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fix: group_by multiple null columns produce phantom row #15659

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merged 3 commits into from
Apr 15, 2024

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@reswqa reswqa commented Apr 15, 2024

This fixes #15623.

@github-actions github-actions bot added fix Bug fix python Related to Python Polars rust Related to Rust Polars labels Apr 15, 2024
@reswqa reswqa marked this pull request as ready for review April 15, 2024 10:46
@ritchie46 ritchie46 merged commit f992a7a into pola-rs:main Apr 15, 2024
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codspeed-hq bot commented Apr 15, 2024

CodSpeed Performance Report

Merging #15659 will not alter performance

Comparing reswqa:gb_null (62387c4) with main (4e17d02)

Summary

✅ 22 untouched benchmarks

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Successfully merging this pull request may close these issues.

Grouping empty dataframe by multiple columns with aliased pl.len() creates a row of nulls
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