[jira] [Closed] (ARROW-4314) [Rust] Strongly-typed reading of Parquet data

["Andrew Lamb (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-4314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Lamb closed ARROW-4314.
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    Resolution: Invalid

> [Rust] Strongly-typed reading of Parquet data
> ---------------------------------------------
>
>                 Key: ARROW-4314
>                 URL: https://issues.apache.org/jira/browse/ARROW-4314
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Rust
>            Reporter: Alec Mocatta
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 11h 40m
>  Remaining Estimate: 0h
>
> See the proposal I made on [~csun]'s repository [here|https://github.com/sunchao/parquet-rs/issues/205] for more details.
> This aims to let the user opt in to strong typing and substantial performance improvements (2x-7x, see [here|https://github.com/sunchao/parquet-rs/issues/205#issuecomment-446016254]) by optionally specifying the type of the records that they are iterating over.
> It is currently a work in progress. All pre-existing tests succeed, bar those in src/record/api.rs which are commented out as they require reworking. Where relevant, pre-existing tests and benchmarks have been duplicated to make new strongly-typed tests and benchmarks, which all also succeed. I've tried to maintain pre-existing APIs where possible. Some changes have been made to better align with prior art in the Rust ecosystem.
> Any feedback while I continue working on it very welcome! Looking forward to hopefully seeing this merged when it's ready.



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