow schema
> metadata
> ------------------------------------------------------------------------------------
>
> Key: ARROW-8231
> URL: https://issues.apache.org/jira/browse/ARROW-8231
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Rust
> Reporter: Jörn Horstmann
> Assignee: Jörn Horstmann
> Priority: Minor
> Labels: pull-request-available
> Fix For: 0.17.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> The parquet-format FileMetaData struct contains optional key value pairs with
> additional metadata about the schema:
> [https://docs.rs/parquet-format/2.6.0/src/parquet_format/parquet_format.rs.html#3821]
> When the parquet file was generated using the java avro parquet writer, this
> for example contains the original avro schema under the `parquet.avro.schema`
> or `avro.schema` keys.
> It would be nice if this metadata was accessible through the
> `arrow::datatypes::Schema.metadata` field.
> I'm willing to implement and create a pull request for this feature.
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