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refactor(rust): Re-use already decoded metadata for first path (new-parquet-source) #18656

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merged 4 commits into from
Sep 10, 2024

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Removes the double-fetch/decode of the first file

@github-actions github-actions bot added internal An internal refactor or improvement rust Related to Rust Polars labels Sep 10, 2024
@nameexhaustion nameexhaustion changed the title refactor(rust): Re-use already decoded metadata for first path refactor(rust): Re-use already decoded metadata for first path (new-parquet-source) Sep 10, 2024
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codecov bot commented Sep 10, 2024

Codecov Report

Attention: Patch coverage is 0% with 342 lines in your changes missing coverage. Please review.

Project coverage is 79.90%. Comparing base (fe04390) to head (072f0b5).
Report is 41 commits behind head on main.

Files with missing lines Patch % Lines
...-stream/src/nodes/parquet_source/metadata_fetch.rs 0.00% 340 Missing ⚠️
...ates/polars-stream/src/nodes/parquet_source/mod.rs 0.00% 2 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main   #18656      +/-   ##
==========================================
- Coverage   79.91%   79.90%   -0.02%     
==========================================
  Files        1511     1512       +1     
  Lines      203201   203218      +17     
  Branches     2891     2891              
==========================================
- Hits       162388   162376      -12     
- Misses      40263    40292      +29     
  Partials      550      550              

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pub const fn empty() -> Self {
Self::from_static(&[])
}
pub const EMPTY: Self = Self::from_static(&[]);
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drive-by - MemSlice::EMPTY similar to PlSmallStr::EMPTY

@nameexhaustion nameexhaustion marked this pull request as ready for review September 10, 2024 12:42
@ritchie46 ritchie46 merged commit 5c4e7e9 into pola-rs:main Sep 10, 2024
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@nameexhaustion nameexhaustion deleted the pqs-first-metadata branch September 11, 2024 08:04
@c-peters c-peters added the accepted Ready for implementation label Sep 16, 2024
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3 participants