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https://issues.apache.org/jira/browse/ARROW-10135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17204855#comment-17204855
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Andy Grove commented on ARROW-10135:
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[~chaosun] [~nevi_me] [~alamb] [~jorgecarleitao] I think you may be interested
in this one
> [Rust] [Parquet] Refactor file module to help adding sources
> ------------------------------------------------------------
>
> Key: ARROW-10135
> URL: https://issues.apache.org/jira/browse/ARROW-10135
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Rust
> Affects Versions: 1.0.1
> Reporter: Remi Dettai
> Priority: Major
> Labels: parquet, pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Currently, the Parquet reader is very strongly tied to file system reads.
> This makes it hard to add other sources. For instance, to implement S3, we
> would need a reader that loads entire columns at once rather than buffered
> reads of a few Ko.
> To improve modularity, we could try to move as much logic as possible to the
> generic traits (FileReader, RowGroupReader...) and reduce the code in the
> implementing structs (SerializedFileReader, SerializedRowGroupReader...) to
> the part that is specific to file/buffered reads.
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